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Environmental Stress Cracking of Heat-cured Denture Base Resin : Effect of Environmental Solutions and Their Concentrations
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- NISHIKAWA Motonori
- Department of Dental Materials & Technology, School of Dentistry, Asahi University
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- GOTO Takayasu
- Department of Dental Materials & Technology, School of Dentistry, Asahi University
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- ADACHI Masanori
- Department of Dental Materials & Technology, School of Dentistry, Asahi University
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- WAKAMATSU Nobukazu
- Department of Dental Materials & Technology, School of Dentistry, Asahi University
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- KAMEMIZU Hideo
- Department of Dental Materials & Technology, School of Dentistry, Asahi University
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- IIJIMA Mayumi
- Department of Dental Materials & Technology, School of Dentistry, Asahi University
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- DOI Yutaka
- Department of Dental Materials & Technology, School of Dentistry, Asahi University
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- MORIWAKI Yutaka
- Department of Dental Materials & Technology, School of Dentistry, Asahi University
Bibliographic Information
- Other Title
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- 義歯床用加熱重合レジンの環境応力割れ : 環境溶液の種類および濃度による影響
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Description
This study was undergone to find the cause of crack growth of denture-based heat cured resin. By measuring the crack growth of precracked specimens in the three point bending constant load test, the effects of environmental solutions(ethanol, acetic acid, lactic acid, citric acid, acetone, NaCl, ascorbic acid and distilled water)and their concentrations were investigated. The results suggested that these solutions, in addition to stress would participate in the crack growth of the denture base. Considering that both ethanol and acetic acid had especially great effects, it was determined that alcoholic drinks and dishes with vinegar promote crack growth. Furthermore, the crack growth rate reduced with time in other environmental solutions because the stress was dispersed by many microcracks formed around the main crack. It was considered that these cracks would from new starting points for crack growth with increasing load.
Journal
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- The Journal of the Japanese Society for Dental Materials and Devices
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The Journal of the Japanese Society for Dental Materials and Devices 19 (3), 339-346, 2000-05-25
The Japanese Society for Dental Materials and Devices
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Keywords
Details 詳細情報について
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- CRID
- 1390001288069923584
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- NII Article ID
- 110002990285
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- NII Book ID
- AN00127279
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- ISSN
- 21884188
- 02865858
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed
