INBDE (Integrated National Board Dental Examination) Practice Exam

What is the single most important predictor of clinical success of a cast post and core?

1. Amount of cement

2. Type of core material

3. Amount of remaining coronal tooth structure

4. Shape of the post

The correct answer is: Amount of remaining coronal tooth structure

The single most important predictor of clinical success of a cast post and core is the amount of remaining coronal tooth structure. This is because the remaining tooth structure provides stability and strength for the crown and core to adhere to, ensuring a strong and long-lasting restoration. Option A is incorrect because while the amount of cement used in the procedure is important, it is not the most important factor in determining the success of the restoration. Option B is incorrect because while the type of core material used may play a role in the strength and longevity of the restoration, it is not the single most important predictor of success. Option D is also incorrect because while the shape of the post may impact the stability of the restoration, it is ultimately the remaining tooth structure that is the main determining factor in its success.