week 1 Flashcards

topical

1
Q

FL varnish is FDA approved for

A

desensitization used off label for caries prevention

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Neutral Sodium Flouride

A

NaF 5.0%, ph of 7.0, 22,600 ppm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How many months does fluoride varnish uptake for

A

5-6 months

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Fl V is used for caries prevention on

A

children, patients with reduced saliva, demineralized areas, root exposure, and incipient caries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Anesthetizes the terminal nerve endings used for

A

-patient assessments as well as debridement
-disease or injury-related sensitivity
Aphthous ulcer
Cheek bite
Gingivitis
-preparation for local anesthetic injection
-suture removal
-Prevent pain or gagging during radiographs and impressions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Benzocaine gel

A

(20%/180mg)
Contains dye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Lidocaine paste (5%)

A

no dye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Chloraseptic liquid spray

A

(phenol 1.4)
Alcohol free
Contains red or green dye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Ceticaine

A

Used for swishing prior to radiographs in patients with severe gag reflex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Benzocaine contraindications

A

is an esther
Absorbed systemically
Allergic response possible but limited to the site of application
Red dye allergy
Patients with previous adverse reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

lidocaine contraindication

A

Amide with exceptionally low incidence of allergic reactions = minimal contraindications
15 min duration for paste
Transoral patch provides 45 min relief after 15 min application period

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

ceticaine contraindication

A

swallow potential

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

chloraseptic contraindications

A

dye allergy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Dentinal hypersensitivity

A

Short sharp pain arising from exposed dentin in response to stimuli
80% of population affected sometime during their lifetime
Tooth retention/ increased lifespan contributing to higher incidence
Expected to continue to increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Mechanisms of dentin exposure

A

Gingival recession
Loss of enamel/cementum
Attrition
Abrasion
Erosion
Abfraction
Sudden vs gradual exposure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Sclerosis of dentin

A

Mineral deposits within tubules due to traumatic stimuli
Results in smaller diameter tubule to transmit stimuli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Secondary dentin

A

Gradual deposit between pulp chamber and dentin
Insulates pulp from dentinal fluid disturbances/stimuli
Deposits increase with age creating smaller pulp chamber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Hydrodynamic Theory

A

The movement of fluid within dentinal tubules stimulates pulpal nerve receptors thereby causing pain
Brannstrom 1960’s
The most widely accepted theory of pain of dent hypersensitivity

19
Q

Differential diagnosis of dental caries

A

: intensified w/ stimuli and is prolonged, felt after stimuli is removed

20
Q

Differential diagnosis of pulpal pain

A

throbbing, severe, without provocation

21
Q

Differential diagnosis of chewing pain

A

pulpal pain

22
Q

Differential diagnosis of hot/cold

A

either hypersensitivity or pulpal pain

23
Q

Pain of dentin hypersensitivity will subside after stimulus is removed

A

Tactile or mechanical
Evaporative (use of suction or dry tooth)
Osmotic and chemical: sweet, salty, acidic

24
Q

desensitizing agents

A

Product that is applied directly to the surface of exposed dentin to reduce hypersensitivity

25
Potassium salts
only agent theorized to work by depolarization Reduce depolarization of the nerve cell membrane and transmission of nerve impulse
26
fluoride as a desensitizer
Precipitate calcium fluoride (CaF2) crystals within the tubule to decrease lumen diameter, creating barrier to block open tubules Oxalates Glutaraldehyde Calcium phosphate technology ACPc CSP, CPP, TCP (see text) Releases calcium phosphate ions into saliva for deposition of hydroxyapatite (remineralization)
27
Dentifrices
5% potassium nitrate, sodium fluoride, stannous fluoride
28
Gels
: 5000 ppm fluoride prescription product (no abrasives added)
29
mouthrinse
0.63% stannous fluoride (stain potential)
30
Action depends on type of desensitizing accents used
Block dental tubule entrance Intra-tubular mineralization or stimulate to encourage the formation of secondary dentin Interruption of nerve transmission
31
review of dental caries
Single the most common disease of childhood Not self limiting Not amendable to antibiotics Most common dental disease in U.S.
32
Carries process Bacterial bases disease
Mutans streptococci Streptococcus mutans Streptococcus sobrinus Lactobacilli Bacteria metabolize dietary fermentable carbohydrates to produce acid Acids diffuse into tooth structure dissolving calcium and phosphate minerals called demineralization
33
Demineralization
1st stage in caries process Results in greatest loss of calcium and phosphorus in subsurface zone of enamel creating white spot lesions Acidic environment drops pH level from neutral to 5.5pH (critical pH) Requires 30-60 min for oral environment to recover after ingestion of fermentable carbohydrates stops
34
Remineralization
A return to neutral pH and remineralization occurs if… Minerals are available from both saliva and precipitated out of the tooth Presence of topical fluoride Ongoing process of destruction and repair
35
goal of caries risk assessment
early identifications, implement interventions
36
Pre eruptive stage: systemic acquisition
During tooth development, available by way of the blood plasma to surrounding tissues calcification/mineralization stage
37
After calcification is complete
maturation stage: fluoride is absorbed into the outer layers of enamel at this time more than was acquired in underlying areas at mineralization
38
pre-eruptive: tooth calcification or mineralization stage
fluoride incorporates into enamel: hydroxyapatite crystals become fluorapatite crystals incorporated into all parts of the tooth first permanent molars begin to mineralize @ birth fluoride is deposited into DEJ as the tooth forms (dentin absorbs available fl rapidly, sometimes concentration is higher than that in the enamel) excessive fluoride at this stage can cause fluorosis
39
Dental Fluorosis
Associated with cumulative fluoride intake during enamel development Pre-eruptive mineralization stage Dose, duration, timing considerations Excess fluoride inhibits normal activity of ameloblasts, resulting in defective enamel Can range from small white spots to large brown areas
40
Normal BP
Less than 120 and less than 80
41
Elevated bp
120-129 and less than 80
42
High BP hypertension stage 1
130-139
43
High blood pressure stage 2
140 or higher or 90 or high
44
Hypertensive crisis
Higher than 180 and more than 19