Ogawa T, Koyano K, Suetsugu T
Department of Prosthetic Dentistry II, Faculty of Dentistry, Kyushu University, Fukuoka, Japan.
J Oral Rehabil. 1997 Apr;24(4):303-9. doi: 10.1046/j.1365-2842.1997.00479.x.
This study reveals the influence of the incisal and condylar guidance on mandibular protrusive movement. The protrusive movements were measured on 54 young adults (27 females, 27 males) using a three-dimensional mandibular movement analysing system. The inclinations of the sagittal paths on the incisor, canine, 1st molar, 2nd molar and condylar points were calculated, and multiple regression analysis was performed to evaluate the influence of the incisal and condylar paths on the path of each tooth quantitatively. The influence of the incisal path on any tooth path was consistently greater than that of the condylar path. The condylar path had a greater influence on the paths of posterior teeth than on the paths of anterior teeth, especially in the female subjects. The influence of the condylar path on the molar paths was twice as great in the female than that in the male subjects. It was concluded that the influence of the incisal and condylar guidance on the protrusive movement path varies according to the kind of tooth and the gender of the subject. These guiding system characteristics were confirmed by morphological analysis.
本研究揭示了切导和髁导对下颌前伸运动的影响。使用三维下颌运动分析系统对54名年轻成年人（27名女性，27名男性）的前伸运动进行了测量。计算了切牙、尖牙、第一磨牙、第二磨牙和髁突点矢状路径的倾斜度，并进行多元回归分析以定量评估切导和髁导路径对各牙齿路径的影响。切导对任何牙齿路径的影响始终大于髁导。髁导对后牙路径的影响大于对前牙路径的影响，尤其是在女性受试者中。髁导对磨牙路径的影响在女性中是男性的两倍。得出的结论是，切导和髁导对前伸运动路径的影响因牙齿种类和受试者性别而异。这些导向系统特征通过形态学分析得到了证实。
