MJDF Part 1 — Membership Of The Joint Dental Faculties

What are the essential features of an ideal Class II cavity preparation for a composite resin restoration?

Flat floor, undercuts for retention, 90-degree cavosurface angles, and maximum extension Conservative preparation following the extent of caries, rounded internal line angles, enamel bevels at the occlusal margin (no bevel gingivally), adequate access for placement and curing, and a clear gingival margin for matrix adaptation No cavity preparation is needed — composite bonds to any surface Sharp internal line angles, dovetail retention, and extension for prevention to all fissures

Correct Answer:

Conservative preparation following the extent of caries, rounded internal line angles, enamel bevels at the occlusal margin (no bevel gingivally), adequate access for placement and curing, and a clear gingival margin for matrix adaptation

Access more questions from this quiz

Continue to MJDF Part 1 — Membership of the Joint Dental Faculties for more practice questions and the full quiz experience.

Access More Questions