Geist J R
Department of Oral Medicine/Periodontics, University of Detroit School of Dentistry, Mich.
Oral Surg Oral Med Oral Pathol. 1989 May;67(5):628-31. doi: 10.1016/0030-4220(89)90287-9.
Dens evaginatus is a disturbance in tooth formation that produces a tubercle of hard tissue on the occlusal surfaces of the teeth. This unusual condition occurs most frequently in Oriental persons and is relatively uncommon in the western hemisphere. The tubercle, which often contains pulp tissue, can cause alterations in occlusion; pulpal and periapical inflammation are common sequelae of attrition or fracture of the evagination. Although teeth with necrotic pulps require extraction or endodontic therapy, prophylactic pulp capping is recommended for vital teeth. This case report of a 24-year-old Chinese-Canadian woman with three affected teeth demonstrates the clinical consequences of dens evaginatus.
牙内陷是一种牙齿发育障碍，在牙齿的咬合面上产生硬组织结节。这种异常情况最常发生在东方人身上，在西半球相对少见。该结节通常含有牙髓组织，可导致咬合改变；磨损或牙内陷骨折后，牙髓和根尖周炎症是常见的后遗症。虽然牙髓坏死的牙齿需要拔除或进行根管治疗，但对于活髓牙，建议进行预防性盖髓。这份关于一名患有三颗患牙的24岁华裔加拿大女性的病例报告展示了牙内陷的临床后果。
