Mandibular movement and frontal craniofacial morphology in orthognathic surgery patients with mandibular deviation and protrusion
Mandibular movement and frontal craniofacial morphology in orthognathic surgery patients with mandibular deviation and protrusion
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DOI：
10.1046/j.1365-2842.2003.01040.x
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发表时间：
2003-04-01
影响因子：
2.9
通讯作者：
Kohno, S
中科院分区：
文献类型：
--
作者：
Oguri, Y;Yamada, K;Kohno, S
本研究采用六自由度测量装置，对16例下颌偏斜患者的下颌运动（侧移和咀嚼运动）与颅面形态的关系进行了研究。(i)下颌偏斜与额、上、下颌平面角及咬合平面角有显著相关性。(ii)三维非工作髁和切路径长度在侧向偏移到非偏斜侧时比偏移到偏斜侧时长，切路径向前下方移动。(iii)在咀嚼运动中，非偏斜侧的切道侧向运动范围比偏斜侧更宽，与切道侧向运动范围相对应的磨牙和非工作髁道长度在非偏斜侧也更长。后牙反组的水平切迹范围明显小于非偏斜侧，在偏斜侧的咀嚼运动中，前牙投射切迹和磨牙路径角也明显小于非偏斜侧。这些结果表明，侧向偏移和咀嚼运动可能与颅面形态和后牙反有关。
The present study was conducted to investigate the relationship between mandibular movement (lateral excursion and masticatory movements) and craniofacial morphology in 16 patients with mandibular deviation, using a six degrees-of-freedom measuring device. (i) Mandibular deviation was found to be significantly related to frontal maxillary and occlusal plane angles. (ii) Three-dimensional non-working condylar and incisal path lengths were longer during the lateral excursion to the non-deviated side than to the deviated side, and the incisal path moved antero-inferior. (iii) The lateral motion range of the incisal path was wider during masticatory movement on the non-deviated side than on the deviated side, and the molar and non-working condylar path lengths corresponding to the lateral range of the incisal path were also longer on the non-deviated side. The group with posterior crossbite showed a significantly smaller horizontal range of incisal path, and also significantly smaller frontal projected incisal and molar path angles during masticatory movement on the deviated side than on the non-deviated side. These results suggest that lateral excursion and masticatory movements could be related to craniofacial morphology and posterior crossbite.