این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Journal of Dentistry, Shiraz University of Medical Sciences، جلد ۱۸، شماره ۴، صفحات ۲۷۷-۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی The Effect of Autoclave Sterilization on Resistance to Cyclic Fatigue of Hero Endodontic File #642 (6%) at Two Artificial Curvature
چکیده انگلیسی مقاله Statement of the Problem: File fracture can interfere with cleaning and shaping of the canal and compromise periradicular healing. Autoclave sterilization may prone the files to fracture. Purpose: The purpose of the present study was to determine the effect of autoclave sterilization on the cyclic fatigue resistance of Hero642 rotary instrument in two curvatures of 45 and 60 degrees. Materials and Method: For this experimental in-vitro study, 90 Nickel-Titanium HERO 642 rotary files #30 with 0.06 taper were selected. They were divided into two groups (curvature of 45 and 60 degree) of 45 files. Each group was then subdivided into 3 subgroups; group I: no sterilization, group II: 5 cycles of sterilization and group III: 10 cycles of sterilization. Files were used in artificial canals until fracture. The cyclic fatigue was measured as the number of cycles before fracture. The data was statically analyzed by Student’s t-test and two-way analysis of variance. Results: There was a significant difference in cyclic fatigue of two curvature of 45 and 60 degrees ( p = 0.001). However, sterilization process has no significant effect on cyclic fatigue of HERO files ( p = 0.557). Conclusion: Sterilization had no effect on the cyclic fatigue of HERO 642 files when used in curvature of 45 or 60 degrees.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله مسعود خبیری | masoud khabiri
dept. of endodontic, dental school, isfahan khorasgan branch, islamic azad university, isfahan, iran.

سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

مازیار ابراهیمی | maziar ebrahimi
dept. of endodontic, dental school, isfahan khorasgan branch, islamic azad university, isfahan, iran.

سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

محمدرضا ساعی | mohammad reza saei


نشانی اینترنتی http://dentjods.sums.ac.ir/index.php/JDSUMS/article/view/1564
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Articles
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