Tozlu Murat, Germeç Cakan Derya, Ulkur Feyza, Ozdemir Fulya
a Assistant Professor, Department of Orthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey.
b Associate Professor, Department of Orthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey.
Angle Orthod. 2015 Sep;85(5):868-73. doi: 10.2319/070914-480.1. Epub 2014 Nov 18.
To evaluate whether buccal cortical bone inclination varies for the maxillary alveolar processes of adult patients with decreased, normal, and increased facial heights.
Cone-beam computed tomography images of 135 adult patients, including 49 hypodivergent subjects (26 women, 23 men), 40 hyperdivergent subjects (24 women, 16 men), and 46 normodivergent (25 women, 21 men) were analyzed. Cortical bone inclination measurements were made relative to the occlusal plane. Cross-sectional slices of the maxilla were taken at interdental sites from the distal aspect of maxillary canine to the mesial aspect of maxillary second molar.
Analysis of variance indicated significant differences (P < .05) between the angles formed by the line tangent to the cortical bone and the occlusal plane among the vertical facial types for the regions between canine and first premolar and between second premolar and first molar at miniscrew insertion sites.
The results of this study indicate that vertical facial pattern should be taken into consideration when adjusting the insertion angle of miniscrews at the maxillary buccal region.
评估成年患者面部高度降低、正常和增加时，上颌牙槽突的颊侧皮质骨倾斜度是否存在差异。
分析135例成年患者的锥形束计算机断层扫描图像，其中包括49例低角型受试者（26名女性，23名男性）、40例高角型受试者（24名女性，16名男性）和46例均角型受试者（25名女性，21名男性）。相对于咬合平面进行皮质骨倾斜度测量。在上颌从尖牙远中面至第二磨牙近中面的牙间部位获取上颌的横断面切片。
方差分析表明，在微种植体植入部位，犬牙与第一前磨牙之间以及第二前磨牙与第一磨牙之间区域，垂直面部类型中皮质骨切线与咬合平面所成角度存在显著差异（P < .05）。
本研究结果表明，在上颌颊侧区域调整微种植体植入角度时，应考虑垂直面部类型。
