You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The preferred material for repair of fractured denture base is: and explain in detail?
REPAIR OF ACRYLIC RESIN DENTURES
An acrylic denture fractured in service can be repaired. Repair resins maybe:

Heat cure (OR)
Self cure

Heat cured resin
These 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.
Self-cured resin
Although 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.
Reference: Mannapallil Basic SCIENCE OF DENTAL MATERIALS, 4th ed page no 561