dentinal hypersensitivity Flashcards
SHORT, SHARP PAIN WHEN STIMULUS REACHES
EXPOSED DENTIN
thermal
tactile
chemical
evaporative
Organic Components
Inorganic Components
Dentinal Tubules
dentin
Stimuli are transmitted to the pulp surface due to
the movement of fluid or semi-fluid within open
dentinal tubules
brannstrom’s hydrodynamic theory
ETIOLOGY OF DENTINAL HYPERSENSITIVITY
- gingival recession
- enamel loss
(both multiple factors)
enamel loss:
1
2
3
4
- abrasion
- attrition
- abfraction
- erosion
-anatomy of labial plate
-periodontal disease
-frenum involvement
-toothbrush abrasion
-poor oral hygiene
-inadequate attached gingiva
-periodontal surgery
-iatrogenic loss
-aggressive scaling/ root planing
-acute or chronic trauma
-excessive oral hygiene
gingival recession
common factors in erosion
acid reflux disease (lingual surfaces)
bulimia
frequency of acidic drinks
frequency of acidic foods
erosion occurs in all age ranges and higher incidence in
20-40 year olds
female more prone
common site of occurrence for erosion
buccal and labial surfaces
areas effected with erosion
canine/premolar
incisors
2nd pre-molars and molars
(enamel/dentin) more easily abrasive
dentin
???idk worded weird
teeth whitening in office
- varnishes/precipitates
- primers
- placement of restorations
-composite resin-based
-restorations with glass ionomers
treatment options for whitening at home
- dentifrices, gels, rinses
mode of action:
-depolarizes nerve endings
-tubule occlusion
in office treatment
significantly reduce hypersensitivity immediately after treatment
reduces dentin permeability
glutaraldehyde/HEMA based agents
in office treatment
forms a barrier over exposed dentin
relief provided by calcium fluoride deposits
5% sodium fluoride varnish
caries prevention and hypersens helper
in office treatment/at home
replaces calcium and phosphate ions
MI paste
recaldent(CPP-ACP)
casein phosphopeptide- amorphous calcium phosphate
how to use MI paste at home
apply with prophy cup in office??
at home use- applied after brushing teeth
Interference with neural transmission (tooth paste):
dentifrices containing 5% potassium nitrate works by
penetrating the length of the tubule to depolarize the nerve endings
-frequent and regular application needed (show results after 2-3 weeks)
tubule occlusion (tooth paste):
main active ingredients is
fluoride
- stannous fluoride- most commonly used
- arginine and calcium carbonate
-hydroxyapatite
prescription strength fluoride toothpaste
colgate prevident
5,000ppm (1.1% sodium fluoride)
