EVALUATION OF THERMOPLASTIC FLEXIBLE RESINS WEAR BEHAVIOR
Aim of the study is to compare three different thermoplastic resins used for flexible removable dentures based on their wear behavior. Materials and methods 24 samples with a thickness of 2 mm were obtained using injected thermoplastic resins. The wear test was performed for half an hour with a forc...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Romanian Society of Oral Rehabilitation
2025-06-01
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| Series: | Romanian Journal of Oral Rehabilitation |
| Online Access: | https://rjor.ro/evaluation-of-thermoplastic-flexible-resins-wear-behavior/ |
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| Summary: | Aim of the study is to compare three different thermoplastic resins used for flexible removable dentures based on their wear behavior. Materials and methods 24 samples with a thickness of 2 mm were obtained using injected thermoplastic resins. The wear test was performed for half an hour with a force of 30 N using a stainless steel and a zirconia sphere. Two environments were selected for this study, a dry and a wet one with one lubricant that simulates the saliva. Statistical analysis was carried out using one one-way ANOVA test. Image J program was used to calculate the radius for every wear mark with an optical microscope. Results revealed changes for every material, the zirconia sphere in a dry environment and for the stainless steel sphere after applying lubricants. After half an hour there was no statisitically significant weight loss among the samples (p≤.05), but there were changes in their surface in the optical microscopy. Conclusions: Zirconia produced clearer wear marks on the resin samples compared to the stainless steel ball. The glycerine- lubricant icreases the wear when using a stainless steel sphere.
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| ISSN: | 2066-7000 2601-4661 |