Root Canal Shaping by Single-File Systems and Rotary Instruments: a Laboratory Study

نویسندگان

  • Khaly Bane
  • Babacar Faye
  • Mouhamed Sarr
  • Seydina O Niang
  • Diouma Ndiaye
  • Pierre Machtou
چکیده

INTRODUCTION The aim of this study was to compare the shaping ability of two single-file systems and conventional rotary instruments in severely curved root canals of extracted human molars. METHODS AND MATERIALS Mesiobuccal canals of 120 mandibular molars with angles of curvature ranging between 25(°) and 35(°) and radii of curvature from 5 to 9 mm, were divided into three groups (n=40). In each group the canals were instrumented with either WaveOne (W), Reciproc (R) or ProTaper (P). The time required for canal shaping and the frequency of broken instruments were recorded. The standardized pre and post-instrumentation radiographs were taken to determine changes in working length (WL) and straightening of canal curvature. The presence of blockage or perforation was also evaluated. Data were analyzed using the one-way analysis of variance (ANOVA) and post-hoc Tukey's test. The level of significance was set at 0.05. RESULTS Both single-instrument systems reduced the canal preparation time by approximately 50% (P<0.05). No incidence of broken instruments from single-file systems was reported; however, two F2 instruments in the P group were broken (P<0.05). Reduction in WL and straightening of canal curvature was observed in all three systems with the highest scores belonging to P system (P<0.05). No case of blockage or perforation was found during shaping in any group. CONCLUSION Single-file systems shaped curved canals with substantial saving in time and a significant decrease in incidence of instrument separation, change in WL, and straightening of canal curvature.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evaluation of Root Canal Transportation using Bio Race and K -Flexo file instruments: using cone-Bean Computed

Background & Aim: Deviation from the original shape of the canal leads to poor filling and lack of proper canal seal and consequently to the failure of root treatment The aim of this experimental study was to determine the extent of apical transportation after instrumentation with hand K-Flexofile and BioRace rotary instruments by cone-beam computed tomography (CBCT). Material and Methods: In t...

متن کامل

Research Paper: Comparison efficacy of calcium hydroxide removal by Revo-s, Protaper Rotary file from root canal

Abstract Introduction: The aim of this study was to evaluate the efficacy of two rotary instrument systems (ProTaper and Revo-s File) in removing calcium hydroxide residues from root canal walls Materials and Methods:Thirty human  maxillary incisors were instrumented with the ProTaper System up to the F2 instrument, irrigated with 2.5% NaOCl,and filled with a calcium hydroxide intracanal dr...

متن کامل

Comparative study on canal preparation by three rotary sys-tems using CT scan (An in vitro study)

Comparative study on canal preparation by three rotary sys-tems using CT scan (An in vitro study) Dr. M.H. Zarrabi* - Dr. A. Talati** - Dr. S. Moradi** - Dr. L. Shakeri*** * - Associate Professor and Chief of Endodontics Dept. - Faculty of Dentistry – Mashhad University of Medical Sciences. **- Assistant Professor of Endodontics Dept. - Faculty of Dentistry – Mashhad University of Medical Scien...

متن کامل

مقایسه آزمایشگاهی دو روش دستی و چرخشی در آماده سازی کانال دندان‌هایمولر شیری

Background and Aim: The role of applying rotary instruments in reducing preparation time and proper root canal preparation have been approved in permanent teeth. The aim of this study was to compare the rotary instruments (Hero642) and K-files in root canal preparation of primary molars. Time and canal transportation were compared. Materials and Methods: In this experimental, invitro study, 30...

متن کامل

Single file niti - rotary systems

IJMDS ● www.ijmds.org ● January 2015; 4(1) 701 Review Article Single file niti-rotary systems Kumar SR, Gade V ABSTRACT The cleaning and shaping of root canals is a major step in root canal treatment procedure, which aims at removal of all the tissue debris from the root canal space while removing the inner layers of root canal dentin. With Nickel titanium (NiTi) rotary instruments this goal is...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره 10  شماره 

صفحات  -

تاریخ انتشار 2015