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Journal of Dentistry, Shiraz University of Medical Sciences، جلد ۱۷، شماره ۲، صفحات ۱۲۱-۰
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| عنوان انگلیسی |
Effect of Nanoclay on Thermal Conductivity and Flexural Strength of Polymethyl Methacrylate Acrylic Resin |
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| چکیده انگلیسی مقاله |
Statement of the Problem: The mechanical and thermal properties of polymethyl methacrylate (PMMA) acrylic resin should be improved to counterweigh its structural deficiencies. Purpose: The aim of this study was to compare the flexural strength and thermal conductivity of conventional acrylic resin and acrylic resin loaded with nanoclay. Materials and Method: The methacrylate monomer containing the 0.5, 1 and 2 wt% of nanoclay was placed in an ultrasonic probe and mixed with the PMMA powder. Scanning electron microscopy was used to verify homogeneous distribution of particles. Twenty-four 20×20×200-mm cubic samples were prepared for flexural strength test; 18 samples containing nanoclay and 6 samples for the control group. Another 24 cylindrical samples of 38×25 mm were prepared for thermal conductivity test. One-way ANOVA was used for statistical analysis, followed by multiple-comparison test (Scheffé’s test). Statistical significance was set at p < 0.05. Results: Increasing the concentration of nanoclay incorporated into the acrylic resin samples increased thermal conductivity but decreased flexural strength ( p < 0.05). Conclusion: Based on the results of this study, adding nanoclay particles to PMMA improved its thermal conductivity, while it had a negative effect on the flexural strength. Keywords ● Polymethyl Methacrylate ● Nanoparticles ● Thermal Conductivity ● Flexural Strength |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
طاهره غفاری | tahereh ghaffari
periodontal research center, dept. of prosthodontics, tabriz university of medical sciences, tabriz, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (Tabriz university of medical sciences)
علی برزگر | ali barzegar
dept. of prosthodontics, faculty of dentistry, qom university of medical sciences, qom, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی قم (Qom university of medical sciences)
فهیمه حامدی راد | fahimeh hamedi rad
periodontal research center, dept. of prosthodontics, tabriz university of medical sciences, tabriz, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (Tabriz university of medical sciences)
الناز مصلحی فرد | elnaz moslehifard
periodontal research center, dept. of prosthodontics, tabriz university of medical sciences, tabriz, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (Tabriz university of medical sciences)
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| نشانی اینترنتی |
http://dentjods.sums.ac.ir/index.php/JDSUMS/article/view/1096 |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
Original Article |
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