Guimarães Cabral Luiz Antonio, Firoozmand Leily Macedo, Dias Almeida Janete
Department of Biosciences and Oral Diagnosis, São José dos Campos Dental School, São Paulo State University - UNESP, São José dos Campos, São Paulo, Brazil.
Med Oral Patol Oral Cir Bucal. 2008 Jan 1;13(1):E77-80.
Odontogenic anomalies can occur as a result of conjoining or twinning defects. These include fusion, gemination and concrescence. This article presents two case reports of double teeth. In the first case reported, a 4 -year-old white boy presented primary double teeth associated to the absence of the right permanent mandibular lateral incisor. In the second case, a 5-year-old white girl had a family history of anomaly in primary dentition. The girl and her mother presented double teeth in the primary dentition. Her mother showed hypodontia in the permanent dentition. Extra and intra oral clinical examination was made in both cases. Radiographic analyses showed the involvement of the permanent tooth. Authors conclude that double teeth in primary dentition have to be carefully analysed as they may be associated with anomalies in the permanent dentition. Correct diagnosis of the condition implicates in a better prognosis for the patient.
牙源性异常可因联合或孪生缺陷而发生。这些包括融合、双生和粘连。本文介绍了两例双牙的病例报告。在第一例报告中，一名4岁白人男孩出现乳牙双牙，同时右侧下颌恒侧切牙缺失。在第二例中，一名5岁白人女孩有乳牙列异常的家族史。该女孩及其母亲乳牙列均有双牙。她的母亲恒牙列有牙量不足。两例均进行了口内和口外临床检查。影像学分析显示恒牙受累。作者得出结论，乳牙列中的双牙必须仔细分析，因为它们可能与恒牙列异常有关。对该病症的正确诊断对患者的预后较好。
