10 Questions
What is the correct sequence of preparations in occlusal rest seats?
Proximal preparation followed by occlusal rest seat preparation
What happens when proximal preparation follows occlusal rest seat preparation?
The marginal ridge becomes too low and too sharp
Why is it often impossible to correct the rest preparation?
Because the center of the floor of the rest seat is too close to the marginal ridge
What is the consequence of not following the correct sequence of preparations?
The tooth may be damaged irreparably
What is the relationship between proximal preparation and occlusal rest seat preparation?
Proximal preparation always precedes occlusal rest seat preparation
What is the primary purpose of inclining the floor of the rest seat?
To direct forces along the long axis of the tooth
What is the significance of rounding the proximal edge of the rest seat?
To reduce the risk of torquing the abutment tooth
Why is the 3:01PM Mon 13 May 6◆T・5照 type of rest not commonly used?
It is not very esthetic
What is the importance of avoiding a line angle at the junction of the axial wall and the floor?
To avoid a weaken point in the rest
What is the purpose of extending the floor of the rest seat slightly onto the labial aspect of the tooth?
To allow for a more even distribution of forces
Learn about the correct sequence of preparing occlusal rest seats in dentistry. Understand the importance of proximal preparation preceding occlusal rest seat preparation to ensure proper marginal ridge formation.
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