| Autor: |
Merazul Haque, Rajani Dable, Puneet Mutneja, AP Nirmal Raj, Spardha P Shrivastava, Sparsh B Srivastava |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
The Journal of Contemporary Dental Practice. 22:179-183 |
| ISSN: |
1526-3711 |
| Popis: |
AIM Evaluation and comparison of flexural strength and hardness of heat-cured polymethylmethacrylate (PMMA) denture base with polyetheretherketone (PEEK). MATERIAL AND METHODS A total of 80 samples of PEEK and PMMA were prepared and divided into two groups: group A and group B, of 40 each. Both the groups were further divided into subgroups consisting of 20 samples of PMMA and PEEK. The group A specimens were tested for flexural strength by universal testing machine (UTM), and group B samples were subjected to hardness test using Vickers microhardness tester. The values obtained were subjected to statistical analysis. The readings were subjected to an unpaired t-test for comparison of flexural strength and hardness of PEEK and PMMA. RESULT The flexural strength of PEEK was 183 MPa, while that of PMMA was 84 MPa. The hardness of PEEK and PMMA was 24 VHN and 19.4 VHN, respectively. CONCLUSION It was observed that PEEK can be a potential denture base material with superior properties as compared to PMMA. Further researches are needed to be carried out. CLINICAL SIGNIFICANCE PEEK as a denture base exhibits adequate flexural strength prolonging its clinical longevity and overcoming the most common reason for the failure of PMMA denture base that results in fracture. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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