Chewing Movements of Complete Dentures using Soft Lining Material

使用软衬里材料的全口假牙的咀嚼运动

• 批准号: 07672108
• 负责人: MORIZAWA Masayuki
• 金额: $ 0.13万
• 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 Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07672108/
• 关键词: Soft lining Material; Complete Denture; Mastication; Occlusal Contact; Masticatory Movement; 筋電図

Soft lining materials have been used clinically for complete denture wearers with severely atrophic residual ridge and chronic pain. Even though this kind of material has been working successfully, the mechanism has not been clearly demonstrated yet.The purpose of this study is to investigate the influence of soft lining material on occlusal contacts of complete dentures. 71 aged edentulous female was selected for this study. After occlusal adjustment of complete dentures was completed, occlusal surfaces were replaced by metal with the same occlusal countour. Occlusal contacts were investigated in the premolar and the molar regions (Control). Then this mandibular complete denture was relined with soft linig material (Krepeet dough, Kurecha) and occlusal contacts were also investigated in the same way (S Type).The results were as follows :1. The frequency of mastication using S Type was decreasing in comparison with Control.2. In the nonworking side, duration of occlusal contact in the first term of mastication of S Type was short in comparison with Control.3. Time lag of difference of beginning of occlusal contact between the working side and the nonworking side of S Type was short in comparison with Control.These results suggested that soft lining material decreased the mobility of complete dentures and that use of soft lining material was one of efective options for improvement of masticatory function of complete denture wearers.

软衬材料在临床上已被用于严重萎缩的残留牙槽嵴和慢性疼痛的全口义齿佩戴者。本研究旨在探讨软衬材料对全口义齿咬合接触的影响。71例老年无牙颌女性患者。全口义齿调牙合完成后，用金属材料替换牙合面，使牙合面轮廓保持不变。在前磨牙和磨牙区域（对照）中研究咬合接触。然后用软衬材料（Krepeet dough，Kurecha）对下颌全口义齿进行再衬，并以同样的方法（S型）对咬合接触进行研究。与对照组相比，S型咀嚼频率降低.在非工作侧，S型患者咀嚼第一阶段的咬合接触时间短于对照组. S型患者工作侧与非工作侧咬合接触开始时间差较对照组短，提示软衬材料降低了全口义齿的活动度，是改善全口义齿咀嚼功能的有效方法之一。

项目成果

Masayuki, Morizawa: "Chewing Movements of Complete Dentures using Soft Lining Material" The Journal of the Japan Prosthodontic Society. 40.96th special issue. 120 (1996)

Masayuki, Morizawa：“使用软衬里材料的全口假牙的咀嚼运动”日本修复学会杂志。

守澤正幸: "軟質裏装材を使用した全部床義歯の咀嚼運動に関する研究" 日本補綴歯科学会雑誌. 40巻・96回特別号. -120 (1996)

Masayuki Morisawa：“使用软衬里材料的全口假牙的咀嚼运动”，日本修复医学会杂志，第 40 卷，特刊第 96 期（1996 年）。