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 may be a consequence of occlusal trauma on implants? \nSelect and explain. \nA. Widening of the periodontal ligament., B. Soft-tissue sore area around the tooth., C. Bone loss., D. All of the above.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Bone loss is usually seen on the most coronal aspect of the implant in the form of a wedge. There is no periodontal ligament on implants, so there is no feeling of soreness.', 'role': 'assistant'}]