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': 'Transverse root fracture Healing can be done by : \nSelect and explain. \nA. Union of segments with hard tissue., B. Bony ingrowth across the fracture line., C. Interposition of connective tissue or fibrous tissue., D. All of the Above.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Healing of Root Fracture\nAccording to Andreasen and Hjorting-Hanson, transverse root fracture healing can be done by any one of the following ways:\n\nUnion of segments with hard tissue\nInterposition of connective tissue or fibrous tissue\xa0(periodontal ligament)\nBony ingrowth across the fracture line\nNon-union with associated interposition of granulation tissue.', 'role': 'assistant'}]