Dinkar A D, Dawasaz A A, Shenoy S
Department of Oral Medicine, Diagnosis and Radiology, Goa Dental College and Hospital, Goa, India.
J Indian Soc Pedod Prev Dent. 2007 Mar;25(1):56-9. doi: 10.4103/0970-4388.31994.
Dentigerous cyst is a developmental odontogenic cyst, which apparently develops by accumulation of fluid between reduced enamel epithelium and the tooth crown of an unerupted tooth. When observed with erupted and complete dentition the diagnosis is a surprise; as about 95% of dentigerous cysts involve the permanent dentition and only 5% are associated with supernumerary teeth. The usual age of clinical presentation of dentigerous cyst due to supernumerary tooth is during the first four decades. Mesiodens is a supernumerary tooth situated between the maxillary central incisors. More frequently the mesiodens occurs unilaterally, but it may also be bilateral, while three or more supernumerary teeth in the median region of the palate are more rarely found. We report a rare case of dentigerous cyst in association with multiple mesiodens in a 14-year-old female patient.
含牙囊肿是一种发育性牙源性囊肿，显然是由于在缩余釉上皮与未萌出牙的牙冠之间积液而形成。当在恒牙列完整且牙齿已萌出时观察到这种情况，诊断往往令人意外；因为约95%的含牙囊肿累及恒牙列，只有5%与多生牙有关。因多生牙导致的含牙囊肿临床出现的常见年龄在最初的四十年内。正中牙是位于上颌中切牙之间的多生牙。正中牙更常单侧出现，但也可能双侧出现，而在腭部正中区域有三颗或更多多生牙的情况则较为罕见。我们报告了一例罕见的14岁女性患者含牙囊肿合并多发正中牙的病例。
