Relationship between Occlusal Force and Mandibular Condyle Morphology Evaluated by Limited Cone-Beam Computed Tomography
Relationship between Occlusal Force and Mandibular Condyle Morphology Evaluated by Limited Cone-Beam Computed Tomography
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DOI：
10.2319/120908-620r.1
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发表时间：
2009-11-01
影响因子：
3.4
通讯作者：
Soma, Kunimichi
中科院分区：
文献类型：
--
作者：
Kurusu, Aya;Horiuchi, Mariko;Soma, Kunimichi
目的：目的：探讨下颌髁突形态与咬合力的关系。材料与方法：研究对象为40例女性错牙合畸形患者。下颌骨髁状突的形态进行了评估，使用有限的锥形束CT成像。利用压力敏感片计算最大咬合力。结果：相关分析显示，咬合力与髁突的外侧半径、后半径以及下颌平面与法兰克福水平面的夹角有关。此外，髁突长度与FH的咬合平面角、FH的下颌平面角、升支倾斜度和后面部高度（S-Go）显著相关。低咬合力患者的下颌骨髁状突往往较小。结论：咬合力不仅影响颌面部形态，也影响髁突形态。（角度正交。2009;79：1063-1069）。
Objective: To clarify the relationship between occlusal force and mandibular condyle morphology using clinical data.Materials and Methods: The subjects were 40 female patients with malocclusion. The mandibular condyle morphology was assessed by using limited cone-beam CT imaging. The maximum occlusal force was calculated by using pressure-sensitive films. Maxillofacial morphologies were analyzed by using data from lateral cephalograms.Results: Correlation analysis showed that the occlusal force was correlated with the lateral and posterior radii of the condyles, and with the mandibular plane angle to the Frankfort horizontal plane (FH). Moreover, condylar length was significantly correlated with the occlusal plane angle to the FH, the mandibular plane angle to the FH, the ramus inclination, and the posterior facial height (S-Go). Low-occlusal-force patients tended to have smaller mandibular condyles. This size-related difference was more remarkable on the lateral and posterior side.Conclusions: Occlusal force influences not only maxillofacial morphology but also mandibular condyle morphology. (Angle Orthod. 2009;79:1063-1069.)