Center for Craniofacial Disorders, Institute of Mother and Child, Kasprzaka Str. 17a, Warsaw, Poland.
Am J Orthod Dentofacial Orthop. 2010 Jan;137(1):59-65. doi: 10.1016/j.ajodo.2008.01.018.
Our aim was to assess effectiveness of the cervical vertebral maturation (CVM) method to predict circumpubertal craniofacial growth in the postpeak period.
The CVM stage was determined in 176 subjects (51 adolescent boys and 125 adolescent girls) on cephalograms taken at the end of treatment (T2; mean ages, 15.75 years [boys] and 15.23 years [girls]) in subjects from the postretention database at the University of Washington in Seattle. Craniofacial growth was evaluated from the following measurements on cephalograms at T2 and end of follow-up (T3) (mean ages, 29.01 years [men] and 28.08 years [women]): condylion to gnathion, condylion to gonion, gonion to gnathion, sella to gnathion, nasion to menton, anterior nasal spine to menton, and sella to gonion. The change of each variable from T2 to T3 was assessed with paired t tests. Parametric (t tests or analysis of variance [ANOVA]) or nonparametric (Mann-Whitney or Kruskal-Wallis) tests were used to detect intergroup differences.
One hundred eight subjects (35 boys, 73 girls) demonstrated CVM stage 3, 56 (16 boys, 40 girls) were in CVM stage 4, and 12 (all girls) were in CVM stage 5 at T2. Intrasex comparisons showed that boys in CVM stages 3 and 4 could be differentiated regarding changes of all variables. In the girls, only those in CVM stages 3 and 4 could be differentiated based on the amount of changes of 2 measurements: condylion to gonion and sella to gonion. Intersex comparisons showed that boys in CVM stage 3 had significantly more changes than girls (P <0.01). Boys in CVM stage 4 showed significant differences compared with girls in CVM stage 4 for only 2 variables (sella to gonion and condylion to gonion; P <0.001 and P = 0.012, respectively).
The CVM method was modestly effective in determining the amount of postpeak circumpubertal craniofacial growth.
本研究旨在评估颈椎成熟度（CVM）法预测青春期后颅面生长的效果。
我们在西雅图华盛顿大学的保留期后数据库中，对治疗结束时（T2；男孩平均年龄为 15.75 岁，女孩平均年龄为 15.23 岁）拍摄的头颅侧位片上确定了 176 名受试者（51 名青春期男孩和 125 名青春期女孩）的 CVM 阶段。在 T2 和随访结束时（T3）的头颅侧位片上评估颅面生长，测量以下指标：髁突至下颌角、髁突至下颌角、下颌角至下颌角、蝶鞍至下颌角、前鼻棘至下颌角、蝶鞍至下颌角。采用配对 t 检验评估从 T2 到 T3 每个变量的变化。采用参数（t 检验或方差分析 [ANOVA]）或非参数（Mann-Whitney 或 Kruskal-Wallis）检验检测组间差异。
108 名受试者（35 名男孩，73 名女孩）T2 时 CVM 阶段为 3，56 名受试者（16 名男孩，40 名女孩）为 CVM 阶段 4，12 名受试者（均为女孩）为 CVM 阶段 5。同性别比较显示，CVM 阶段 3 和 4 的男孩在所有变量的变化方面可以区分。在女孩中，只有 CVM 阶段 3 和 4 的女孩可以根据 2 个测量值的变化量进行区分：髁突至下颌角和蝶鞍至下颌角。性别间比较显示，CVM 阶段 3 的男孩的变化量明显大于女孩（P <0.01）。CVM 阶段 4 的男孩与 CVM 阶段 4 的女孩相比，仅在 2 个变量（蝶鞍至下颌角和髁突至下颌角；P <0.001 和 P = 0.012）上有显著差异。
CVM 法在确定青春期后颅面生长量方面效果适度。
