Arrange the following preparations in increasing order of their resisting area
Correct Answer: C < B < A
Description: The resisting area decreases as the preparation taper increases.
For a cylinder with no taper, the resisting area would cover half the axial walls (A).
For an deafly-tapered tooth preparation, the resisting area covers somewhat less than half the axial walls (B).
An over-tapered (20 degrees) preparation has only a small resisting area near the occlusal surface (C).
Category:
Dental
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