Evaluation of the pattern of the skeletal deviation by the simulation of bone remodeling.

通过模拟骨重塑来评估骨骼偏差的模式。

• 批准号: 22592281
• 负责人: SAITO Isao
• 金额: $ 2.91万
• 依托单位: Niigata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22592281/
• 关键词: 歯科矯正学; 偏位咬合; シミュレーション; 有限要素解析; 顎変形症; 三次元有限要素解析; 骨リモデリング

The skull and masticatory muscles were taken from the CT images of patients with skeletal deviated occlusion. The finite element models of the skull were constructed using CT images, and then the loading conditions were set depending on the direction and cross sectional area of the muscles. As a result, the model showed imbalanced stress distribution in the deviated skull. Then, to elucidate the effects of the imbalanced masticatory force in the symmetrical face, a bilateral symmetrical face was created using the original deviated skull. The symmetrical model also showed imbalanced stress distribution, furthermore, in some regions, the level of imbalance was more obvious than in the original model. The results of this study suggest that asymmetric stress distribution in both the maxilla and mandible during mastication appears to be one of the exacerbating factors with regard to skeletal deviated occlusion.

对骨偏闭塞患者的颅骨和咀嚼肌进行CT扫描。利用CT图像建立颅骨有限元模型，并根据颅骨肌肉的方向和横截面积设置加载条件。结果表明，模型在偏颅骨内应力分布不平衡。然后，为了阐明咀嚼力不平衡对对称面部的影响，利用原始的偏斜颅骨创建了双侧对称面部。对称模型也表现出不平衡的应力分布，而且在某些区域，不平衡程度比原模型更明显。本研究的结果表明，在咀嚼过程中，上颌骨和下颌骨的不对称应力分布似乎是导致骨偏咬合的加剧因素之一。

项目成果

外科的矯正治療の実践‐形態的調和と機能変化について‐

正畸外科治疗实践-关于形态和谐与功能改变-

• 发表时间: 2012
• 作者: 小栗由充;長沼一男;原田史子;渡辺厚;人正樹;齊藤力;高木律男;齋藤功;Yakita Y,Terada K,Kohara A,Ochi K,and Saito I;越知 佳奈子;Watanabe Naoko;齋藤功
• 通讯作者: 齋藤功

The progress of inter center collaborative studies in Japan.

日本中心间合作研究进展.

• 发表时间: 2011
• 作者: Saito I;Asahito T;Ono K;Susami T
• 通讯作者: Susami T

Postoperative changes in mandibular prognathism surgically treated by intraoral vertical ramus osteotomy

• DOI: 10.1016/j.ijom.2012.06.024
• 发表时间: 2013-01-01
• 期刊: INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
• 影响因子: 2.4
• 作者: Nihara, J.;Takeyama, M.;Saito, I.
• 通讯作者: Saito, I.

Clinical considerations in adult orthodontic treatment

成人正畸治疗的临床考虑

• 发表时间: 2011
• 期刊: World J Orthodontics
• 作者: Isao Saito;Watanabe N;他3名
• 通讯作者: 他3名

Orthodontic treatment combined with temporary anchorage device for Class II with osteoarthrosis of the temporomandibular joint

正畸联合临时支抗装置治疗II类颞下颌关节骨关节炎

• 发表时间: 2012
• 期刊: Orthodontic Waves
• 影响因子: 0.4
• 作者: Naoko Watanabe;Tadao Fukui;Isao Saito
• 通讯作者: Isao Saito