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': 'Your patient is 4 years old. The maxillary right primary central incisor was traumatically avulsed 60 minutes ago. What is the treatment of choice? \nSelect and explain. \nA. Replant, splint, primary endo, B. Replant, splint, formocresol pulpotomy, C. Replant, no splint, primary endo, D. None of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Replanting primary teeth has a poor prognosis, but could be considered if within 30 minutes. A primary tooth that is replanted will likely require splinting. The patient should be placed on antibiotics, restricted to a soft diet, and have a primary endodontic procedure accomplished.', 'role': 'assistant'}]