This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
All are the disadvantages of cast restoration except 
Select and explain. 
A. Not conservative, B. Less number of appointments, C. Relies on the bulk of tooth structure for resistance and retention form, D. Necessity for a cementing medium
B: Less number of appointments
Answer: B: Less number of appointments 
Explanation: Diadvantages 

In the restoration of a small carious lesion, an inlay is not very conservative.
Rely on the bulk of the buccal and lingual cusps for resistance and retention form (wedge the cusps).
Number of appointments are more.
Necessity for a cementing medium.

MDS Prep Bytes( Cast Restoration – Inlay)