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Volume 5 Issue 8 (August, 2017)

Original Articles

A Study of Efficacy of Biomechanical Preparation of Root Canals between hand K-files and Rotary Protaper Files
Varun Rajkumar, Shruti Sharma, Ankit Sharma

Background: An ideal prepared root canal should have a progressively tapering conical shape which preserves the apical foramen and the original canal curvature without transportation. Several studies have concluded that none of the instrumentation techniques or devices currently used can completely clean root canals, especially curved roots. Arguably the cleaning ability of manual root canal instrumentation has been shown to be superior to that of automated device. Aim of the study: To study efficacy of biomechanical preparation of root canals between hand K-files and rotary Protaper files. Materials and methods: The present study was conducted in the Department of Conservative Dentistry and Endodontics of the Dental institution. For the study, 26 extracted teeth were selected. The inclusion criteria for selection of extracted teeth are that only maxillary central incisors with single root canal, non-carious teeth, completely formed apex and absence of structural and morphological defects. The total teeth were randomly grouped into two groups, Group1 and Group 2. Root canals of teeth in Group 1 were prepared using conventional method (stainless steel hand K-files) whereas in Group 2 were prepared using rotary method (NiTi Profile 0.04 taper). Results: In the present study, 26 extracted teeth were selected and were randomly grouped into two groups Group 1 (canals prepared with K-files) and Group 2 (canals prepared with rotary Protaper files). The mean preparation time for K-files was 10.02 minutes and for Protaper files was 7.98 minutes. In case of K-files we observed 3 teeth with blocked canals and 10 teeth with patent canals. In comparison to this, Protaper files showed 1 tooth with blocked canal and 12 teeth with patent canals. Conclusion: The mean biomechanical preparation time for root canals was more with K-files as compared to Protaper rotary files; however, the incidence of canal blockage was more in case of K-files as compared to Protaper rotary files.
Key words: Protaper files, NiTi files, K-files, root canals.

Corresponding author: Dr. Varun Rajkumar, MDS, Private practitioner, Delhi, India 

This article may be cited as: Rajkumar V, Sharma S, Sharma A. A Study of Efficacy of Biomechanical Preparation of Root Canals between hand K-files and Rotary Protaper Files. J Adv Med Dent Scie Res 2017;5(8):97-100.

 
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