Relationships between dental and skeletal maturity in Turkish subjects.
Relationships between dental and skeletal maturity in Turkish subjects.
复制标题
土耳其受试者牙齿和骨骼成熟度之间的关系。
作者：
T. Uysal;Z. Sari;S. Ramoglu;F. Başçiftçi
本研究的目的是调查土耳其受试者各种牙齿钙化阶段与骨骼成熟阶段之间的关系。这些样本来自 500 名受试者（215 名男性和 285 名女性）的牙齿全景和手腕 X 光照片。根据Demirjian系统对下颌尖牙、第一和第二前磨牙、第二和第三磨牙的钙化进行评级。为了评估每张手腕射线照片的骨骼成熟阶段，根据 Björk、Grave 和 Brown 的系统确定了九个骨化事件。根据斯皮尔曼等级相关系数确定牙齿钙化和骨骼成熟阶段之间具有统计学意义的关系。女性牙齿发育和骨骼成熟度之间的相关性为 0.490 至 0.826，男性为 0.414 至 0.706（P < .01）。对于女性和男性受试者，第二磨牙显示出最高的相关性，而第三磨牙显示出最低的相关性。对于男女来说，大多数受试者的犬齿和第一前磨牙的牙根形成是在 MP3cap、PP1cap、Rcap 阶段完成的。由于相关系数较高，这项研究表明，全景X光照片中的牙齿钙化阶段可能在临床上用作青春期生长期的成熟度指标。在治疗土耳其患者时，将这些骨骼和牙齿成熟关系纳入日常正畸诊断实践中是适当的。
The aim of this study was to investigate the relationships between the stages of calcification of various teeth and skeletal maturity stages among Turkish subjects. The samples were derived from dental panoramic and hand-wrist radiographs of 500 subjects (215 males and 285 females). Calcification of the mandibular canines, first and second premolars, and second and third molars was rated according to the system of Demirjian. To evaluate the stage of skeletal maturation of each hand-wrist radiograph, nine ossification events were determined according to the systems of Björk, and Grave and Brown. Statistically significant relationships were determined between dental calcification and skeletal maturity stages according to Spearman rank-order correlation coefficients. Correlations between dental development and skeletal maturity ranged from .490 to 0.826 for females and .414 to .706 for males (P < .01). The second molar showed the highest correlation and the third molar showed the lowest correlation for female and male subjects. For both sexes, root formation of the canine as well as the first premolar was completed in the majority of the subjects at the MP3cap, PP1cap, Rcap stages. Because of the high correlation coefficients, this study suggests that tooth calcification stages from panoramic radiographs might be clinically useful as a maturity indicator of the pubertal growth period. It is appropriate to put these skeletal and dental maturation relationships into daily orthodontic diagnostic practice, when treating a Turkish patient.