Department of Orthodontics, Faculty of Dentistry, University of Ataturk, Erzurum, 25240, Turkey.
Med Oral Patol Oral Cir Bucal. 2010 Jul 1;15(4):e575-8. doi: 10.4317/medoral.15.e575.
The objectives of the present study were to investigate the prevalence and characteristics of supernumerary teeth and evaluate the associated pathologies and treatment protocol in a Turkish patient population.
A retrospective study was performed using full-mouth periapical and panoramic radiographs of 3491 patients (2146 females and 1345 males) ranging in age from 12 to 25. For each patient with supernumerary teeth we recorded the demographic variables (including age, sex), number, location, position, type, and morphology of supernumerary teeth, associated pathologies or complications, and whether any treatment has been carried out. The Pearson chi-squared test was used to determine potential differences in the distribution of supernumerary teeth when stratified by gender.
Supernumerary teeth were detected in 42 subjects (1.2%), of which 27 were males and 15 were females with a 1.8:1 male female ratio (p<0.001). The most commonly found supernumerary teeth were mesiodens (31.3%) followed by premolar (25.0%), lateral (22.9%), distomolar (14.5%), paramolar (4.2%), and canine (2.1%). Of the 48 supernumerary teeth examined, 50.0% (n=24) were conical, 81.3% (n=39) were in a vertical position, and 20.8% (n=10) were erupted. Supernumerary teeth caused rotation or displacement of the adjacent teeth in 14 cases, and the impaction of the permanent teeth in 8 cases.
The prevalence of supernumerary teeth in our series was found to be 1.2%, the most frequent type being mesiodens. Rotation or displacement of permanent teeth was the most frequent complication caused by supernumerary teeth.
本研究的目的是调查土耳其患者群体中超生牙的流行率和特征，并评估其相关病变和治疗方案。
使用 3491 名年龄在 12 至 25 岁的患者的全口根尖和全景片进行回顾性研究（2146 名女性和 1345 名男性）。对于每一位有多生牙的患者，我们记录了人口统计学变量（包括年龄、性别）、多生牙的数量、位置、位置、类型和形态、相关病变或并发症，以及是否进行了任何治疗。使用 Pearson χ2 检验来确定按性别分层时多生牙分布的潜在差异。
在 42 名患者（1.2%）中发现了多生牙，其中 27 名男性和 15 名女性，男女比例为 1.8:1（p<0.001）。最常见的多生牙是中切牙（31.3%），其次是前磨牙（25.0%）、侧牙（22.9%）、远中磨牙（14.5%）、副磨牙（4.2%）和尖牙（2.1%）。在检查的 48 颗多生牙中，50.0%（n=24）为圆锥形，81.3%（n=39）为垂直位置，20.8%（n=10）为萌出。14 例多生牙导致邻牙旋转或移位，8 例导致恒牙阻生。
在我们的研究中，多生牙的患病率为 1.2%，最常见的类型是中切牙。多生牙最常见的并发症是恒牙旋转或移位。
