Ayach Ousama A, Hadad Rania
Department of Orthodontics, Faculty of Dental Medicine Damascus University, Damascus, Syria, Phone: +963988845280, e-mail:
Department of Orthodontics, Faculty of Dental Medicine Damascus University, Damascus, Syria.
J Contemp Dent Pract. 2018 Jun 1;19(6):662-668.
Assessing skeletal maturity is a critical factor in orthopedic treatment and orthognathic surgery. Quantitative methods have been suggested to decide the skeletal age. This study aims to assess the correlation between the middle phalanx of the third finger (MP3) method and cervical vertebral volume parameters (CVVP) in skeletal age determination.
This cross-sectional study was conducted on 21 boys and 29 girls between the ages of 8 and 16 years, who were divided into five groups of skeletal maturation: 100 MP3 radiographs and cone beam computed tomography (CBCT) were obtained and analyzed. Middle phalanx of the third finger maturation stages were evaluated according to Perinetti method (stages F-FG-G-H-I). The CVVP was determined on CBCT using Mimics Medical software. Analysis of variance (ANOVA) and Bonferroni tests were utilized to investigate the differences in volumetric parameters between MP3 stages. Spearman correlation coefficient was employed to obtain the correlation between MP3 stages and the CVVP.
The differences in CVVP concentrated between MP3-I stage and the previous stages, with the highest values those for the 4th vertebra. Spearman test revealed a significant highest correlation between MP3 stages and the CVVP in the 4th vertebra; the lowest was in the 2nd, which was higher in the girls group.
Strong level of agreement between the two methods was significant in the 4th vertebra.
Measurement of volumes of the 4th CVVP could be used as simple quantitative analysis in clinical practice to evaluate the maturity in orthodontic patients.
评估骨骼成熟度是骨科治疗和正颌外科手术中的关键因素。已有人提出采用定量方法来确定骨骼年龄。本研究旨在评估在确定骨骼年龄时，第三指中节指骨（MP3）法与颈椎体积参数（CVVP）之间的相关性。
本横断面研究针对21名年龄在8至16岁之间的男孩和29名女孩开展，他们被分为五组骨骼成熟度：获取并分析了100张MP3 X光片和锥形束计算机断层扫描（CBCT）图像。根据佩里内蒂方法（F - FG - G - H - I阶段）评估第三指中节指骨的成熟阶段。使用Mimics Medical软件在CBCT上确定CVVP。采用方差分析（ANOVA）和邦费罗尼检验来研究MP3各阶段之间体积参数的差异。采用斯皮尔曼相关系数来获取MP3各阶段与CVVP之间的相关性。
CVVP的差异集中在MP3 - I阶段与之前各阶段之间，第四椎体的值最高。斯皮尔曼检验显示，MP3各阶段与第四椎体的CVVP之间存在显著的最高相关性；第二椎体的相关性最低，在女孩组中更高。
两种方法之间的高度一致性在第四椎体中具有显著意义。
测量第四CVVP的体积可作为临床实践中评估正畸患者成熟度的简单定量分析方法。
