Eraydin Feyza, Cakan Derya Germec, Tozlu Murat, Ozdemir Fulya
Department of Orthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey.
Department of Orthodontics, Faculty of Dentistry, Marmara University, Istanbul, Turkey.
Korean J Orthod. 2018 Sep;48(5):333-338. doi: 10.4041/kjod.2018.48.5.333. Epub 2018 Aug 8.
The aim of this study was to compare the buccolingual inclination of maxillary and mandibular molars in adults with different vertical facial types.
Cone-beam computed tomography images of 135 adult patients (age, 20-45 years) with skeletal Class I maxillomandibular relationships were assigned to normodivergent (n = 46), hypodivergent (n = 49), and hyperdivergent groups (n = 40) according to linear and angular sella-nasion/gonion-menton measurements. The normodivergent group consisted of 24 females and 22 males, hypodivergent group of 26 females and 23 males, and hyperdivergent group of 24 females and 16 males. Buccolingual inclination of the maxillary and mandibular first and second molars was measured relative to the occlusal plane. One-way analysis of variance was used for intergroup comparison. Gender differences were evaluated using independent -tests.
Buccolingual molar inclinations did not differ significantly between females and males ( > 0.05). There were no statistically significant differences among the buccolingual inclinations of the first and second maxillary and mandibular molars of the groups ( > 0.05).
Buccolingual inclinations of maxillary and mandibular molars are similar in normodivergent, hyperdivergent, and hypodivergent adults with Class I sagittal relationships.
本研究旨在比较不同垂直面型成年人上颌和下颌磨牙的颊舌向倾斜度。
选取135例年龄在20至45岁之间、骨骼I类上颌下颌关系的成年患者的锥束计算机断层扫描图像，根据蝶鞍-鼻根点/下颌角-颏下点的线性和角度测量结果，将其分为均角型（n = 46）、低角型（n = 49）和高角型组（n = 40）。均角型组包括24名女性和22名男性，低角型组包括26名女性和23名男性，高角型组包括24名女性和16名男性。测量上颌和下颌第一、第二磨牙相对于咬合平面的颊舌向倾斜度。采用单因素方差分析进行组间比较。使用独立样本t检验评估性别差异。
女性和男性之间的磨牙颊舌向倾斜度无显著差异（P>0.05）。三组上颌和下颌第一、第二磨牙的颊舌向倾斜度之间无统计学显著差异（P>0.05）。
在矢状关系为I类的均角型、高角型和低角型成年人中，上颌和下颌磨牙的颊舌向倾斜度相似。
