کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3169321 1199463 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of chlorhexidine and sodium hypochlorite on the microhardness of root canal dentin
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
پیش نمایش صفحه اول مقاله
Effects of chlorhexidine and sodium hypochlorite on the microhardness of root canal dentin
چکیده انگلیسی

ObjectiveThe purpose of this study was to evaluate the effects of endodontic irrigants on the microhardness of root canal dentin.Study designThirty extracted single-rooted human teeth were used. The crowns were sectioned at the cementoenamel junction. Each root was transversely sectioned into cervical, middle, and apical segments, resulting in 90 specimens. The 3 sections of each root were separately mounted in an individual silicon device with acrylic resin. The specimens were randomly divided into the following 3 groups (n = 30), according to the irrigant solution used: (1) group 1, control (saline solution); (2) group 2, 2% chlorhexidine gluconate solution; and (3) group 3, 1% sodium hypochlorite (NaOCl). After 15 minutes of irrigation, dentin microhardness was measured on each section at 500 μm and 1000 μm from the pulp-dentin interface with a Vickers diamond microhardness tester in Vickers hardness number (VHN).ResultsData obtained were analyzed using analysis of variance and the Tukey test (5%). Specimens irrigated with 2% chlorhexidine (group 2) or 1% NaOCl (group 3) presented lower values of dentin microhardness, with significant difference in relation to the control group (P < .05).ConclusionIt could be concluded that chlorhexidine and NaOCl solutions significantly reduced the microhardness of root canal dentin at 500 μm and 1000 μm from the pulp-dentin interface.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology - Volume 104, Issue 4, October 2007, Pages e125–e128
نویسندگان
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