论文部分内容阅读
目的:研究乌鲁木齐市汉族青少年年龄、颈椎骨龄与下颌第二磨牙钙化程度之间的相关性,探讨这三项指标在口腔正畸临床中的应用价值。方法:对乌鲁木齐市300例9~15岁青少年(男128名,女172名)进行全颌曲面断层片和头颅侧位片的观察测量,应用Hassel和Farman的改良颈椎分析法评估患者颈椎骨龄和Demirjian法对左下第二磨牙进行发育、钙化阶段评估,运用统计学分析方法探讨三者之间的相关性。结果:通过Spearman相关性分析,得出年龄与颈椎骨龄在男性组呈高度相关性(r=0.795,P<0.01),在女性组呈中度相关性(r=0.654,P<0.01),年龄与第二磨牙钙化程度呈中度相关性(男:r=0.680,P<0.01;女:r=0.650,P<0.01),骨龄与第二磨牙钙化程度呈高度相关性(男:r=0.782,P<0.01;女:r=0.729,P<0.01);在合计组中颈椎骨龄与第二磨牙钙化程度呈高度相关性(r=0.752,P<0.01),年龄与颈椎骨龄呈高度相关性(r=0.700,P<0.01),年龄与第二磨牙钙化程度呈中度相关性(r=0.684,P<0.01)。结论:乌鲁木齐市汉族青少年年龄、颈椎骨龄与下颌第二磨牙钙化程度均有相关性,其中在合计组中颈椎骨龄与下颌第二磨牙钙化程度呈高度相关性,正畸临床判断并预测患儿生长发育阶段时,采用牙龄进行评价优于以年龄进行评价。
Objective: To study the correlation between the age of adolescents and cervical bone age and the degree of calcification of the second molars in Urumqi, and to explore the clinical value of these three indexes in orthodontics. Methods: Three hundred and thirteen adolescents aged 9-15 years (128 males and 172 females) in Urumqi were observed and measured with panoramic craniofacial slices and cephalograms. The cervical spine age and cervical spine age were assessed by Hassel and Farman’s modified cervical spine analysis Demirjian method on the lower left second molar development, calcification stage assessment, the use of statistical analysis to explore the correlation between the three. RESULTS: Spearman’s correlation analysis showed that there was a significant correlation between age and cervical bone age in the male group (r = 0.795, P <0.01), moderate correlation in the female group (r = 0.654, P <0.01) (Male: r = 0.680, P <0.01; female: r = 0.650, P <0.01), and there was a significant correlation between the age of the second molar and the degree of calcification , P <0.01; female: r = 0.729, P <0.01). There was a significant correlation between the age of cervical spine and calcification of the second molar in the total group (r = 0.752, P <0.01) (r = 0.700, P <0.01). There was a moderate correlation between age and calcification of the second molar (r = 0.684, P <0.01). Conclusions: The age of adolescents and the age of cervical vertebra in Urumqi are related to the degree of calcification of the second molar in Urumqi. There is a high correlation between the cervical skeletal age and calcification degree of the second molar in the total group. The orthodontic clinical judgment and prediction of the growth of children Developmental stage, the use of dental evaluation is better than the age of evaluation.