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Journal of Dental Research, Dental Clinics, Dental prospects، جلد ۱۰، شماره ۲، صفحات ۰-۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets
چکیده انگلیسی مقاله Introduction: Any decrease in friction between orthodontic wire and bracket can accelerate tooth movement in the sliding technique and result in better control of anchorage. The present study was carried out to decrease this friction by coating of zinc oxide nanoparticles (ZnO) on orthodontic wires and porcelain brackets. Materials and methods: In this in vitro study, a combination of 120 0.019×0.025 stainless steel(SS) orthodontic wires and porcelain brackets of 0.022 system with and without spherical zinc oxide nanoparticle coating were evaluated. Spherical ZnO nanoparticles were deposited on wires and brackets by immersing them in ethanol solution and SEM (scanning electron microscope) evaluation confirmed the presence of the ZnO coating. The frictional forces were calculated between the wires and brackets in four groups: group ZZ (coated wire and bracket), group OO (uncoated wire and bracket), group ZO (coated wire and uncoated bracket) and group OZ (uncoated wire and coated bracket).Kolmogorov-Smirnov, Kruskal-Wallis and Mann-Whitney tests were used for data analysis. Results: The frictional force in ZZ (3.07±0.4 N) was the highest (p< 0.05) and OZ (2.18±0.5 N) had the lowest amount of friction(p< 0.05) between the groups .There was no significant difference in the frictional forces between the ZO and OO groups 2.65±0.2and 2.70±0.2 N respectively . Conclusion: The coating of ZnO nanoparticles on the surface of porcelain brackets can decrease friction in the sliding technique . Key words: friction , orthodontics, porcelain, wire, ZnO
کلیدواژه‌های انگلیسی مقاله friction,orthodontics,porcelain,wire,ZnO
نویسندگان مقاله احمد بهروزیان | ahmad behroozian
assistant professor, department of orthodontics,dental school, tabriz university of medical sciences,iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (Tabriz university of medical sciences)

مژگان کچویی | mojgan kachoei
associate professor, department of orthodontics,dental school, tabriz university of medical sciences,iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (Tabriz university of medical sciences)

معصومه خاتمیان | masumeh khatamian
professor ,inorganic chemistry department, faculty of chemistry, university of tabriz

سازمان اصلی تایید شده: دانشگاه تبریز (Tabriz university)

بهارک دیوبند | baharak divband
post hoc researcher,research center for pharmaceutical nanotechnology, tabriz university of medical sciences

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (Tabriz university of medical sciences)

نشانی اینترنتی http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/2497
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/183/article-183-319637.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Original Article
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