Cavity Prep Flashcards
What is a class I cavity?
occlusal surfaces of molars and premolars, buccal pits of molars
what is a class II cavity?
approximal surfaces of molars and premolars
what is a class III cavity?
approximal surfaces of incisors and canines
what is a class IV cavity?
incisal edges of incisors and canines
what is a class V cavity?
cervical margins
disadvantages of blacks classificaiton
does not take into account root surface caries and secondary caries
more tooth tissue indicated to be cut than necessary
what is outline form?
the gaining of access to caries
by direct access/through part of the tooth
what is resistance form?
enabling restoration and remaining tooth to withstand masticatory forces
what angle should the cavity floor be at?
should be at a right angle to the direction of occlusal forces
what is retention form?
retaining material in the cavity
by grooves, undercuts/occlusal keys
what comes after retention form?
treatment of residual caries
where should caries be cleared first?
the EDJ then the base.
soft dentine? firm and stained dentine?
soft dentine is infected and should be removed
firm but stained dentine can be left
what is cavity debridement?
washing and drying to remove the debris
what is a line angle?
where two lines meet
