Wyne Amjad Hussain
Department of Pediatric Dentistry at the King Saud University College of Dentistry in Riyadh, Kingdom of Saudi Arabia.
J Contemp Dent Pract. 2004 Feb 15;5(1):42-52.
The purpose of the study was to determine the bilateral occurrence of dental caries in 12-13 year old and 15-19 year old Saudi school children. There were 673 children (324 boys and 349 girls) in the 12-13 year old group and 734 children (399 boys and 335 girls) in the 15-19 year old group with mean ages of 13.1 (SD 0.7) years and 16.4 (SD 1.2) years, respectively. All children were examined for dental caries using the World Health Organization (WHO) criteria for the diagnosis of dental caries. There were no significant differences between the caries prevalence of right and left sides for most teeth at the significance level of 0.05. Among 12-13 year old children, maxillary first molars (86.5%), mandibular central incisors (86.2%), and mandibular first molars (86.0%) showed very high (p <.01) caries bilaterality. Among the 15-19 year old children, mandibular first molars (91.6%), maxillary first molars (87.9%), and mandibular second molars (79.9%) showed very high (p <.01) caries bilaterality. The conditional probability for bilateral occurrence of caries was highest in first molars followed by second molars and central incisors. The bilateral caries occurrence and conditional probability for bilateral caries occurrence were significantly higher (p <.05) in 15-19 year old children as compared to 12-13 year old children. It was concluded caries bilaterality and the conditional probability for bilateral caries occurrence was high in the study population.
该研究的目的是确定12至13岁以及15至19岁沙特学龄儿童龋齿的双侧发生率。12至13岁组有673名儿童（324名男孩和349名女孩），15至19岁组有734名儿童（399名男孩和335名女孩），平均年龄分别为13.1（标准差0.7）岁和16.4（标准差1.2）岁。所有儿童均按照世界卫生组织（WHO）的龋齿诊断标准进行龋齿检查。在0.05的显著性水平下，大多数牙齿的左右两侧龋齿患病率无显著差异。在12至13岁的儿童中，上颌第一磨牙（86.5%）、下颌中切牙（86.2%）和下颌第一磨牙（86.0%）的双侧龋齿发生率非常高（p<.01）。在15至19岁的儿童中，下颌第一磨牙（91.6%）、上颌第一磨牙（87.9%）和下颌第二磨牙（79.9%）的双侧龋齿发生率非常高（p<.01）。龋齿双侧发生的条件概率在第一磨牙中最高，其次是第二磨牙和中切牙。与12至13岁的儿童相比，15至19岁儿童的双侧龋齿发生率和双侧龋齿发生的条件概率显著更高（p<.05）。研究得出结论，在研究人群中，龋齿双侧发生率和双侧龋齿发生的条件概率较高。
