School of Dentistry, Pontifical Catholic University of Paraná, Curitiba, Paraná, Brazil.
Am J Orthod Dentofacial Orthop. 2013 Mar;143(3):421-5. doi: 10.1016/j.ajodo.2012.01.020.
Dentin dysplasia is a genetic disorder of the teeth that affects the dentin and the pulp. Type I is sometimes called "rootless teeth," because of the loss of organization of the root dentin, which often leads to a shortened root length. The purpose of this article was to present a rare clinical case of a girl who was diagnosed with dentin dysplasia type I when she was referred for an orthodontic evaluation. Panoramic and periapical radiographs showed defective root formation and areas with periapical radiolucencies in several teeth. Her Angle Class I malocclusion was successfully treated, providing esthetic and functional results, without clinical symptoms or signs of periodontitis or odontogenic infections.
牙本质发育不全是一种影响牙本质和牙髓的牙齿遗传性疾病。I 型有时被称为“无根牙”，因为其根部牙本质的组织丧失，这通常会导致牙根长度缩短。本文的目的是介绍一个罕见的临床病例，一名女孩因正畸评估而被诊断为 I 型牙本质发育不全。全景和根尖片显示多个牙齿的牙根形成缺陷和根尖周透光区。她的安氏 I 类错颌畸形得到了成功的治疗，提供了美观和功能效果，没有牙周炎或牙源性感染的临床症状或体征。
