F Pros Flashcards
Indications
PRIRA
PRIRA
Protect tooth structure Reestablish occ/function Insufficient coronal for rest Replace missing Aesthetics
Tooth Prep
PRSMP
PRSMP
Preserve tooth structure Retention and resistance Structural surability Marginal integrity Preserve periodontium
Resistance and Retention
Convergence angle 6-8° taper. More parallel more RES but unable to get parallel without undercuts.
Crown Height - increase surface area, occ-gingival length=smaller diameter=res tipping.
Retraction cords
Smaller bleed and moisture control
Larger lateral displacement of Gingiva
Temp Crown
Protect pulp and prep, decrease sensititvy, prevent supraocc of opp, stop drifting/tipping, function, aesthetics
Bur Kits
L10 proximal clearance
Horico 239 palatal concave reduction
Komet 8877 chamfer margins
Teknik 847 flat
What makes good impression
Good wetting, good elasticrecovery, good tear strength,
dimensionally stable, accurate detail