کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3148408 1197400 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The Effect of Canal Preparation on Fill Length in Straight Root Canals Obturated with GuttaCore
کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
پیش نمایش صفحه اول مقاله
The Effect of Canal Preparation on Fill Length in Straight Root Canals Obturated with GuttaCore
چکیده انگلیسی

IntroductionA common critique of using thermoplasticized carrier-based obturators is the incidence of overextension. It would be of benefit to clinicians to have a technique for canal preparation that would allow for predictable length control. This study compared straight canals instrumented to a size 40 file using a 0.04 standardized taper preparation (STP) and a varied taper preparation (VTP) by evaluating the extension of GuttaCore (GC) obturators (Dentsply Tulsa Dental, Tulsa, OK).MethodsEighty extracted mature human premolars with single straight canals were randomly divided into 2 experimental groups (n = 40). The STP group was instrumented to size 40/.04 at the working length (WL). The VTP group was instrumented to size 40/.02 at the WL. Both groups were obturated with a size 40 GC obturator. Extension of the material, in relation to the WL, was evaluated and assessed ordinally. Statistically significant differences were determined by a 2-group chi-square test with a 2-sided P value set at P = .05 and a Fisher exact test of equal proportions.ResultsSignificant differences in extrusion existed between the STP and VTP groups when controlling for the type of apical preparation (P = .0005). The STP group resulted in a 47.2% incidence of overextension, whereas the VTP group resulted in 10.5% overextension of obturating material.ConclusionsThe results indicate that when filling straight canals with GC obturators the canal can be instrumented using a varied tapered canal preparation with a low likelihood of overextension.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Endodontics - Volume 41, Issue 2, February 2015, Pages 155–158
نویسندگان
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