Murshid Z A, Amin H E, Al-Nowaiser A M
Orthodontic Division, Preventive Dental Science Department, Faculty of Dentistry, King Abdulaziz University.
Community Dent Health. 2010 Dec;27(4):238-41.
To assess the distribution of certain types of occlusal anomalies in a sample of Saudi adolescents aged 13-15 years in Jeddah city.
Across-sectional study.
Clinical examination of Saudi adolescents was carried out in the screening clinics, Faculty of Dentistry, King Abdul-Aziz University. Occlusal anomalies were recorded according to Björk and Co-workers (1964).
1,024 adolescents aged 13-14 years (608 males and 416 females) were randomly selected from ten intermediate schools. Participants were invited to dental school during the "Annual Dental Health Week" as a part of collaborative efforts between King Abdul-Aziz University and Ministry of Education.
Distribution of post-normal occlusion, pre-normal occlusion, bimaxillary protrusion, overjet, overbite, midline deviation and maxillary and mandibular crowding were calculated for the examined subjects.
Only 9% of the examined adolescents had normal occlusion. Post-normal occlusion, pre-normal occlusion and bimaxillary protrusion represented 21%, 15% and 8% of the studied sample respectively. Moderate and severe overjet and overbite accounted for 24% & 5% and 27% & 13%, respectively. Midline deviation was detected in 24% of the students. Mild, moderate and severe maxillary and mandibular crowding represented 9%, 26% & 4% and 11%, 38% & 9%, respectively. All the studied occlusal parameters except bimaxillary protrusion were statistically higher in females.
Ninety one percent of the surveyed subjects exhibited some occlusal anomalies. These anomalies were generally higher among adolescent girls.
评估吉达市13 - 15岁沙特青少年样本中某些类型咬合异常的分布情况。
横断面研究。
在阿卜杜勒 - 阿齐兹国王大学牙科学院的筛查诊所对沙特青少年进行临床检查。根据比约克及其同事（1964年）的标准记录咬合异常情况。
从十所初中随机选取1024名13 - 14岁的青少年（608名男性和416名女性）。作为阿卜杜勒 - 阿齐兹国王大学与教育部合作努力的一部分，参与者在“年度牙齿健康周”期间被邀请到牙科学院。
计算所检查受试者的后正常咬合、前正常咬合、双颌前突、覆盖、覆合、中线偏差以及上颌和下颌拥挤的分布情况。
仅9%的受检青少年咬合正常。后正常咬合、前正常咬合和双颌前突分别占研究样本的21%、15%和8%。中度和重度覆盖分别占24%和5%，中度和重度覆合分别占27%和13%。24%的学生检测到中线偏差。轻度、中度和重度上颌及下颌拥挤分别占9%、26%和4%以及11%、38%和9%。除双颌前突外，所有研究的咬合参数在女性中在统计学上更高。
91%的受调查受试者表现出一些咬合异常。这些异常在青少年女孩中普遍更高。
