The development of the optimum occlusal morphology occlusal facets in harmony with jaw movement and the clinical application

与颌运动相协调的最佳咬合形态咬合面的开发及临床应用

• 批准号: 07457472
• 负责人: NAKANO Masanori
• 金额: $ 5.06万
• 依托单位: The University of Tokushima
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07457472/
• 关键词: Occlusal reference surface; Occlusal facet; Jaw movement; M and D value; M and D type guidance; 咬合面形態; 計算機シミュレーション

The purpose of this study was to determine the optimum morphology of occlusal facets from the view point of harmony with jaw movements. Results were as follows.1. Occlusal reference surfaces, proposed by Mima, were applicable not only single path but also multiple pathes of jaw movements.2. Four types of occlusal reference surfaces were defined by using the trajectories of lateral, retrusive and protrusive sliding movements. The harmonious occlusal facets with these occlusal reference surfaces produced no considerable interference with jaw movement during the forth and fifth phases of the chewing cycle.3. We proposed to evaluate occlusal facets quantitatively by using inclination angle and M (D) value corresponding with azimuth angle. This evaluating method was significant in comparison of occlusal reference surfaces to occlusal facets of subjects.4. Lateral excurisions were measured by using a jaw tracking device (MM-JI) with experimental M type and D type lateral tooth guidances on canine teeth. D type lateral tooth guidance led more posterior path way of working condylar point than M type lateral tooth guidance. This suggested that D type guidance may cause overload in temporomandibular joint.

本研究的目的是从与颌骨运动协调的角度来确定咬合小平面的最佳形态。结果如下：1.米马提出的咬合参考面不仅适用于单路径运动，也适用于多路径运动.根据侧向、后缩和前伸滑动轨迹定义了四种类型的咬合参考面。在咀嚼周期的第四和第五阶段，与这些咬合参考面相协调的咬合小平面对颌骨运动没有明显的干扰。我们提出了用倾斜角和与方位角对应的M（D）值来定量评价咬合小平面。该评价方法对受试者的牙合参考面与牙合小平面的比较有重要意义.用下颌跟踪装置（MM-JI）测量了尖牙的侧向位移，并与实验用M型和D型侧向牙齿导向器进行了比较。D型牙侧导较M型牙侧导导致髁突工作点的后径路更多。提示D型引导可引起颞下颌关节负荷过重。

项目成果

佐藤 裕,中野雅徳,坂東永一ほか: "側方運動のガイドの変化が顎運動に及ぼす影響" 日本補綴歯科学会雑誌. 39 87回特別号. 47-47 (1995)

Yutaka Sato、Masanori Nakano、Eiichi Bando 等人：“横向运动导向的变化对下颌运动的影响”，日本口腔修复学会杂志，第 39 期第 47-47 期（1995 年）。

Suzuki, A.: "The analysis of chewing movement in six degree-of-freedom" J Jpn Prosthodont Soc. 41 (97th Special Issue). 37 (1997)

Suzuki, A.：“六自由度咀嚼运动的分析”J Jpn Prosthodont Soc。

安陪 晋: "咬合小面と咬合参照面の比較" 日本補綴歯科学会雑誌. 41 98回特別号. 142-142 (1997)

Susumu Amabe：“咬合面和咬合参考面的比较”日本修复医学会杂志 41 第 98 期特刊（1997 年）。

佐藤 裕: "側方滑走運動のガイド面の方向が顎運動に及ぼす影響" 日本補綴歯科学会雑誌. 42(2)(印刷中). (1998)

Yutaka Sato：“横向滑动运动中引导表面的方向对颌运动的影响”，日本修复医学会杂志 42(2)（出版中）。

Sato, Y.: "Effects of the direction of lateral tooth guidance on jaw movement" J Jpn Prosthodont Soc. 42 (in press).

Sato, Y.：“横向牙齿引导方向对下颌运动的影响”J Jpn Prosthodont Soc。