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Information Journal Paper

Title

WATER SORPTION AND FLEXURAL STRENGTH OF THERMOPLASTIC AND CONVENTIONAL HEAT-POLYMERIZED ACRYLIC RESINS

Pages

  478-484

Abstract

 Objectives: The aim of this study was to assess and compare the WATER sorption and flexural STRENGTH of thermoplastic and conventional ACRYLIC RESINS.Materials and Methods: WATER sorption and flexural STRENGTH were compared between a thermoplastic modified POLYMETHYL METHACRYLATE (PMMA) denture base resin (group A) and a heat-polymerized PMMA acrylic resin (group B) as the control group (n=10). A three-point bending test was carried out for flexural STRENGTH testing. For WATER sorption test, 10 disc-shaped samples were prepared. After desiccating, the samples were weighed and immersed in distilled WATER for seven days. Then, they were weighed again, and desiccated for the second and third times. Differences between the mean values in the two groups were analyzed using Student's t-test.Results: The mean value of WATER sorption was 14.74±1.36 mg/mm3 in group A, and 19.11±0.90 mg/mm3 in group B; this difference was statistically significant (P<0.001). The mean value of flexural STRENGTH was 88.21±8.63 MPa in group A and 77.77±9.49 MPa in group B. A significant difference was observed between the two groups (P=0.019).Conclusion: Flexural STRENGTH of group A was significantly higher than that of group B, and its WATER sorption was significantly lower. Thus, thermoplastic resins can be a suitable alternative to conventional PMMA ACRYLIC RESINS as denture base materials.

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    APA: Copy

    HEMMATI, MOHAMMAD ALI, VAFAEE, FARIBORZ, & ALLAHBAKHSHI, HANIF. (2015). WATER SORPTION AND FLEXURAL STRENGTH OF THERMOPLASTIC AND CONVENTIONAL HEAT-POLYMERIZED ACRYLIC RESINS. FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES), 12(7), 478-484. SID. https://sid.ir/paper/298015/en

    Vancouver: Copy

    HEMMATI MOHAMMAD ALI, VAFAEE FARIBORZ, ALLAHBAKHSHI HANIF. WATER SORPTION AND FLEXURAL STRENGTH OF THERMOPLASTIC AND CONVENTIONAL HEAT-POLYMERIZED ACRYLIC RESINS. FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2015;12(7):478-484. Available from: https://sid.ir/paper/298015/en

    IEEE: Copy

    MOHAMMAD ALI HEMMATI, FARIBORZ VAFAEE, and HANIF ALLAHBAKHSHI, “WATER SORPTION AND FLEXURAL STRENGTH OF THERMOPLASTIC AND CONVENTIONAL HEAT-POLYMERIZED ACRYLIC RESINS,” FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES), vol. 12, no. 7, pp. 478–484, 2015, [Online]. Available: https://sid.ir/paper/298015/en

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