Colak Hakan, Aylıkçi Bahadir Ugur, Keklik Hakan
Department of Restorative Dentistry, Faculty of Dentistry, Kırıkkale University, Kırıkkale, Turkey.
J Nat Sci Biol Med. 2012 Jul;3(2):192-4. doi: 10.4103/0976-9668.101915.
Dens evaginatus (DE) is an odontogenic developmental anomaly that can be defined as a tubercle or protuberance from the involved surface of the affected tooth consisting of an outer layer of enamel, a core of dentin, and may contain a slender extension of pulp tissue. Early diagnosis and management of DE is important in order to prevent occlusal interference, compromised esthetics, carious developmental grooves, periodontal problems due to excessive occlusal forces, or irritation of the tongue during speech and mastication. DE usually affects the mandibular second premolars as an accessory cusp or a protuberance between the buccal and lingual cusps. Reports of DE on maxillary premolar are rare in the literature. We report one such extremely rare case of DE on maxillary first premolar.
畸形中央尖（DE）是一种牙源性发育异常，可定义为患牙受累表面的结节或突起，由外层釉质、牙本质核心组成，可能还包含细长的牙髓组织延伸。早期诊断和处理DE很重要，以防止咬合干扰、美观受损、龋坏发育沟、因过大咬合力导致的牙周问题，或在说话和咀嚼时刺激舌头。DE通常以下颌第二前磨牙作为副尖或颊尖与舌尖之间的突起出现。上颌前磨牙出现DE的报道在文献中很少见。我们报告了一例上颌第一前磨牙出现DE的极其罕见的病例。
