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粘弾性解析法と衝撃試験法を用いた軟質裏装材の効果的な裏装法の検討

利用粘弹性分析法和冲击试验法研究软衬材料的有效衬砌方法

基本信息

批准号：
06771824
负责人：
河野文昭
金额：
$ 0.58万
依托单位：
The University of Tokushima
依托单位国家：
日本
项目类别：
Grant-in-Aid for Encouragement of Young Scientists (A)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至无数据
项目状态：
已结题

项目摘要

本研究では、軟質裏装材の裏装法がその機能に及ぼす影響を検討するために粘弾性解析法と衝撃試験法を用いた.粘弾性解析のモデルは下顎第一大臼歯部相当部の無歯顎顎堤と義歯から構成され、義歯床には軟質裏装材を3種類の異なる方法(裏装法1.義歯床辺縁を軟質裏装材で被う方法、裏装法2.粘膜面は軟質裏装材で被うが義歯床辺縁は被わない方法、裏装法3.人工歯と義歯床の間に軟質裏装材をはさむ方法(サンドイッチ法))で裏装し,異なる2種類の軟質裏装材の裏装を想定し解析を行った。本解析では顎粘膜と軟質裏装材を粘弾性材料として取り扱った.その結果、義歯床下粘膜の応力分布は軟質裏装材の裏装法によって影響を受け、義歯床辺縁を全て被うよりむしろ辺縁を裏装しない方が粘膜及び支持組織内の応力分布が均等化する傾向を示した.また、クリープ変形が大きな軟質裏装材の場合,支持骨内の応力値が大きくなる傾向を示し,長期使用による大きな支持組織の骨吸収が懸念され,長期的な予後観察の必要性が示唆された.一方、衝撃試験は、性状の異なる3種類の軟質裏装材、SuperSoft,Kurepeet-Dough,Mollop last-Bを用いて行い,粘弾性解析と同様の裏装法による試料を作製し衝撃加速度から衝撃緩衝能を比較した.その結果、どの裏装法でもレジン床に比べて,衝撃緩衝能は大きくなり,Kurepeet-Dough,SuperSoftでは,裏装法2の場合が効果的な裏装法であった.一方,Molloplast-Bは,裏装法の場合が最も効果的な裏装法であり,軟質裏装材の性状によって効果的な裏装法が代わることが示された.

In this study, the function and influence of lining method on soft lining materials were discussed, and the viscosity analysis method and impact test method were used. There are three different methods for viscosity analysis: the structure of the toothless jaw dam corresponding to the first mandibular condyle and the prosthetic tooth, and the soft lining material of the prosthetic tooth bed.(1) The method of lining 1. The method of lining the soft lining material of the artificial dental bed 2. The method of lining the soft lining material of the artificial dental bed 3. The method of lining the soft lining material of the artificial dental bed 3. The method of lining the soft lining material of the artificial dental bed 3. The method of lining the soft lining material of the artificial dental bed 3. This paper analyzes the adhesive film and soft lining material and viscous material. The results show that the stress distribution in the mucosa under the dental implant is affected by the lining method of soft lining material, and the stress distribution in the mucosa and supporting tissue tends to equalize. In the case of soft lining material, the strength value of supporting bone tends to increase, and the bone absorption of supporting tissue is worried after long-term use, and the necessity of long-term post-inspection is indicated. Three kinds of soft lining materials, SuperSoft,Kurepeet-Dough,Mollop last-B, were used in the test, impact test, impact acceleration, impact damping energy, viscosity analysis and the same lining method. As a result, the inner mounting method is more effective than the outer mounting method, and the impact damping energy is greater than the outer mounting method. Kurepet-Dough,SuperSoft, Inner mounting method 2 is the case. On the one hand,Molloplast-B is the most effective lining method for lining occasions, and the most effective lining method for soft lining materials is also shown.