In vitro Study on the Flexural Strength of Different Polymethyl Methacrylate Denture Resins
Background: Denture resins made of polymethyl methacrylate (PMMA) are often utilized because of their cost, aesthetic appeal, and simplicity of production. However, their mechanical characteristics, specifically, their flexural strength, are problematic, particularly when used in therapeutic setting...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2025-06-01
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| Series: | Journal of Pharmacy and Bioallied Sciences |
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| Online Access: | https://journals.lww.com/10.4103/jpbs.jpbs_265_25 |
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| author | Rajul Vivek Alok Ranjan Shaiq Gajdhar Vaibhavi Parikshit Salunkhe Smita Chaware Vinay Rao |
| author_facet | Rajul Vivek Alok Ranjan Shaiq Gajdhar Vaibhavi Parikshit Salunkhe Smita Chaware Vinay Rao |
| author_sort | Rajul Vivek |
| collection | DOAJ |
| description | Background:
Denture resins made of polymethyl methacrylate (PMMA) are often utilized because of their cost, aesthetic appeal, and simplicity of production. However, their mechanical characteristics, specifically, their flexural strength, are problematic, particularly when used in therapeutic settings for an extended period of time. The flexural strength of three PMMA denture resins that are sold commercially is assessed and contrasted in this research.
Materials and Methods:
In vitro tests were conducted on three different kinds of PMMA denture resins (Brands A, B, and C). By ISO 20795-1:2013 guidelines, 45 specimens (15 in each group) with measurements of 65 mm × 10 mm × 3 mm were created. To replicate oral circumstances, specimens were thermocyclically heated (5°C to 55°C) for 5,000 cycles after being polymerized in accordance with the manufacturer’s instructions. A universal testing machine was used to perform a three-point bending test at a crosshead speed of 5 mm/min to assess flexural strength. Flexural strength (MPa) was calculated by recording the maximal force at fracture. Tukey’s post-hoc test and one-way ANOVA were used for statistical analysis.
Results:
Brands A, B, and C have mean flexural strength values (±SD) of 65.3 ± 5.2 MPa, 72.5 ± 4.8 MPa, and 68.1 ± 6.0 MPa, respectively. The flexural strength of Brand B was substantially greater than that of Brands A and C (P < 0.05). But there was no discernible difference between Brands A and C (P > 0.05).
Conclusion:
In terms of mechanical durability, Brand B is a better option for denture bases since it showed the highest flexural strength among the evaluated materials. To assess other characteristics like impact strength and biocompatibility in clinical settings, further research is advised. |
| format | Article |
| id | doaj-art-a46f6c267bf24943bbf2fdbbbe6ea849 |
| institution | DOAJ |
| issn | 0976-4879 0975-7406 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Journal of Pharmacy and Bioallied Sciences |
| spelling | doaj-art-a46f6c267bf24943bbf2fdbbbe6ea8492025-08-20T03:15:19ZengWolters Kluwer Medknow PublicationsJournal of Pharmacy and Bioallied Sciences0976-48790975-74062025-06-0117Suppl 2S1695S169710.4103/jpbs.jpbs_265_25In vitro Study on the Flexural Strength of Different Polymethyl Methacrylate Denture ResinsRajul VivekAlok RanjanShaiq GajdharVaibhavi Parikshit SalunkheSmita ChawareVinay RaoBackground: Denture resins made of polymethyl methacrylate (PMMA) are often utilized because of their cost, aesthetic appeal, and simplicity of production. However, their mechanical characteristics, specifically, their flexural strength, are problematic, particularly when used in therapeutic settings for an extended period of time. The flexural strength of three PMMA denture resins that are sold commercially is assessed and contrasted in this research. Materials and Methods: In vitro tests were conducted on three different kinds of PMMA denture resins (Brands A, B, and C). By ISO 20795-1:2013 guidelines, 45 specimens (15 in each group) with measurements of 65 mm × 10 mm × 3 mm were created. To replicate oral circumstances, specimens were thermocyclically heated (5°C to 55°C) for 5,000 cycles after being polymerized in accordance with the manufacturer’s instructions. A universal testing machine was used to perform a three-point bending test at a crosshead speed of 5 mm/min to assess flexural strength. Flexural strength (MPa) was calculated by recording the maximal force at fracture. Tukey’s post-hoc test and one-way ANOVA were used for statistical analysis. Results: Brands A, B, and C have mean flexural strength values (±SD) of 65.3 ± 5.2 MPa, 72.5 ± 4.8 MPa, and 68.1 ± 6.0 MPa, respectively. The flexural strength of Brand B was substantially greater than that of Brands A and C (P < 0.05). But there was no discernible difference between Brands A and C (P > 0.05). Conclusion: In terms of mechanical durability, Brand B is a better option for denture bases since it showed the highest flexural strength among the evaluated materials. To assess other characteristics like impact strength and biocompatibility in clinical settings, further research is advised.https://journals.lww.com/10.4103/jpbs.jpbs_265_25denture resinsflexural strengthin vitro studypolymethyl methacrylatethree-point bending test |
| spellingShingle | Rajul Vivek Alok Ranjan Shaiq Gajdhar Vaibhavi Parikshit Salunkhe Smita Chaware Vinay Rao In vitro Study on the Flexural Strength of Different Polymethyl Methacrylate Denture Resins Journal of Pharmacy and Bioallied Sciences denture resins flexural strength in vitro study polymethyl methacrylate three-point bending test |
| title | In vitro Study on the Flexural Strength of Different Polymethyl Methacrylate Denture Resins |
| title_full | In vitro Study on the Flexural Strength of Different Polymethyl Methacrylate Denture Resins |
| title_fullStr | In vitro Study on the Flexural Strength of Different Polymethyl Methacrylate Denture Resins |
| title_full_unstemmed | In vitro Study on the Flexural Strength of Different Polymethyl Methacrylate Denture Resins |
| title_short | In vitro Study on the Flexural Strength of Different Polymethyl Methacrylate Denture Resins |
| title_sort | in vitro study on the flexural strength of different polymethyl methacrylate denture resins |
| topic | denture resins flexural strength in vitro study polymethyl methacrylate three-point bending test |
| url | https://journals.lww.com/10.4103/jpbs.jpbs_265_25 |
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