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Iranian Journal of Materials Science and Engineering، جلد ۱۶، شماره ۴، صفحات ۰-۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Simulated Porcelain Firing of CO-CR Alloy
چکیده انگلیسی مقاله The aim of the present study is to assess the hardness, corrosion, and cytotoxicity of a commercially available cobalt-chromium (Co-Cr) alloy before and after simulated heat treatments at porcelain firing temperature. Five Co-Cr samples were fabricated using lost wax casting procedure. Heat treatments were carried out at 650°C, 750°C, 850°C, and 950°C. Vickers hardness was measured for as-cast and heat treated samples. The corrosion test was carried out separately in 0.1 N NaCl, 1% citric acid and artificial saliva at room temperature using potentiodynamic polarization technique. Gingival tissue biopsy of patients was taken and cultured to measure the cell viability by MTT colorimetric assay. Lowest hardness was observed at 650°C. 0.1 N NaCl and 1% citric acid corrosion medium showed a similar trend of corrosion rate. The least corrosion rate was found in artificial saliva. Firing temperature has an impact on the physical, chemical and biological properties of Co-Cr alloy in long-term clinical use.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله | V. Dave
Department of Dental Materials, Manipal College of Dental Sciences, Mangalore


| R. Kotian
Department of Dental Materials, Manipal College of Dental Sciences, Mangalore


| P. Madhyastha
Department of Dental Materials, Manipal College of Dental Sciences, Mangalore


| K. Boaz
Department of Oral Pathology and Microbiology, Manipal College of Dental Sciences, Mangalore


| P. Rao
Department of Chemistry, Manipal Institute of Technology, Manipal


| B.P. Charitha
School of Graduate Sciences, Jain University.
نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-2025-1&slc_lang=en&sid=1
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/454/article-454-2014104.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده گروه سرامیک
نوع مقاله منتشر شده Research paper
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