Nonsurgical Facial Rejuvenation and Skin Resurfacing Flashcards
Treatment of skin wrinkles requires ablative therapy
through the dermal-epidermal junction into a variable
depth of the reticular dermis.
F Treatment of skin wrinkles requires ablative therapy
through the dermal-epidermal junction into a variable
depth of the papillary dermis.
The precision and outcomes ofchemical peeling and dermabrasion are more technique dependent than their laser
counterparts
T
The epidermis is principally responsible for
protection from the sun and acts as a lipid barrier for water exchange
T
The papillary dermis begins
at the type III collagen-rich basement membrane and is composed of
loose areolar tissue with a dense capillary network that nourishes the
overlying epidermis
T
This capillary network in papillary is also important for heat
exchange with the environment and helps distinguish this layer from
the underlying reticular layer
t
The reticular dermis, primarily composed of type I collagen, accounts for the majority of skin thickness.
t
Fibroblasts, macrophages, and mast cells are all found in the papillary
layer and are key players in skin healing
F Fibroblasts, macrophages, and mast cells are all found in the reticular
layer and are key players in skin healing
Dermal appendages, including hair follicles and sebaceous glands are found in higher concentration
in the papillary dermis. Thus, efficiency ofhealing is inversely related
to depth of injury.
T
skin depth was
measured at 0.2 cm at the forehead, 0.5 cm at the menton, and 0.1 cm
at the zygomatic process and cheek and nasolabial fold regions
T
Solar damage causes actinic irregularities that are characterized
histologically by epidermal hyperplasia and keratinocyte proliferation forming seborrheic and actinic keratoses
T
In lentigines Both an increased number of basal melanocytes and increased deposition of melanin in
keratinocytes are observed.
T
Elimination of these pigmented lesions
requires targeted destruction of melanocytes in the basal layer of the epidermis
T
Melasma is a condition characterized by a symmetric hyperpigmented patches with an irregular outline
T
A Wood lamp can help distinguish melasma from other more
superficial skin pigmented lesions
T
The treatment of melasma is targeted at blocking melanin production with topical tretinoin, hydroquinone (HQ) 2% to 4%,
and topical corticosteroids
T
Additionally, dermal chemical peels, IPL,
and nonablative and ablative laser treatments may improve but not
fully eliminate melasma.
T
Loss of elastic fibers in the superficial dermis and elastotic thickening of the remaining elastic fibers
gives the skin a thickened and fissured appearance
T
Degeneration of
elastic fibers and reduction in glycosaminoglycans in the reticular dermis contributes to dermal thinning.
F Degeneration of
collagen fibers and reduction in glycosaminoglycans in the reticular dermis contributes to dermal thinning.
A loss of oxytalan fibers
at the DEJ that normally form vertical attachments between the
two layers of skin leads to laxity and also contributes to cutaneous
lines
T
underlying bony resorption, soft tissue volume loss, and
weakened osseocutaneous connections result in deflation and, thus,
the more prominent appearance of wrinkles
T
treatment of skin wrinkles requires ablative therapy
of the DEJ into the papillary dermis
T
Although both of these classification systems
are useful, they do not provide the physician with all the information
needed to select the ideal patient-specific treatment
T
FITZPATRICK SKIN TYPE 3 Sometimes burns, always tans, medium complex.ion
T
FITZPATRICK SKIN TYPE 5 Never burns, always tans, markedly dark brown/black
complexion
F Never. burns, always tans, medium brown complexion
