Chapter 35- Sealants Flashcards
Purposes of acid etchant
to produce micropores in the enamel, which allows liquid resin to penetrate into the micropores to create a bond
advantages of autopolymerized or two step sealant material
no curing light needed
advantages of photopolymerized or light cured sealant material
no mixing required, increased working time
disadvantages of autopolymerized or two step sealant material
there is mixing required and the working time is limited
disadvantages of photopolymerized or light cured sealant material
extra costs and disinfection time required, and protective glasses must be worn
purpose of filler in sealant material
to increase bond strength and resistance to abrasion and wear
contraindications for sealant placement
radiographic evidence of adjacent proximal caries, pit and fissures are self cleansing and low caries risk, tooth not completely erupted, primary tooth near exfoliation
etchant solution is made up of
phosphoric acid
