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World Journal of Pharmaceutical Research (WJPR) will give best paper award in every issue in the form of money along with certificate to promote research activity of scholar.
            Best Paper Award :
Dr. Muhammad Baqir MR Fakhrildin
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Abstract

COMPARATIVE EVALUATION OF HAND & ROTARY FILES IN RETREATMENT WITH OR WITHOUT USE OF SOLVENTS: MICROSCOPIC VERSUS RADIOGRAPHIC EVALUATION – AN IN VITRO STUDY

*Dr. Anubhuti, Dr. Priyanka Kumari and Dr. Yogita Deshpande

ABSTRACT

Introduction: The success of endodontic retreatment is related to the complete removal of the obturation material from the root canal system. The main goals of orthograde retreatment are regaining access to the apical foramen by complete removal of the root canal filling material thus facilitating sufficient cleaning and shaping of the complete root canal system and final obturation. Aim: To compare the efficacy of hand and rotary retreatment system. This study also investigated the effect of solvent on retreatment. Materials and Methodology: Sixty maxillary anterior single-rooted teeth were selected. The coronal third of each root canal was prepared with peeso reamer whilst the apical two thirds were prepared with manual files. Obturation was performed using lateral condensation method: The teeth divided into four groups. The root filling material were removed with H file and Mtwo retreatment files with and without chloroform. The presence of remaining filling material was evaluated radiographically and then by the microscopic evaluation of split roots. Result and conclusion: From present study we conclude that, 6-11– % of the canal wall remained covered with filling material. The use of solvent did not speed up the mechanized procedures. Radiographic evaluation failed to adequately and reliably detect the extent of filling material remaining on the canal walls, which was later observed by microscopic evaluation. Retreatment using Mtwo retreatment files presented with better results. Conclusion: All methods left root canal filling material on the canal walls. Radiographic evaluation failed to detect the extent of remaining root filling material, which could only be detected using microscopy.

Keywords: Chloroform, Microscopy, Radiography, Mtwo, Retreatment.


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