کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3145700 1197097 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparative study of apically extruded debris using one manual and two rotary instrumentation techniques for endodontic retreatment
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
پیش نمایش صفحه اول مقاله
Comparative study of apically extruded debris using one manual and two rotary instrumentation techniques for endodontic retreatment
چکیده انگلیسی

Background/purposeThe aim of the this study was to compare the amount of debris apically extruded during endodontic retreatment using two rotary nickel–titanium (NiTi) instruments (K3 and R-Endo) and Hedström files.Materials and methodsForty-five extracted human mandibular premolar teeth were used in this study. Root canals of the teeth were filled before being randomly assigned to three groups. In group 1, gutta-percha was removed with K3 (SybronEndo, West Collins, CA, USA) rotary NiTi instruments. In group 2, gutta-percha was removed with R-Endo (Micro-Mega, Besançon, France) rotary NiTi instruments. In group 3, gutta-percha was removed using Hedström files (Dentsply Maillefer, Ballaigues, Switzerland). Debris extruded from the apical foramen was collected into Eppendorf tubes. The liquid inside the tubes was dried, and the debris in each group was weighed and compared. Data were statistically analyzed using one-way analysis of variance, and Kruskal–Wallis test and Mann–Whitney U test.ResultsAlthough all retreatment techniques resulted in apical extrusion, groups 1 and 2 produced significantly less apical extrusion than group 3 (P < 0.05). No statistically significant difference was found between groups 1 and 2 (P > 0.05).ConclusionAll retreatment techniques produced extruded debris during endodontic retreatment; however, both rotary NiTi systems were associated with less apical extrusion than manual instrumentation with Hedström files.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Dental Sciences - Volume 7, Issue 1, March 2012, Pages 1–6
نویسندگان
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