autumn midterm; sealants and composite Flashcards
what are the steps to applying sealant
rubber dam then etchant (phosphoric acid) - to grooves.
after etchent is applied (wait 15 seconds) then rinse and dry it.
-put some sealant on paper pad then apply sealant with its own applicator tip to the grooves. cure for 20 seconds (?)
how do you apply scotchbond
apply to dentin, blow thin with air, then cure for 20 seconds
how do you apply composite to a minimallyinvasive prep
put on paper with gun. use holenback to scoop and put into the pits only. then light cure for 40 seconds.
what are the steps for minimally invasive composite prep
- drill pits/ grooves w half of quarter round bur
- etch into all the grooves, extend far. wait 15 seconds then rinse and dry
- scotch bond universal bonding agent- apply along prep, blow thin with air. then cure for 20 seconds.
- composite- with gun place on paper. scoop with holenback and place in pits. light cure 40 seconds.
- place flowable composite with an explorer into grooves , light cure for 40 seconds. `
what are the steps to finishing composite
- contour - define anatomy and remove flash
- check occlusion and recontour
- check for flash again
(have to check for flash and occlusion AGAIN when polishing!)
what is finishing
process of contouring final shape of restoration, removing flash, removing major surface imperfections to a smooth surface..
what is polishing
process of bringing matte, smooth surface to a high shine
what is the purpose of finishing and polishing
- getting proper occlusion
- esthetics/proper anatomy and shape
- soft tissue tolerance
- resists biofilm plaque accumulation
what are carbides for? what are flutes
larger reduction of material, defining anatomy. flutes– more aggressive type of carbide
what are diamonds for
largerremoval of material
what are the brushes used
aromatic polyamide impregnated with ilicone carbide. need to be used on already smooth surfaces. apply pressure
whats the #12 blade for
interproximal carver
