Cavity Preparation Flashcards
What determines cavity design?
structure and properties of dental tissues, the disease, properties of restorative materials
When should you intervene?
When the lesion is cavitated, when the patient cannot access the lesion for prevention
What is the first principle of cavity design?
Identify and remove carious enamel
What is the second principle of cavity design
Identify the maximal extent of the lesion at the amelodentinal junction and smooth enamel margins
What is the third principle of cavity design
Progressively remove peripheral caries in dentine circumferentially
What is the fourth principle of cavity design?
Remove caries from the pulpal floor
What is the fifth principle of cavity design?
Outline form modification including enamel finishing and requirements of the restorative material
What is the sixth principle of cavity design?
Internal design modification including internal line and point angles
What is the relationship between a high configuration factor and polymerization contraction stress
Increased polymerization contraction stress which could cause fractures
What is the relationship between a low configuration factor and polymerization contraction stress
Reduced polymerization contraction stress which does not cause fractures
