Felemban Nayef H
Orthodontic Department, Faculty of Dentistry, Taif University, Saudi Arabia.
Acta Stomatol Croat. 2017 Dec;51(4):283-289. doi: 10.15644/asc51/4/2.
The aim of the present study was to compare the cervical vertebra maturation stages method and dental maturity using tooth calcification stages.
The current study comprised of 405 subjects selected from orthodontic patients of Saudi origin coming to clinics of the specialized dental centers in western region of Saudi Arabia. Dental age was assessed according to the developmental stages of upper and lower third molars and skeletal maturation according to the cervical vertebrae maturation stage method. Statistical analysis was done using Kruskal-Wallis H, Mann-Whitney U test, Chi-Square test; t-test and Spearman correlation coefficient for inter group comparison.
The females were younger than males in all cervical stages. The CS1-CS2 show the period before the peak of growth, during CS3-CS5 it's the pubertal growth spurt and CS6 is the period after the peak of the growth. The mean age and standard deviation for cervical stages of CS2, CS3 and CS4 were 12.09 ±1.72 years, 13.19 1.62 and 14.88 1.52 respectively. The Spearman correlation coefficients between cervical vertebrae and dental maturation were between 0.166 and 0.612, 0.243 and 0.832 for both sexes for upper and lower third molars. The significance levels for all coefficients were equal at 0.01 and 0.05.
The results of this study showed that the skeletal maturity increased with the increase in dental ages for both genders. An early rate of skeletal maturation stage was observed in females. This study needs further analysis using a larger sample covering the entire dentition.
本研究的目的是比较颈椎成熟阶段法和使用牙齿钙化阶段的牙齿成熟度。
本研究包括从沙特阿拉伯西部地区专门牙科中心诊所就诊的沙特裔正畸患者中选取的405名受试者。根据上下第三磨牙的发育阶段评估牙齿年龄,并根据颈椎成熟阶段法评估骨骼成熟度。使用Kruskal-Wallis H检验、Mann-Whitney U检验、卡方检验、t检验和Spearman相关系数进行组间比较的统计分析。
在所有颈椎阶段,女性比男性年轻。CS1-CS2显示生长高峰期之前的时期,CS3-CS5期间是青春期生长突增期,CS6是生长高峰期之后的时期。CS2、CS3和CS4颈椎阶段的平均年龄和标准差分别为12.09±1.72岁、13.19±1.62岁和14.88±1.52岁。男女上下第三磨牙的颈椎与牙齿成熟度之间的Spearman相关系数分别在0.166至0.612和0.243至0.832之间。所有系数的显著性水平在0.01和0.05时相等。
本研究结果表明,男女骨骼成熟度均随牙齿年龄的增加而增加。女性观察到骨骼成熟阶段的早期速率。本研究需要使用覆盖整个牙列的更大样本进行进一步分析。