Ogunyinka A
Eastman Dental Institute, London.
Dent Update. 1996 Mar;23(2):64, 68.
This case report describes a disfiguring hypoplastic maxillary right central incisor in a 20-year-old man. The maxillary primary central had been traumatized in a fall, which had resulted in its intrusion with subsequent episodes of pain and swelling around the tooth. The tooth had been extracted several years later. When the permanent central incisor erupted, it was grossly hypoplastic. The possible causes of this defect are discussed.
本病例报告描述了一名20岁男性上颌右侧中切牙发育不全并伴有面部畸形的情况。上颌乳中切牙曾因摔倒受过外伤，导致牙齿嵌入，随后牙齿周围出现疼痛和肿胀。几年后该乳牙被拔除。当恒中切牙萌出时，明显发育不全。文中讨论了这种缺陷的可能原因。
