Nonsurgical Facial Rejuvenation and Skin Resurfacing Flashcards
1
Q
prolonged erythema, and hyp opigmentation are indirectly related to depth of injury and target tissue specificity
A
F. prolonged erythema, and hyp opigmentation are directly related to depth of injury and target tissue specificity
2
Q
Pretreatment with tretinoin or hydroquinone in not recommended before chemical peeling T. Or F
A
F. Pretreatment with tretinoin or hydroquinone is recommended prior to chemical resurfacing, for even depth of penetration and a reduction in associated morbidity.
3
Q
Fractionated lasers are designed to keep the stratum corneum largely intact while ablating a variable amount of dermis
A
T
4
Q
What the hallmarks of aged skin
A
Irregularities in surface texture, pigmentation, and wrinkling are hallmarks of aged skin
5
Q
The reticular dermis, primarily composed of type lll collagen, accounts for the majority of skin thickness
A
F. The reticular dermis, primarily composed of type I collagen, accounts for the majority of skin thickness
6
Q
adnexal structures are found in higher concentration in the papillary dermis.
A
T
7
Q
Elimination of these pigmented (lentigen)lesions requires targeted destruction of melanocytes in the basal layer of epiderm
A
T
8
Q
Wood lamp can help distinguish melasma from other more superficial skin pigmented lesions.
A
T
9
Q
Additionally, dermal chemical peels, IPL, and nonablative and ablative laser treatments may improve and fully eliminate melasma.
A
Additionally, dermal chemical peels, IPL, and nonablative and ablative laser treatments may improve but not fully eliminate melasma.
10
Q
treatment of skin wrinkles requires ablative therapy of the DEJ into the papillary dermis.
A
T
11
Q
Areas prone to scar include the neck and mandibular border
A
T because they have thinner underlying derms and fewer adenxial stracture
12
Q
Topical tretinoin 0.05% to 0.1 % is used in conjunction with HQ 4% cream to restore even epidermal thickness and improve solar elastosis. 6 week before chemical peeling
A
T
13
Q
Why we use tretinoin as pre treatment before chemicals peeling?
A
to ensure even depth of treatment penetration and faster postprocedure healing.15
14
Q
Tretinion usage
A
It is the only therapy proven to repair photodamage with benefits persisting even after discontinuation ofuse
15
Q
There is a risk of tinnitus at higher concentrations with glycolic acid T or F
A
F. With salicylic acid
16
Q
most commonly used superficial peeling agent is ?
A
Jassner Solution
17
Q
Trichloroacetic Acid reach a variety of depth
A
T
18
Q
Benefit of tretinoin
A
are effective for reversing actinic sun damage,
reducing fine lines, improving skin texture, and
increasing collagen synthesis ,suppresses melanocyte
19
Q
Erythema may persist for several months while collagen remodeling proceeds with TCA
A
T
20
Q
The most common serious side effect if phenol peeling is hypopigmentation
A
F. Arrhythmai
21
Q
Histological studies have demonstrated permanent reduction in dermal thickness following dermabrasion, which is distinct from the compensatory dermal thickening that occurs following chemical peels and coagulative lasers
A
T
22
Q
Chromophore is either water or haemoglupin or melanin
A
T
23
Q
Epidermal damage is most likely with visible light (green-yellow, IPL) treatments targeting dermal hair follicles and blood vessels.
A
T
24
Q
Nonablative resurfacing spares epidermal destruction, targeting deeper structures within the dermis
A
T
25
The most common complication that decreases the popularity of the co2 laser is prolonged erythema
F Slow healing, painful recovery, prolonged erythema (6+ months), and permanent hypopigmentation which has decreased the CO2 modality's popularity
26
Er;YAG laser is less potent than co2 laser
F. The 2940 nm wavelength has an affinity for water that is nearly 12 to 15 times higher than that of the CO 2 laser
27
Er;yag laser cause less collateral damage damage
T
28
, the limited photothermal effects of Er:yag laser also lead to significantly reduced collagen contraction
T
29
Er;yag laser produce heat coagulation therpay. T or F
F. CO 2laser that is only a heat-coagulative ablative technology The Er:YAG laser can be used to deliver either coagulation or cool ablation
The cool ablation mode produces a result similar to dermabrasion.
30
Erbium and CO lasers have similar resurfacing results
T
31
All patients should be treated prophylactically with antiviral medications with laser treatment
T This treatment should begin I or 2 days before
laser treatment and continue for 2 weeks following
32
Non ablative laser therapy carry the risk of infection T or F
F. Ablative laser
33
All patients should be treated prophylactically with antiviral medications can safely used in darker skin patients
T
34
Visible light (520-600 nm) has a very strong affinity for hemoglobin and melanin
T
35
infrared II has the weakest affinity for melanin rendering it safer to use in patients with higher Fitzpatrick types.
T
36
Potassium-titanyl-phosphate (KTP) lasers should be fon under general anaesthesia
T
37
Ptassium-Titanyl-Phosphate laser is safest in patients with skin phototypes I-III as the wavelength is also absorbed by melanin
T
38
Nd:YAG not attracted to a specific chromophore
T
39
Nd:YAG has mor affinity for for hemoglobin than KTP
F. has much less affinity for hemoglobin than the KTP and PDL lasers, but its absorption by melanin is also limited
40
Intense Pulsed Light is not laser
T
41
IPL is safest to use in patients with skin phototypes 5-6
F. IPL is safest to use in patients with skin phototypes 1-111.
42
Q-switched Nd:YAG laser with a wavelength of 1064 nm is much less well absorbed by melanin but it reaches deeper tissue and can treat dermal pigmented lesions.
T
43
Treatment of skin wrinkles requires ablative therapy
through the dermal-epidermal junction into a variable
depth of the papillary dermis
T
44
type III collagen present in the papillary dermis
T
45
Fibroblasts, macrophages, and mast cells are all found in the reticular
layer
T
46
(lentigines) treatnent
requires targeted destruction of melanocytes in the basal layer of the epidermis
47
The Wood lamp enhances superficial pigment and leaves deeper dermal pigment
T
48
treatment of skin wrinkles requires ablative therapy
of the DEJ into the papillary dermis
T
49
Mild form of GLOGAU SCALE
No wrinkles No keratosis
Wears little to no makeup
50
Special attention should be taken while treating patients with
freckles, melasma, or postinflammatory hyperpigmentation (PIH).
Regardless ofethnic background or skin type, a history of these signs
heralds the risk of PIH
T
51
the mechanism and depth of insult after which permanent
scarring occurs remain unclear and vary by modality
T
52
Areas prone to scar include the neck and mandibular border why ?
T that
have thinner underlying dermis and fewer adnexal skin structures
efficient re-epithelialization
53
Deeper injuries within the dermal layer stimulate
fibroblast production ofnew collagen via the classic inflammation,
proliferation, and remodeling phases of wound healing
T
54
Vitamin A and its derivatives (tretinoin) benefit
reversing actinic sun damage, reducing fine lines, improving skin texture, and increasing collagen synthesis.tretinoin suppresses melanocyte
55
Treatment end point for
a-hydroxy acids is an indistinct frosting followed by water rinse
T
56
The Food and Drug Administration
suggests a limit of30% concentration, but it has been used off-label as
high as 50% and the recommended lower limit ofthe pH is 3
T
57
Both
the concentration and pH affect penetration depth.
T
58
B-Hydroxy Acids group . Salicylic acid is the most commonly used acid in this group and usually dosed up to a concentration of 30%
T
59
The risk of high doses of salicylic acid
There is a risk of tinnitus
at higher concentrations.
60
Jessner Solution the most commonly
used superficial peeling agent
T
61
Jessner does not require neutralization owing to its rapid volatility.
T
62
The depth oftreatment is controlled by number oflayers applied
T
63
Jessner
dekeratinization ofthe cutaneous surface promotes a more even and
more intense depth of penetration with a TCA peel
T
64
TCA causes protein coagulation and denaturation and can
be used to reach a variety ofdepths
T
65
It is self-neutralizing and will keep penetrating until the acid has been used up by a certain amount of protein
T
66
With an increase the concentration their will be increase in the depth of penetration
F regardless of concentration, the acid can drive
deeper into the skin with repeated application
67
The progression of the frosting color from pink to uniform white signifies entry into the papillary dermis
T
68
the subsequent gray hued frost denotes
the reticular dermis.
T
69
Once the desired depth ofpeel is reached, the acid
is diluted with water, which helps to dissipate the heat generated
T
70
Erythema may persist for several months while collagen remodeling
proceeds with tca
T
71
Phenol, or carbolic acid, causes superficial peeling
F deep peeling
72
Phenool reache to It predictably penetrates the upper reticular dermis
T
73
In the Baker-Gordon formula the phenol responsible for deep penetration
F croton oil was the active formula for deep peeling
74
The end
point for phenol/croton oil is similar to the TCA frosting, but it
appears more gray-white
T
75
The phenol/croton oil peel is the most aggressive and most efficacious peel for deep set and perioral rhytids.
T
76
it also carries the highest risk of scarring and hypopigmentation
T
77
A common complication from TCA peels is PIH
T
78
Pretreatment with
isotretinoin (Accutane) may increase the risk of hypertrophic scarring
T
79
Complications of phenol/croton peels include hypopigmenta
T
80
Dermabrasion is most commonly used to reduce raised scars,
especially acne scars,
T
81
Complete photorejuvenation requires targeting water,
hemoglobin, and melanin. No one laser or wavelength meets all of
those objectives on its own
T
82
Molecular structural changes occur at temperatures from 43 to S0°C.
T
83
ways to localize temperature elevation to specific targets is to cool surrounding areas or
deliver very small beams (fractional methods)
T
84
Epidermal damage is most likely with visible light (green-yellow,
IPL) treatments targeting dermal hair follicles and blood vessels.
T
85
Continuous CO
2 laser resurfacing remains the most effective
method of wrinkle removal
T
86
Er:YAG
to deliver energy to specific depths in the skin without heating the
surrounding tissue, thus causing less collateral damage.
T
87
collagen contraction occurs more with co2 than Er:YAG
T the limited photothermal effects of ER:YAG
88
Er:YAG laser can be used to deliver either coagulation or cool ablation This is different from the CO2 laser that is only a heat-coagulative ablative technology
T
89
The cool ablation mode produces a result
similar to dermabrasion. In the cool ablative mode
T
90
, ablative laser therapy carries the
risk of infection (bacterial, viral, and fungal) due to the absence of
the protective epidermal barrier
T
91
infrared II has the weakest affinity for melanin rendering it safer to use in patients with higher Fitzpatrick types
T
92
Vvasodilatory anesthetics should be avoided in the treatment of vascular lesions
T
93
Pulsed Dye The 577 to 595 nm wavelengths are also absorbed by melanin to
a lesser degree than hemoglobin.
T
94
ND:YAG The 1064 nm wavelength has much less affinity for hemoglobin than the KTP and
PDL lasers, but its absorption by melanin is also limited, making
it relatively safer to use in darker skinned patients
T
95
ND:YAG The 1064 nm wavelength has much less affinity for hemoglobin than the KTP and
PDL lasers, but its absorption by melanin is also limited, making
it relatively safer to use in darker skinned patients
T
96
IPL is safest to use in patients with skin phototypes 1-111.
T
97
Glycolic is the most widely used acid of alph hydroxy acid group
T
97
Glycolic is the most widely used acid of alph hydroxy acid group
T
97
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
97
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
98
Glycolic is the most widely used acid of alph hydroxy acid group
T
98
Salicylic acid is B-Hydroxy Acids
T
98
Glycolic is the most widely used acid of alph hydroxy acid group
T
98
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
98
There is a clear light frost end
point, and it does not require neutralization owing to its rapid volatility
There is a clear light frost end
point, and it does not require neutralization owing to its rapid volatility
98
Glycolic is the most widely used acid of alph hydroxy acid group
T
98
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
98
Salicylic acid is B-Hydroxy Acids
T
99
Salicylic acid is B-Hydroxy Acids
T
99
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
99
Glycolic is the most widely used acid of alph hydroxy acid group
T
99
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
99
The depth of treatment with Jassner is controlled by the number of layers applied.
T
99
Salicylic acid is B-Hydroxy Acids
T
99
Glycolic is the most widely used acid of alph hydroxy acid group
T
99
The depth of treatment with Jassner is controlled by the number of layers applied.
T
99
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
99
TCA It is self-neutralizing
T
99
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
99
Glycolic is the most widely used acid of alph hydroxy acid group
T
99
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
99
The depth of treatment with Jassner is controlled by the number of layers applied.
T
99
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
99
TCA It is self-neutralizing
T
99
TCA is a Medium-Depth Peels
T
99
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
99
Salicylic acid is B-Hydroxy Acids
T
99
The depth of treatment with Jassner is controlled by the number of layers applied.
T
99
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
99
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
99
TCA is a Medium-Depth Peels
T
100
Glycolic is the most widely used acid of alph hydroxy acid group
T
100
TCA It is self-neutralizing
T
100
Glycolic is the most widely used acid of alph hydroxy acid group
T
100
Salicylic acid is B-Hydroxy Acids
T
100
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
100
The depth of treatment with Jassner is controlled by the number of layers applied.
T
100
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
100
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
100
TCA is a Medium-Depth Peels
T
100
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
100
Glycolic is the most widely used acid of alph hydroxy acid group
T
100
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
100
Salicylic acid is B-Hydroxy Acids
T
100
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
100
The depth of treatment with Jassner is controlled by the number of layers applied.
T
101
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
101
TCA is a Medium-Depth Peels
T
101
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
102
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
103
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
103
Salicylic acid is B-Hydroxy Acids
T
103
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
103
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
104
The depth of treatment with Jassner is controlled by the number of layers applied.
T
104
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
104
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
104
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
104
Glycolic is the most widely used acid of alph hydroxy acid group
T
104
Salicylic acid is B-Hydroxy Acids
T
104
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
104
TCA is a Medium-Depth Peels
T
104
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
104
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
104
phenol is one of the deep penetration chemical peeling
T
104
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
104
Glycolic is the most widely used acid of alph hydroxy acid group
T
104
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
104
Salicylic acid is B-Hydroxy Acids
T
104
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
104
The depth of treatment with Jassner is controlled by the number of layers applied.
T
104
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
104
TCA It is self-neutralizing
T
104
TCA is a Medium-Depth Peels
T
105
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
105
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
105
phenol is one of the deep penetration chemical peeling
T
106
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
107
Glycolic is the most widely used acid of alph hydroxy acid group
T
107
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
107
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
107
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
107
Glycolic is the most widely used acid of alph hydroxy acid group
T
107
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
107
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
107
The depth of treatment with Jassner is controlled by the number of layers applied.
T
107
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
107
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
107
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
107
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
phenol and carbolic acid is one of the deep penetration chemical peeling
T
107
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
107
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
107
TCA is a Medium-Depth Peels
T
107
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
107
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
107
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
107
The depth of treatment with Jassner is controlled by the number of layers applied.
T
107
TCA It is self-neutralizing
T
107
TCA is a Medium-Depth Peels
T
107
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
107
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
107
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
phenol and carbolic acid is one of the deep penetration chemical peeling
T
107
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
107
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
107
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
107
Salicylic acid is B-Hydroxy Acids
T
107
The depth of treatment with Jassner is controlled by the number of layers applied.
T
107
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
107
decreasing the spot
size will increase the power density
T
107
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
107
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
107
Salicylic acid is B-Hydroxy Acids
T
107
The depth of treatment with Jassner is controlled by the number of layers applied.
T
107
decreasing spot size also
decreases depth of penetration and increases scatter
T
107
decreasing the spot
size will increase the power density
T
107
longer pulse durations cause greater collateral damage
T
107
The depth of treatment with Jassner is controlled by the number of layers applied.
T
107
Salicylic acid is B-Hydroxy Acids
T
107
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
107
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
107
Glycolic is the most widely used acid of alph hydroxy acid group
T
107
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
107
Salicylic acid is B-Hydroxy Acids
T
107
The depth of treatment with Jassner is controlled by the number of layers applied.
T
107
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
107
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
107
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
TCA It is self-neutralizing
T
107
phenol and carbolic acid is one of the deep penetration chemical peeling
T
107
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
107
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
107
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
107
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
107
decreasing the spot
size will increase the power density
T
107
decreasing spot size also
decreases depth of penetration and increases scatter
T
107
longer pulse durations cause greater collateral damage
T
107
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
107
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
107
Glycolic is the most widely used acid of alph hydroxy acid group
T
107
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
107
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
107
The depth of treatment with Jassner is controlled by the number of layers applied.
T
107
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
107
TCA is a Medium-Depth Peels
T
107
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
107
TCA It is self-neutralizing
T
107
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
107
Salicylic acid is B-Hydroxy Acids
T
107
decreasing the spot
size will increase the power density
T
107
decreasing spot size also
decreases depth of penetration and increases scatter
T
107
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
107
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
107
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
107
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
107
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
107
TCA It is self-neutralizing
T
107
TCA is a Medium-Depth Peels
T
107
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
107
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
phenol and carbolic acid is one of the deep penetration chemical peeling
T
107
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
107
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
107
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
107
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
107
decreasing the spot
size will increase the power density
T
107
decreasing spot size also
decreases depth of penetration and increases scatter
T
107
longer pulse durations cause greater collateral damage
T
107
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
107
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
107
Glycolic is the most widely used acid of alph hydroxy acid group
T
107
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
107
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
107
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
107
TCA It is self-neutralizing
T
107
TCA is a Medium-Depth Peels
T
107
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
107
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
107
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
phenol and carbolic acid is one of the deep penetration chemical peeling
T
107
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
107
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
107
decreasing spot size also
decreases depth of penetration and increases scatter
T
107
decreasing the spot
size will increase the power density
T
107
longer pulse durations cause greater collateral damage
T
107
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
107
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
107
Erbium lasers create less coagulated tissue to absorb heat and make it is easier to drill deeper wounds into the skin with each pass
T
107
Salicylic acid is B-Hydroxy Acids
T
107
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
107
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
107
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
107
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
107
Salicylic acid is B-Hydroxy Acids
T
107
TCA It is self-neutralizing
T
107
Glycolic is the most widely used acid of alph hydroxy acid group
T
107
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
107
TCA is a Medium-Depth Peels
T
107
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
107
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
phenol and carbolic acid is one of the deep penetration chemical peeling
T
107
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
107
decreasing spot size also
decreases depth of penetration and increases scatter
T
107
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
107
decreasing the spot
size will increase the power density
T
107
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
107
Erbium lasers create less coagulated tissue to absorb heat and make it is easier to drill deeper wounds into the skin with each pass
T
107
longer pulse durations cause greater collateral damage
T
107
Following erbium laser treatment, the desiccated tissue should be wiped
off.
F Following CO2 laser treatment, the desiccated tissue should be wiped off; however, after erbium laser treatment, the barrier is left in place for faster healing and decreased posttreatment pigmentary changes
107
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
107
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
107
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
107
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
107
Glycolic is the most widely used acid of alph hydroxy acid group
T
107
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
107
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
107
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
107
Salicylic acid is B-Hydroxy Acids
T
107
The depth of treatment with Jassner is controlled by the number of layers applied.
T
107
TCA is a Medium-Depth Peels
T
107
TCA It is self-neutralizing
T
107
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
107
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
107
phenol and carbolic acid is one of the deep penetration chemical peeling
T
107
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
107
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
107
decreasing the spot
size will increase the power density
T
107
decreasing spot size also
decreases depth of penetration and increases scatter
T
107
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
107
longer pulse durations cause greater collateral damage
T
107
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
107
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
107
Erbium lasers create less coagulated tissue to absorb heat and make it is easier to drill deeper wounds into the skin with each pass
T
107
Following erbium laser treatment, the desiccated tissue should be wiped
off.
F Following CO2 laser treatment, the desiccated tissue should be wiped off; however, after erbium laser treatment, the barrier is left in place for faster healing and decreased posttreatment pigmentary changes
107
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
108
Glycolic is the most widely used acid of alph hydroxy acid group
T
108
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
108
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
109
The depth of treatment with Jassner is controlled by the number of layers applied.
T
109
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
109
Salicylic acid is B-Hydroxy Acids
T
109
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
110
TCA It is self-neutralizing
T
110
TCA is a Medium-Depth Peels
T
110
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
110
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
111
phenol and carbolic acid is one of the deep penetration chemical peeling
T
111
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
111
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
112
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
112
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
112
decreasing the spot
size will increase the power density
T
113
decreasing spot size also
decreases depth of penetration and increases scatter
T
113
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
113
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
113
longer pulse durations cause greater collateral damage
T
113
Erbium lasers create less coagulated tissue to absorb heat and make it is easier to drill deeper wounds into the skin with each pass
T
113
Following erbium laser treatment, the desiccated tissue should be wiped
off.
F Following CO2 laser treatment, the desiccated tissue should be wiped off; however, after erbium laser treatment, the barrier is left in place for faster healing and decreased posttreatment pigmentary changes
114
Fractionated Photothermolysis Lasers can safely be used on darker skinned patients
T
115
One of the first
clinical applications of fractionated laser therapy was treatment of
facial melasma
T
116
Glycolic is the most widely used acid of alph hydroxy acid group
T
117
Salicylic acid is B-Hydroxy Acids
T
117
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
118
TCA is a Medium-Depth Peels
T
118
TCA It is self-neutralizing
T
119
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
119
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
120
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
120
The depth of treatment with Jassner is controlled by the number of layers applied.
T
120
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
120
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
120
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
120
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
120
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
120
decreasing the spot
size will increase the power density
T
120
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
121
decreasing spot size also
decreases depth of penetration and increases scatter
T
121
longer pulse durations cause greater collateral damage
T
121
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
121
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
121
Erbium lasers create less coagulated tissue to absorb heat and make it is easier to drill deeper wounds into the skin with each pass
T
121
Fractionated Photothermolysis Lasers can safely be used on darker skinned patients
T
121
phenol and carbolic acid is one of the deep penetration chemical peeling
T
122
One of the first
clinical applications of fractionated laser therapy was treatment of
facial melasma
T
122
Following erbium laser treatment, the desiccated tissue should be wiped
off.
F Following CO2 laser treatment, the desiccated tissue should be wiped off; however, after erbium laser treatment, the barrier is left in place for faster healing and decreased posttreatment pigmentary changes
122
Fractionated treatments have led to less dramatic
results than the nonfractionated ablative devices
T
123
Glycolic is the most widely used acid of alph hydroxy acid group
T
123
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
124
TCA is a Medium-Depth Peels
T
124
TCA It is self-neutralizing
T
124
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
124
Salicylic acid is B-Hydroxy Acids
T
124
The depth of treatment with Jassner is controlled by the number of layers applied.
T
124
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
125
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
125
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
126
phenol and carbolic acid is one of the deep penetration chemical peeling
T
126
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
127
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
127
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
128
decreasing the spot
size will increase the power density
T
128
longer pulse durations cause greater collateral damage
T
128
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
128
Erbium lasers create less coagulated tissue to absorb heat and make it is easier to drill deeper wounds into the skin with each pass
T
128
Following erbium laser treatment, the desiccated tissue should be wiped
off.
F Following CO2 laser treatment, the desiccated tissue should be wiped off; however, after erbium laser treatment, the barrier is left in place for faster healing and decreased posttreatment pigmentary changes
128
Fractionated Photothermolysis Lasers can safely be used on darker skinned patients
T
128
One of the first
clinical applications of fractionated laser therapy was treatment of
facial melasma
T
128
Fractionated treatments have led to less dramatic
results than the nonfractionated ablative devices
T
129
What is Hybrid Fractionated Lasers?
Dual wavelength hybrid fractional lasers use both fractionated Er:YAG 2840 nm to deliver epidermal ablation up to 100 µm and diode laser 1470 nm to cause dermal coagulation from 100 to
700 µm
129
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
130
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
130
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
130
decreasing spot size also
decreases depth of penetration and increases scatter
T
131
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
131
Glycolic is the most widely used acid of alph hydroxy acid group
T
131
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
132
Salicylic acid is B-Hydroxy Acids
T
132
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
132
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
132
The depth of treatment with Jassner is controlled by the number of layers applied.
T
133
TCA It is self-neutralizing
T
133
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
133
TCA is a Medium-Depth Peels
T
134
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
134
phenol and carbolic acid is one of the deep penetration chemical peeling
T
134
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
134
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
134
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
135
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
135
decreasing the spot
size will increase the power density
T
135
decreasing spot size also
decreases depth of penetration and increases scatter
T
136
longer pulse durations cause greater collateral damage
T
136
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
136
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
136
Erbium lasers create less coagulated tissue to absorb heat and make it is easier to drill deeper wounds into the skin with each pass
T
136
Fractionated Photothermolysis Lasers can safely be used on darker skinned patients
T
136
Following erbium laser treatment, the desiccated tissue should be wiped
off.
F Following CO2 laser treatment, the desiccated tissue should be wiped off; however, after erbium laser treatment, the barrier is left in place for faster healing and decreased posttreatment pigmentary changes
136
One of the first
clinical applications of fractionated laser therapy was treatment of
facial melasma
T
137
Fractionated treatments have led to less dramatic
results than the nonfractionated ablative devices
T
137
Long pulse duration is better to aviod purpuric lesion in PDL
T
137
What is Hybrid Fractionated Lasers?
Dual wavelength hybrid fractional lasers use both fractionated Er:YAG 2840 nm to deliver epidermal ablation up to 100 µm and diode laser 1470 nm to cause dermal coagulation from 100 to
700 µm
138
Glycolic is the most widely used acid of alph hydroxy acid group
T
138
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
139
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
139
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
139
The depth of treatment with Jassner is controlled by the number of layers applied.
T
140
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
141
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
141
Salicylic acid is B-Hydroxy Acids
T
141
TCA is a Medium-Depth Peels
T
142
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
142
TCA It is self-neutralizing
T
142
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
142
phenol and carbolic acid is one of the deep penetration chemical peeling
T
143
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
143
decreasing the spot
size will increase the power density
T
143
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
144
decreasing spot size also
decreases depth of penetration and increases scatter
T
144
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
144
longer pulse durations cause greater collateral damage
T
145
Erbium lasers create less coagulated tissue to absorb heat and make it is easier to drill deeper wounds into the skin with each pass
T
145
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
146
Following erbium laser treatment, the desiccated tissue should be wiped
off.
F Following CO2 laser treatment, the desiccated tissue should be wiped off; however, after erbium laser treatment, the barrier is left in place for faster healing and decreased posttreatment pigmentary changes
146
Fractionated Photothermolysis Lasers can safely be used on darker skinned patients
T
146
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
147
One of the first
clinical applications of fractionated laser therapy was treatment of
facial melasma
T
148
Fractionated treatments have led to less dramatic
results than the nonfractionated ablative devices
T
148
Long pulse duration is better to aviod purpuric lesion in PDL
T
148
What is Hybrid Fractionated Lasers?
Dual wavelength hybrid fractional lasers use both fractionated Er:YAG 2840 nm to deliver epidermal ablation up to 100 µm and diode laser 1470 nm to cause dermal coagulation from 100 to
700 µm
149
The KTP laser is associated
with a fleeting stinging sensation
T
150
The treatment endpoint for a-hydroxy acids is an indistinct frosting followed by a water rinse.
T
150
Glycolic is the most widely used acid of alph hydroxy acid group
T
151
The Food and Drug Administration suggests a limit of 30% concentration, but it has been used off-label as high as 50%
T
151
Salicylic acid is B-Hydroxy Acids
T
151
Jassner does not need neutralization
T There is a clear light frost end
the point, and it does not require neutralization owing to its rapid volatility
152
Jessner solution can be used in isolation as a superficial chemical peel or as a prelude to a deeper peel, such as TCA. Preemptive Jessner
dekeratinization of the cutaneous surface promotes a more even and more intense depth of penetration with a TCA peel
T
152
The depth of treatment with Jassner is controlled by the number of layers applied.
T
152
TCA It is self-neutralizing
T
153
The TCA solution is applied with sweeping brush strokes to regional facial units and allowed to sit for one to 2 minutes until the characteristic white frost develops
T
153
The progression of the frosting color from pink to uniform white signifies entry
into the papillary dermis, and the subsequent gray hued frost denotes
the reticular dermis.
T
153
With high concentration the TCA can make deep peeling
F It keep penetrating until the acid has been used up by a certain amount of protein. Therefore, regardless of concentration, the acid can drive
deeper into the skin with repeated application
153
TCA is a Medium-Depth Peels
T
154
Complete photorejuvenation requires targeting water only
F Complete photorejuvenation requires targeting water,
hemoglobin, and melanin
154
croton oil was the active ingredient for deep peeling in the Baker-Gordon formula
T
154
Laser treatments targeting water produce histological changes similar to those of phenol peels,
T
154
phenol and carbolic acid is one of the deep penetration chemical peeling
T
155
longer pulse durations cause greater collateral damage
T
155
Under 43°C, the skin remains unharmed for as long as 20 minutes
T
155
decreasing the spot
size will increase the power density
T
156
Erbium lasers create less coagulated tissue to absorb heat and make it is easier to drill deeper wounds into the skin with each pass
T
156
Molecular structural changes occur at temperatures from 43 to S0°C. High temperatures at shorter times(>100°C for 1 ms) can induce cell
death as well
T
156
Following erbium laser treatment, the desiccated tissue should be wiped
off.
F Following CO2 laser treatment, the desiccated tissue should be wiped off; however, after erbium laser treatment, the barrier is left in place for faster healing and decreased posttreatment pigmentary changes
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Fractionated Photothermolysis Lasers can safely be used on darker skinned patients
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Fractionated treatments have led to less dramatic
results than the nonfractionated ablative devices
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What is Hybrid Fractionated Lasers?
Dual wavelength hybrid fractional lasers use both fractionated Er:YAG 2840 nm to deliver epidermal ablation up to 100 µm and diode laser 1470 nm to cause dermal coagulation from 100 to
700 µm
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One of the first
clinical applications of fractionated laser therapy was treatment of
facial melasma
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