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': 'Which of the following type of pontic is best suited for long term provisional restoration: \nSelect and explain. \nA. Metal ceramic pontic., B. All- Metal pontic., C. Resin veneered pontic., D. Any of the above.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: • Less strength compared to all metal pontics\n• Poor abrasion resistance\n• Staining at the resin metal interface\n• Permeable to oral fluids\nBecause of all these disadvantages, it cannot be used as a permanent restoration.', 'role': 'assistant'}]