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作者报道了一例牙弓4个象限内均存在牙内陷畸形牙的罕见患者。 患者为20岁男性,主诉右侧下颌后牙区疼痛,口腔检查未见龋坏牙。X线片显示右侧下颌第二前磨牙牙内陷,根尖周有X线透过性阴影,牙髓活力测定为阴性,其余牙则正常。系列X线照片显示:双侧上颌侧切牙及下顿第一、二前磨牙均为牙内陷畸形牙。患者无外伤史,因而确定右侧下颌第二前磨牙根尖周炎为牙内陷引起.遂为患者做了根管治疗,其余畸形牙亦做了预防性治疗。8个月随诊未出现任何症状,X线照片显示
The authors report a rare case of tooth invagination in four quadrants of the dental arch. The patient, a 20-year-old man, complained of pain in the posterior mandibular area of the right jaw and no dental caries in the mouth. X-ray showed the right mandibular second premolar tooth invagination, periapical X-ray translucent shadow, pulp vitality was determined as negative, the remaining teeth are normal. Series X-ray shows: bilateral maxillary lateral incisors and the next Dayton first and second premolar teeth are tooth dentures. Patients with no history of trauma, and thus determine the right mandibular second premolar periapical periodontitis caused by dental retraction .There was a root canal treatment for patients, and the remaining deformity teeth have also done preventive treatment. 8 months follow-up did not show any symptoms, X-ray showed