Baeshen Hosam
Department of Orthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia, e-mail:
J Contemp Dent Pract. 2017 Feb 1;18(2):142-146. doi: 10.5005/jp-journals-10024-2005.
Malocclusion is the most common dental anomaly among children and adolescents. Accordingly, this study was conducted to investigate the prevalence of major types of occlusal anomalies in permanent dentition among Saudi Arabian middle school adolescent students seeking orthodontic treatment in Jeddah.
The sample comprised 150 males and 150 females with mean age of 14.25 (±1.09) for both males and females. Data were registered using the Bjork method.
The results of the study showed that postnormal occlusion, prenormal occlusion, and bimaxillary protrusion represented 22, 14.7, and 8.3% of the studied sample respectively. Moderate and severe overjet accounted for 24.7 and 5.7% and for overbite 28 and 13% respectively. Midline deviation was detected in 25.3% of the sample. Mild, moderate, and severe maxillary and mandibular crowding represented 10, 27.3, and 10% and 13, 40, and 9.7% respectively.
The prevalence of occlusal anomalies was 90% and some occlusal anomalies were higher in females.
The prevalence of occlusal anomalies in Saudi Arabian middle school students necessitates the demand for obtaining baseline data for planning orthodontic services.
错牙合畸形是儿童和青少年中最常见的牙齿异常情况。因此，本研究旨在调查在吉达寻求正畸治疗的沙特阿拉伯中学青少年学生恒牙列中主要咬合异常类型的患病率。
样本包括150名男性和150名女性，男性和女性的平均年龄均为14.25岁（±1.09）。数据采用比约克方法记录。
研究结果表明，正常后咬合、正常前咬合和双颌前突分别占研究样本的22%、14.7%和8.3%。中度和重度覆盖分别占24.7%和5.7%，覆牙合分别占28%和13%。在25.3%的样本中检测到中线偏差。轻度、中度和重度上颌及下颌拥挤分别占10%、27.3%和10%以及13%、40%和9.7%。
咬合异常的患病率为90%，且一些咬合异常在女性中更高。
沙特阿拉伯中学生咬合异常的患病率使得有必要获取基线数据以规划正畸服务。
