Relationships among facial type, buccolingual molar inclination, and cortical bone thickness of the mandible
Relationships among facial type, buccolingual molar inclination, and cortical bone thickness of the mandible
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DOI：
10.1093/ejo/23.1.15
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发表时间：
2001-02-01
影响因子：
2.6
通讯作者：
Kasai, K
中科院分区：
文献类型：
--
作者：
Masumoto, T;Hayashi, I;Kasai, K
本研究的目的是评估不同的面型，颊舌向磨牙倾斜和下颌骨皮质骨厚度之间的关系。这些材料由东京大学博物馆的31个现代日本男性的干头骨组成。他们都表现出正常的咬合，最小的牙齿差异，没有反牙合或面部不对称。长脸组第二磨牙颊舌向倾斜度（M2）显著小于中脸组和短脸组。结果发现，长脸受试者的牙齿更倾向于舌比短脸受试者。第一磨牙（M1）和M2部分的皮质骨厚度在短面受试者中比在平均和长面受试者中厚。这项研究的结果提供的证据表明，一个显着的，但复杂的关系之间存在的下颌体结构和面部类型。与咀嚼功能和面型相关的形态特征与下颌骨体的皮质骨厚度以及第一和第二磨牙的颊舌向倾斜度相关。
The purpose of this study was to evaluate the relationships between different facial types, and both the buccolingual molar inclination and cortical bone thickness of the mandible. The material consisted of 31 dry skulls of modern Japanese males from the Museum of the University of Tokyo. They all demonstrated normal occlusion with minimal dental discrepancy, and without crossbite or facial asymmetry. The buccolingual inclination of the seco nd molar (M2) in the long-faced subjects was significantly smaller than the sa me dimension in the average- and short-faced subjects. It was found that the teeth of long-faced subjects were more lingually inclined than those of the short-faced subjects. The cortical bone thickness of the first molar (M1) and M2 sections was thicker in short-faced subjects than in average- and long-faced subjects. The results of this study provide evidence that a significant, but complex relationship exists between structures of the mandibular body and facial types. The morphological features that relate to masticatory function and facial types are associated with the cortical bone thickness of the mandibular body, and the buccolingual inclination of the first and second molars.