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
[{'content': 'All are the disadvantages of cast restoration except \nSelect and explain. \nA. 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', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Diadvantages\xa0\n\nIn the restoration of a small carious lesion, an inlay is not very conservative.\nRely on the bulk of the buccal and lingual cusps for resistance and retention form (wedge the cusps).\nNumber of appointments are more.\nNecessity for a cementing medium.\n\nMDS Prep Bytes( Cast Restoration – Inlay)', 'role': 'assistant'}]