| Autor: |
Chika Sasayama, Hidetoshi Taniuchi, Tetsuya Takamata, Takao Kasahara, Shingo Kagiya, Kouichi Komeda, Masahito Shoumura, Naoto Osuga, Sakae Nagasawa, Takami Iwasaki, Mihoko Tomida |
| Předmět: |
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| Zdroj: |
International Journal of Sports Dentistry; 2014, Vol. 7 Issue 1, p063-076, 14p |
| Abstrakt: |
The purpose of this study was 1) to evaluate the physical and mechanical properties, adaptation and water uptake of a silicone-based material for sports mouthguards vulcanized using a microwave oven, and 2) to compare these microwave-vulcanized mouthguards with room temperature vulcanized material. Furthermore, we describe a step-by-step procedure for making these mouthguards in a clinical setting. A disadvantage of silicone materials is their slow vulcanization. The use of a microwave oven for the rapid vulcanization of silicone-based material in the construction of sports mouthguards can reduce fabrication time by 1 to 3 hours. Flowever, the physical properties, adaptation, and water uptake of silicone materials after vulcanization by microwave irradiation have yet to be studied. A fiber reinforcement plastic (FRP) flask was used for the microwave oven irradiation. Specimens for testing the physical properties of the vulcanized silicone were made according to the JIS K6253 standard for Durometer A hardness. The tear strength specimen was made as prescribed by the JIS K6252 standards. The shock absorbing test and hardness test used specimens of the same size. The physical property tests showed that microwave oven vulcanized silicone exhibited significantly greater hardness and tear strength than room temperature vulcanized silicone, whereas the adaptability and water uptake of silicone materials prepared by room temperature and microwave oven vulcanization were not significantly different. We also provide step-by-step procedures for the fabrication of silicone-based mouthguards in clinics. Microwave oven vulcanization can decrease the time required for fabrication, although more clinically based studies are required. [ABSTRACT FROM AUTHOR] |
| Databáze: |
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