Bindayel Naif A, Alsultan Maan, Hayek Samar El, Almoammer Khalid
Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia, Phone: +966 114677230, e-mail:
Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia.
J Contemp Dent Pract. 2019 May 1;20(5):603-608.
The primary aim of this study is to compare the chronological age with the dental age of Saudi patients with non-syndromic cleft lip and palate (CLP). The patients' demographics (gender and age group) were analyzed further.
In total, 401 panoramic radiographs were assessed (195 and 206 for the control and the CLP groups, respectively). The subjects' ages ranged from 3 to 17 years, from both genders. The root and crown developmental stages of the mandibular permanent teeth were evaluated using Demirjian's method to calculate dental age. The subjects were separated into three groups according to chronological age. One investigator collected all the data, the intra-class correlation (ICC) coefficient test showed good reliability (0.984). A paired test was then used to determine any statistically significant difference between the mean dental and chronological ages of the control and the cleft samples. The mean difference between chronological and dental ages was then calculated for the control and the cleft groups. A Student's test was then used to compare the two mean differences.
The dental age of normal subjects was ahead of their chronological age by 8.1 months. The CLP group had delayed dental development by 9.6 months ( < 0.01) when compared with normal subjects. The males with CLP had an extended delay in dental development by 6.5 months when compared with females with CLP.
Saudi subjects affected with CLP had significantly delayed dental development when compared with the control group.
Dental age is commonly used to assess dental development in comparison with chronological age. Reporting dental age accuracy for CLP cases would be of value for proper management and diagnosis.
本研究的主要目的是比较沙特非综合征性唇腭裂（CLP）患者的实足年龄和牙齿年龄。进一步分析了患者的人口统计学特征（性别和年龄组）。
共评估了401张全景X线片（对照组195张，CLP组206张）。受试者年龄在3至17岁之间，男女皆有。使用德米尔坚方法评估下颌恒牙的牙根和牙冠发育阶段以计算牙齿年龄。根据实足年龄将受试者分为三组。由一名研究人员收集所有数据，组内相关系数（ICC）检验显示可靠性良好（0.984）。然后使用配对t检验确定对照组和腭裂样本的平均牙齿年龄与实足年龄之间是否存在统计学上的显著差异。然后计算对照组和腭裂组实足年龄与牙齿年龄之间的平均差异。接着使用学生t检验比较这两个平均差异。
正常受试者的牙齿年龄比实足年龄提前8.1个月。与正常受试者相比，CLP组的牙齿发育延迟了9.6个月（P<0.01）。与CLP女性相比，CLP男性的牙齿发育延迟延长了6.5个月。
与对照组相比，患有CLP的沙特受试者牙齿发育明显延迟。
牙齿年龄通常用于与实足年龄比较来评估牙齿发育。报告CLP病例的牙齿年龄准确性对于正确的管理和诊断具有价值。
