A STUDY OF WORKING-SIDE INTERFE

工作端干扰的研究

• 批准号: 04454482
• 负责人: MIZUTANI Hiroshi
• 金额: $ 0.32万
• 依托单位: TOKYO MEDICAL AND DENTAL UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04454482/
• 关键词: WORKING-SIDE; ELECTROMYOGRAPHY; OCCLUSAL INTERFERENCE; CLENCHING; MASSETER MUSCLE; TEMPORAL MUSCLE; 咬頭干渉; 咬みしめ; 非対称性指数

THE INFLUENCE OF THE EXPERIMENTAL OCCLUSAL DISCREPANCY ON MASTICATORY MUSCLE ACTIVITY WAS INVESTIGATED ON TWELVE SUBJECTS.SPECIALLY DESIGNED OCCLUSAL INTERFERENCES WERE FABRICATED AND VARIOUS OCCLUSAL STATES WERE SIMULATED WITH THE AID OF THEM.SUBJECTS WERE ASKED TO CARRY OUT ECCENTRIC CLENCHING EFFORTS AND ELECTORMYOGRAPHIC ACTIVITY OF THE MASSETER AND THE ANTERIOR AND POSTERIOR TEMPORAL MUSCLES WAS MEASURED.THE INTRODUCTION OF AN EXPERIMENTAL NON-WORKING SIDE INTERFERENCE CAUSED AN ALTERATION OF ACTIVITY PATTERN IN THE ANTERIOR AND POSTERIOR TEMPORAL MUSCLES.WHEN COMPARED TO THE NATURAL UNALTERED CONDITION, A UNILATERAL ACTIVITY PATTERN WITH CLEAR DOMINANCE ON THE WORKING SIDE WAS ALTERED TO A BILATERAL PATTERN.WHILE THAT OF THE MASSETER MUSCLES REMAINED UNINFLUENCED, RESULTANT BILATERAL ACTIVITY IS THOUGHT TO CAUSE A SUPERIOR MOVEMENT OF THE WORKING SIDE CONDYLE AND AN INFERIOR MOVEMENT OF THE NON-WORKING SIDE CONDYLE.THE RESULT OF THIS STUDY SUGGESTS THAT THE NON-WORKING SIDE INTERFERENCE PROVOKES SPECIFIC MUSCLE ACTIVITY IN THE TEMPORAL MUSCLES DURING PARAFUNCTIONAL CLENCHING AND THAT IT MAY AFFECT THE DISTRIBUTION OF THE APPLIED FORCES AT THE TEMPOROMANDIBULAR JOINTS.

研究了 12 名受试者的实验咬合差异对咀嚼肌活动的影响。制作了专门设计的咬合干扰，并在其帮助下模拟了各种咬合状态。受试者为要求进行偏心握紧力度并测量咬肌和前后颞肌的肌电活动。引入实验性非工作侧干扰引起了 前后颞肌活动模式的改变。与自然未改变的情况相比，工作侧明显占主导地位的单侧活动模式改变为双侧模式，而咬肌的活动模式保留未受影响的双边活动被认为会导致工作侧髁的高级运动和非工作侧髁的较差运动。本研究的结果 表明非工作侧干扰会在半功能性紧握过程中激发颞肌的特定肌肉活动，并且可能会影响颞下颌关节处施加的力的分布。

项目成果

MIZUTANI,HIROSHI,ET AL.: "INFLUENCE OF EXPERIMENTAL OCCLUSAL DISCREPANCY ON THE MASTICATORY MUSCLE ACTIVITY DURING CLENCHING" JOURNAL OF ORAL REHABILITATION(ACCEPTED).

水谷浩等人：“咬紧牙过程中实验性咬合差异对咀嚼肌活动的影响”口腔康复杂志（已接受）。

水谷 紘他: "平衡側咬頭干渉が下顎の機能に及ぼす影響" 日本補綴歯科学会雑誌. 37. 53-53 (1993)

Hiro Mizutani 等人：“平衡牙尖干扰对下颌功能的影响”日本修复医学会杂志 37. 53-53 (1993)。

MIZUTANI,HIROSHI AND NAKAMURA,KAZUO: "INFLUENCE OF EXPERIMENTAL OCCLUSAL DISCREPANCY ON THE MASTICATORY MUSCLE ACTIVITY DURING CLENCHING" JOURNAL OF ORAL REHABILITATE. ON PRESS.

Mizutani, Hiroshi 和 Nakamura, Kazuo：“咬紧牙过程中实验性咬合差异对咀嚼肌活动的影响”口腔康复杂志。

H.Mizutani,et al: "Influence of experimental occlusal discrepancy on the masticatory muscle activity during clenching" J of Oral Rehabilitation.(accepted).

H.Mizutani 等人：“咬紧牙过程中实验性咬合差异对咀嚼肌活动的影响”《口腔康复杂志》（已接受）。