PRINCIPLES OF TOOTH PREPARATION EXAM 2025 WITH ACCURATE SOLUTIONS

PRINCIPLES OF TOOTH PREPARATION EXAM 2025
WITH ACCURATE SOLUTIONS




What are the three factors to consider when prepping a tooth? -
Answer ☑️ ✅biologic
mechanical
esthetic


Biological factors include - Answer ☑️
✅conserving tooth
structure
avoiding over contouring
supragingival margins
harmonious occlusion
protecting against tooth fracture


Mechanical factors include - Answer ☑️
✅retention form
resistance form
deformation

, Esthetic factors include - Answer ☑️
✅minimum display of
metal
max thickness of porcelain
porcelain occlusal surfaces
subgingival margins


Is the entire bur typically used when prepping a tooth for a
crown? - Answer ☑️ ✅no - this would create unsupported
enamel. typically use half of the bur


When you use half of the bur, what type of margin is formed? -
Answer ☑️ ✅chamfer


A chamfer margin should not be wider than... - Answer
☑️ ✅half the rotary instrument used to form it


The most suitable instrument for making a chamfer margin is
probably a - Answer ☑️ ✅tapered diamond with a rounded tip