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Journal of Dental Research, Dental Clinics, Dental prospects، جلد ۶، شماره ۳، صفحات ۷۹-۸۴
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عنوان انگلیسی Effect of duration of irrigation with sodium hypochlorite in clinical protocol of MTAD on removal of smear layer and creating dentinal erosion
چکیده انگلیسی مقاله Background and aims. The aim of the present study was to compare 1.3% sodium hypochlorite (NaOCl) in MTAD (mixture of tetracycline isomer, acid, and detergent) for the removal of the smear layer and induction of canal erosion. Materials and methods. 38 maxillary incisors were divided in three experimental groups of 10 and two positive and negative control groups of each 4 teeth, and prepared using rotary files. In test groups, 1.3% NaOCl was used for 5, 10 and 20 minutes during preparation followed by MTAD as the final rinse. In negative control group, 5.25% NaOCl was used for 10 minutes followed by 17% Ethylenediamine Tetra-Acetic Acid (EDTA) as the final rinse. In positive control group, dis-tilled water was used for 10 minutes during preparation and then as the final rinse. The samples were examined under scan-ning electron microscope, and the smear layer and dentinal erosion scores were recorded. Results. Five and 10 min groups had significant differences with 20 min group (p < 0.05). In apical third, 5 and 10 min groups had also significant differences with 20 min (p < 0.05). In the coronal thirds, when the time of irrigation with 1.3% NaOCl increased from 5 min to 20 min, erosion also increased significantly. However, 5 and 10 min groups had no signifi-cant differences with negative control group. Conclusion. The use of 1.3% sodium hypochlorite for 5 and 10 minutes in the MTAD protocol removes the smear layer in the coronal and middle thirds but does not induce erosion.
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نویسندگان مقاله مهرداد لطفی | mehrdad lotfi
1dmd, msc, research center for pharmaceutical nanotechnology, endodontic department, dental school, tabriz university ms

سازمان اصلی تایید شده: دانشگاه تبریز (Tabriz university)

نگار مقدم | negar moghaddam
2dmd, endodontic department, dental school, tabriz university ms

سازمان اصلی تایید شده: دانشگاه تبریز (Tabriz university)

سپیده وثوق حسینی | sepideh vosoughhosseini
3dmd, msc, department of oral and maxillofacial pathology, dental school, tabriz university ms

سازمان اصلی تایید شده: دانشگاه تبریز (Tabriz university)

وحید زند | vahid zand
4dmd, msc, endodontic department, dental school, tabriz university ms

سازمان اصلی تایید شده: دانشگاه تبریز (Tabriz university)

محمد علی صغیری | mohammad ali saghiri
5kamal asgar reseach center karc , azad university, dental branch, tehran, iran.
نشانی اینترنتی http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/428
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/183/article-183-319795.pdf
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Article
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