Alkan Özer, Aydoğan Cihan, Akkaya Sevil
Department of Orthodontics, Faculty of Dentistry, Yüzüncü Yıl University, Van 65080, Turkey.
Department of Orthodontics, Faculty of Dentistry, Gazi University, Ankara, Turkey.
J Craniovertebr Junction Spine. 2016 Jul-Sep;7(3):135-9. doi: 10.4103/0974-8237.188409.
Cervical vertebral maturation (CVM) methods have gained popularity to assess growth and development status for orthodontic patients. Although craniofacial and craniocervical structures are known to be associated, there is no evidence in the literature if this relation might negatively affect the accuracy of CVM assessments. Therefore, this study aimed to comparatively investigate the sizes of the 2(nd), 3(rd), and 4(th) cervical vertebrae in adult females (radius union stage of skeletal maturity) who have different sagittal skeletal patterns.
A cross-sectional study was conducted, and 151 lateral cephalometric radiographs of adult female patients were assessed in the study. Patients were assigned to three groups according to ANB angle. Parameters including concavity depth at the lower border of the 2(nd), 3(rd), and 4(th) cervical vertebrae and base length, upper border length, body length, posterior height, anterior height, and body height of the 3(rd) and 4(th) cervical vertebrae bodies were measured. One-way analysis of variance was used for between-group comparisons.
No statistically significant differences were found between groups in terms of concavity depth at the lower borders of the 2(nd), 3(rd), and 4(th) cervical vertebrae (P > 0.05). Base length, upper border length, body length, posterior height, anterior height, and body height of the 3(rd) and 4(th) cervical vertebrae were also similar between groups (P > 0.05).
The results of this study supports that sagittal craniofacial pattern has no effect on the accuracy of using the methods assessing CVM and calculating cervical vertebral age.
颈椎成熟度（CVM）评估方法已广泛应用于正畸患者生长发育状态的评估。虽然已知颅面和颅颈结构存在关联，但尚无文献证据表明这种关系是否会对CVM评估的准确性产生负面影响。因此，本研究旨在比较调查具有不同矢状骨面型的成年女性（骨骼成熟的桡骨联合阶段）第二、三、四颈椎的大小。
进行了一项横断面研究，评估了151例成年女性患者的头颅侧位X线片。根据ANB角将患者分为三组。测量了包括第二、三、四颈椎下缘凹陷深度以及第三、四颈椎椎体的基底长度、上缘长度、椎体长度、后高度、前高度和椎体高度等参数。组间比较采用单因素方差分析。
第二、三、四颈椎下缘凹陷深度在组间无统计学显著差异（P>0.05）。第三、四颈椎的基底长度、上缘长度、椎体长度、后高度、前高度和椎体高度在组间也相似（P>0.05）。
本研究结果支持矢状颅面型对使用CVM评估方法和计算颈椎年龄的准确性没有影响。
