کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5313 366 2016 7 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Highly wear-resistant and biocompatible carbon nanocomposite coatings for dental implants
ترجمه فارسی عنوان
پوشش های نانوکامپوزیتی کربن و زیست سازگار بسیار مقاوم در برابر سایش برای ایمپلنت های دندانی
کلمات کلیدی
نانوکامپوزیت کربن؛ زیست سازگاری؛ مقاومت در برابر سایش؛ کاشت دندان؛ در داخل بدن
Carbon nanocomposite; Biocompatibility; Wear resistance; Dental implants; In vivo
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی

Diamond-like carbon coatings are increasingly used as wear-protective coatings for dental implants, artificial joints, etc. Despite their advantages, they may have several weak points such as high internal stress, poor adhesive properties or high sensitivity to ambient conditions. These weak points could be overcome in the case of a new carbon nanocomposite coating (CNC) deposited by using a C60 ion beam on a Co/Cr alloy. The structure of the coatings was investigated by Raman and XPS spectroscopy. The wear resistance was assessed by using a reciprocating tribotester under the loads up to 0.4 N in both dry and wet sliding conditions. Biocompatibility of the dental implants was tested in vivo on rabbits. Biocompatibility, bioactivity and mechanical durability of the CNC deposited on a Co/Cr alloy were investigated and compared with those of bulk Co/Cr and Ti alloys. The wear resistance of the CNC was found to be 250–650 fold higher compared to the Co/Cr and Ti alloys. Also, the CNC demonstrated much better biological properties with respect to formation of new tissues and absence of negative morphological parameters such as necrosis and demineralization. Development of the CNC is expected to aid in significant improvement of lifetime and quality of implants for dental applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomaterials - Volume 102, September 2016, Pages 130–136
نویسندگان
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