Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Atatürk University, Erzurum, Turkey.
Med Oral Patol Oral Cir Bucal. 2011 Jul 1;16(4):e522-5.
The objective of this study was to estimate the incidence of non-syndromic supernumerary premolars, to classify them and to identify the complications related to them.
This retrospective cohort study was composed of 8400 panoramic radiographs of patients who presented at our Oral and Maxillofacial Surgery Services from January 1998 to May 2008. The number of supernumerary premolars, their localization, the ages and the sex of the patients, any associated complications and treatment methods were estimated.
A total of 20 supernumerary premolar teeth were found in 10 of the 8400 patients (0.24%) with 7 of those being females and three males. Three patients had pain localized to the mental foramen and one patient had resorption in the root of the adjacent tooth. In these series, 18 supernumerary premolar teeth were extracted. In contrast with previous studies, this study suggested that this phenomenon is more frequently encountered in females than in males. The presence of complications associated with the supernumerary premolars in 4 patients necessitated consideration of surgical intervention as a treatment choice for these teeth. Otherwise, they should be kept under observation.
本研究旨在评估非综合征性额外前磨牙的发生率，对其进行分类，并确定与之相关的并发症。
这是一项回顾性队列研究，纳入了 1998 年 1 月至 2008 年 5 月期间在我们口腔颌面外科就诊的 8400 例全景片患者。评估了额外前磨牙的数量、位置、患者的年龄和性别、任何相关并发症以及治疗方法。
在 8400 例患者中有 10 例（0.24%）发现了 20 颗额外前磨牙，其中 7 例为女性，3 例为男性。3 例患者出现颏孔区疼痛，1 例患者出现邻牙牙根吸收。在这些患者中，18 颗额外前磨牙被拔除。与以往的研究相比，本研究表明，这种现象在女性中比男性更常见。4 例患者的额外前磨牙存在并发症，需要考虑手术干预作为这些牙齿的治疗选择。否则，应进行观察。
