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': 'The preferred material for repair of fractured denture base is: \nSelect and explain. \nA. Chemically cured resin, B. Heat cured resin, C. Light cured resin, D. Vinyl resin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: REPAIR OF ACRYLIC RESIN DENTURES\nAn acrylic denture fractured in service can be repaired. Repair resins maybe:\n\nHeat cure\xa0(OR)\nSelf cure\n\nHeat cured resin\nThese resins are cured at 74oC for 8 hours or more. The use of a heat-cured resin will tend to warp the denture during processing.\nSelf-cured resin\nAlthough the repair with a self-cured resin invariably has a lower transverse strength than that of the original heat-cured denture base resin, self-cured resins are usually preferred because warpage is insignificant as curing is done at room temperature.\nReference: Mannapallil Basic SCIENCE OF DENTAL MATERIALS, 4th ed page no 561', 'role': 'assistant'}]