摘要
Abstract
Objective The objective of this study was to explore the relationship between adolescent craniomaxillofacial sagittal and vertical growth and cervical vertebral bone maturity.To achieve this,a large sample was used to establish a multivariate model,which provides a more accurate reference for clinical diagnosis and orthodontic design.Methods A total of 4176 subjects(2088 males and 2088 females),aged 8-18 years,were enrolled in the study.The subjects were distributed evenly across the cervical bone age QCVM stages Ⅰ-Ⅲ,with an equal number of males and females in each QCVM stage group.Multiple regression models were run for each QCVM stage group to assess the correlation between each of the vertical and sagittal cephalometric parameters and the age of attainment of the corresponding QCVM stages.Results The results indicated that in the QCVM-Ⅰ stage group(model 1),R2 was 0.41,and sex,SNA,Go-Pog,Wits,Go-Co,OP-SN,N-S-Ar,and N-Go-Me were positively correlated with the age of attaining QCVM-Ⅱ,while Ptm-A was negatively correlated with the age of attaining QCVM-Ⅰ.In the QCVM2 stage group(model 2),the coefficient of determination(R2)was 0.356 3.Sex,SNA,Go-Pog,Wits,Go-Co,N-S-Ar,and N-Go-Me were positively correlated with the age of reaching QCVM2,while Ptm-A was negatively correlated with the age of reaching QCVM2.In the QCVM-Ⅲ group(model 3),the R2 was 0.1286.Sex,SNA,Ptm-A,Go-Co,and N-S-Ar were positively correlated with the age of reaching QCVM3,while OP-SN and Ar-Go-N were negatively correlated with the age of reaching QCVM2.Conclusion There was a significant correlation between sagittal and vertical craniofacial-mandibular growth and development and cervical bone maturity.In sagittal growth,the efficacy of promoting maxillary growth and mandibular body lengthening was greater during the accelerated and peak growth phases than during the decelerated phase.In terms of vertical growth,the inclination of the ascending mandibular branch increases with age.Consequently,the optimal period to intervene in the formation of the vertical osteofacial shape is the period of growth acceleration.Furthermore,males reached the accelerated,peak,and decelerated periods of growth approximately one year later than females.The mean age difference between the three bone age subgroups was approximately two years in that order.关键词
青少年/颅颌面部生长发育/颈椎骨成熟度/颈椎骨龄/QCVM定量分期法Key words
adolescent/craniofacial and maxillofacial growth and development/cervical bone maturity/cervical bone age/quantitative phasing method分类
医药卫生
