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1 病例摘要 患者 于××,女性,25岁。于1996年2月来我科就诊,主诉左侧下后牙咀嚼时有疼痛感。检查:口腔内未见龋坏牙,牙髓活力测试均为阴性,左侧下(牙合)第2磨牙叩诊阳性。X线片显示:左侧下(牙合)第2磨牙
1 case summary patients in × ×, female, 25 years old. In February 1996 to our department, complained of the left lower back teeth when chewing pain. Check: No dental caries in the oral cavity, endodontic test were negative, the left under (occlusal) 2nd molars percussion positive. X-ray shows: the left under the occlusal second molar