European Oral Research

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Research Article


DOI :10.26650/eor.20190072   IUP :10.26650/eor.20190072    Full Text (PDF)

Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin

N. Gopi Chander, Venkatraman Jayaraman, Venkat Sriram

Purpose 
The aim of this study was to compare the differences between the ASTM D790 and ISO 20795.1.2013 standards in evaluating the flexural strength of heat cure poly methyl methacrylate (PMMA) denture base resin. 

Materials and Methods
30 heat cure denture base samples were fabricated in accordance to ISO 20795.1.2013 and ASTM D790 Standards. The specimens were finished and stored following the standardized protocol. The flexural strength was determined using universal testing machine at cross head speed of 1.50 mm/min and a span length of 40.00 mm. The mean flexural strength values were calculated in megapascals (MPa), and statistically analyzed. 

Results
The mean flexural strength of heat cure PMMA found with ISO and ASTM ranged between 60.492 MPa and 61.470 MPa. There was no significant difference between the two methods. 

Conclusion The quantitative differences existed in the flexural strength of denture base resin between ISO 20795.1.2013 and ASTM 790 protocols but those
differences had no statistical and clinical significance. 
Keywords: ISO, ASTM, denture base, poly methyl methacrylate, resin

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References

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Citations

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APA

Chander, N.G., Jayaraman, V., & Sriram, V. (2019). Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin. European Oral Research, 53(3), 137-140. https://doi.org/10.26650/eor.20190072


AMA

Chander N G, Jayaraman V, Sriram V. Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin. European Oral Research. 2019;53(3):137-140. https://doi.org/10.26650/eor.20190072


ABNT

Chander, N.G.; Jayaraman, V.; Sriram, V. Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin. European Oral Research, [Publisher Location], v. 53, n. 3, p. 137-140, 2019.


Chicago: Author-Date Style

Chander, N. Gopi, and Venkatraman Jayaraman and Venkat Sriram. 2019. “Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin.” European Oral Research 53, no. 3: 137-140. https://doi.org/10.26650/eor.20190072


Chicago: Humanities Style

Chander, N. Gopi, and Venkatraman Jayaraman and Venkat Sriram. “Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin.” European Oral Research 53, no. 3 (May. 2024): 137-140. https://doi.org/10.26650/eor.20190072


Harvard: Australian Style

Chander, NG & Jayaraman, V & Sriram, V 2019, 'Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin', European Oral Research, vol. 53, no. 3, pp. 137-140, viewed 12 May. 2024, https://doi.org/10.26650/eor.20190072


Harvard: Author-Date Style

Chander, N.G. and Jayaraman, V. and Sriram, V. (2019) ‘Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin’, European Oral Research, 53(3), pp. 137-140. https://doi.org/10.26650/eor.20190072 (12 May. 2024).


MLA

Chander, N. Gopi, and Venkatraman Jayaraman and Venkat Sriram. “Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin.” European Oral Research, vol. 53, no. 3, 2019, pp. 137-140. [Database Container], https://doi.org/10.26650/eor.20190072


Vancouver

Chander NG, Jayaraman V, Sriram V. Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin. European Oral Research [Internet]. 12 May. 2024 [cited 12 May. 2024];53(3):137-140. Available from: https://doi.org/10.26650/eor.20190072 doi: 10.26650/eor.20190072


ISNAD

Chander, N.Gopi - Jayaraman, Venkatraman - Sriram, Venkat. “Comparison of ISO and ASTM standards in determining the flexural strength of denture base resin”. European Oral Research 53/3 (May. 2024): 137-140. https://doi.org/10.26650/eor.20190072



TIMELINE


Submitted28.11.2018
Accepted21.03.2019
Published Online10.09.2019

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