what is the optimal level in drinking water?
what is a common cause of fluorosis in children? (oh that looks yummy I think I shall eat it?)
eating toothpaste (under six years)
what type of fluoride has the largest benefits?
what is the neutral pH of the mouth?
what pH does the tooth minerals dissolve and cavities start?
at what pH does fluorapatite dissolve?
t/f fluoride remains in saliva for several hours
what are two common in office fluoride products?
1.23% APF gel or foam
what are three prescription at home use fluoride products?
1.1% NaF gel or toothpaste
.4% SnF2 gel
.2% NaF rinse
what are three OTC home use fluoride products?
toothpaste .24% NaF
toothpaste .8% MFP
what are two forms of systemic fluoride?
Rx supplements (tablets, drops, lozenges)
in office topical fluoride should be applied how often?
twice a year
if in office topical fluoride is applied twice a year how much will it reduce decay?
t/f clorhexidine can cause black stain, calculus formation and affects to taste
false BROWN stain
sealing _____ caries reverses caries to inactive in ___%
t/f you can seal if the caries is into the dentin
FALSE CANNOT SEAL!
what teeth are the most susceptible to pit/fissure caries?
mandibular 1st and 2nd molars
what teeth most commonly lose the sealant? why?
t/f you seal all molars no matter what
false do not seal if they don't have deep pits and fissures
the light cure system leaves a ______ ______ layer on the surface of the filling that does NOT _______
oxygen inhibiting layer
t/f oxygen in the air inhibits the set of the resin on the surface of a sealant
what teeth are most commonly have moisture failure?
what is the worst type of sealant failure?
what are two contraindications to sealants?
highly coalesced pit and fissures
what are four causes of root sensitivity (red ones only and HINT HINT can be fixed with desensitizing agent)
scaling and root planing
what are two ways to fix root sensitivity?
what is the most common desensitizing agent? and how long does it take until you get relief?
2 to 3 weeks
t/f the desensitizing agent chemical passes through the tubules to act directly on the nerve
what are three things you can treat that cause sensitivity (in red only)
hot and cold extremes
exposed dentinal tubules
what is the thickness ofa professionally made sports guard?
2mm thick or 4 mm thick
for heavy contact sports how thick should the sports guard be?
what % of energy is absorbed from a traumatic blow to the mouth?
where does the a mouth guard cover?
cover maxillary teeth and bone
t/f a mouth guard occasionally covers both arches
t/f a mouth guard can protect lips from lacerations
where are hard acrylic mouth guards made?
in a dental laboratory
t/f there is more chair time to adjust hard acrylic mouth gaurds tahn thermoplastic sheets of polyethylene material
what are three important things to do for maintenaance of a mouth guard?
store in hard container
no alcohol (no mouthwash) no bleach
bleaching passes through the _____- and oxidizes pigments in ____-
what colors are often extrinsic stain?
what colors are easier to bleach?
what color is often intrinsic stain?
blue gray/ black
what colors is harder to bleach
______ is often added to bleaching materials to decrease tooth sensitivity?
what chemicals for the tissues cause staining of the dentin?
what type of bleaching is termed walking bleach?
what is amosan?
sodium peroxyborate monohydrate + 30% hydrogen peroxide sealed into pulp
what type of bleaching is in custom formed plastic trays worn for 30 minutes or overnight twice daily for two weeks
what should be done if patients have decay or leaking restoartions when trying to bleach? why?
must be replaced to prevent bleach from entering dentinal tubules
preventive and bleaching materials