Aleppo Specialized Orthodontic Center, Aleppo, Syria.
CMH Institute of Dentistry Lahore, National University of Medical Sciences, Punjab, Pakistan.
Biomed Res Int. 2021 Jun 9;2021:9986498. doi: 10.1155/2021/9986498. eCollection 2021.
The determination of skeletal maturity stages is very important in orthodontic treatment planning, especially skeletal discrepancies in growing individuals. A hand-wrist radiograph is considered the most accurate approach for skeletal maturity detection. Dental calcification stages have been suggested as an alternative diagnostic method to decrease radiation exposure. The recent study is aimed at detecting the efficacy of dental calcification stages in assessing skeletal maturity during the prepubertal and pubertal growth periods.
Patients' records were collected from the Aleppo Orthodontic Center. Dental maturity stages were assessed from a panoramic radiograph using the Demirjian method, while skeletal maturity stages were determined using the Björk method. Four permanent left mandibular teeth were included (canine, 1st premolar, 2nd premolar, and 2nd molar) for the study.
From 517 records, 295 records (145 males and 150 females) were included. The Spearman rank-order correlation coefficients between skeletal maturation and dental maturation were strong and statistically significant (ranging from 0.789 to 0.835). The highest correlation was between skeletal stages and the second molar ( = 0.829 and 0.88 in males and females, respectively). Receiver operating characteristic (ROC ) curve suggested a high validity of the sum of dental stages for the four teeth in identifying MP3= stage (sensitivity was 70%, specificity was 92.77%, and ROC area was 0.81) but not for MP3cap (sensitivity was 50.85%, specificity was 81.36%, and ROC area was 0.66).
The correlation between the skeletal maturity stages and the dental calcification stages was high. The orthodontist can use the dental stages as a definite diagnostic tool for prepubertal growth period.
在正畸治疗计划中，确定骨骼成熟阶段非常重要，尤其是在生长中的个体中存在骨骼差异的情况下。手腕 X 光片被认为是检测骨骼成熟度最准确的方法。牙钙化阶段已被提议作为减少辐射暴露的替代诊断方法。最近的研究旨在检测牙钙化阶段在评估青春期前和青春期生长期间骨骼成熟度方面的功效。
从阿勒颇正畸中心收集患者的记录。使用 Demirjian 方法从全景片评估牙齿成熟度阶段，而使用 Björk 方法确定骨骼成熟度阶段。该研究包括四颗左下颌恒牙（犬齿、第一前磨牙、第二前磨牙和第二磨牙）。
从 517 份记录中，纳入了 295 份记录（男性 145 份，女性 150 份）。骨骼成熟度和牙齿成熟度之间的 Spearman 秩相关系数较强且具有统计学意义（范围从 0.789 到 0.835）。第二磨牙与骨骼阶段的相关性最高（男性和女性分别为 = 0.829 和 0.88）。接收器操作特征（ROC）曲线表明，四颗牙齿的牙龄总和在识别 MP3= 期时具有较高的有效性（敏感性为 70%，特异性为 92.77%，ROC 面积为 0.81），但在识别 MP3cap 时则不然（敏感性为 50.85%，特异性为 81.36%，ROC 面积为 0.66）。
骨骼成熟阶段与牙钙化阶段之间存在高度相关性。正畸医生可以使用牙龄作为青春期前生长阶段的明确诊断工具。
