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': "According to Kim's classiﬁcation of microsurgical cases, which class represents a tooth with an apical lesion and complete denudation of the buccal plate but no mobility: \nSelect and explain. \nA. Class C, B. Class D, C. Class E, D. Class F", 'role': 'user'}, {'content': "Answer: D \nExplanation: Kim's classiﬁcation of microsurgical cases\n\xa0\nClass A:\xa0Represents a tooth with no periradicular lesion,\xa0no mobility, and normal pocket depth. The clinical symptoms have not resolved, though non-surgical options have been exhausted. Clinical\xa0symptoms are the only reason for the surgery.\nClass B: Represents a tooth with presence of a small\xa0periradicular lesion with clinical symptoms. The\xa0tooth has normal periodontal probing depth\xa0and no mobility. The teeth in this class are ideal\xa0candidates for microsurgery.\nClass C: Represents a tooth that has a large periradicular lesion, progressing coronally; without\xa0periodontal pocket and mobility.\nClass D: Represents a tooth that is clinically similar\xa0to that in Class C, but has deep periodontal\xa0pockets.\nClass E: Represents a tooth that has a large periradicular lesion with an endodontic-periodontal\xa0communication to the apex, but no obvious\xa0fracture.\nClass F: Represents a tooth with an apical lesion and complete\xa0denudation of the buccal plate, but no mobility.\nTextbook of Endodontics Nisha GARG 3rd ED", 'role': 'assistant'}]