Journal of AdvancedMedical and Dental Sciences Research

Background: Conventionally, hand files are used for cleaning and shaping and are time-consuming. The length of the appointment is strongly associated with the child's behavior. Removal of organic debris is the primary goal of canal preparation in primary teeth. Use of rotary instrumentation for pulpectomy is an emerging practice in pediatric dentistry. The goal for cleaning and shaping of the root canal system is to obtain a continuously tapering funnel from the coronal access to the apex that flows with the shape of the original canal.Aim of the study: To compare the efficacy of root canal preparation with hand K-files and NiTi rotary files. Materials and methods: The present study was conducted in a private dental clinic. For the study, we selected 50 maxillary central incisors. The teeth were stored in 0.5% sodium hypochlorite solution for one week prior to starting the study. . After coronal access was made, canals were irrigated with normal saline and #8 and # 10 K-file was inserted in the canal to determine the working length. The working length was standardized at 15 mm for all the teeth and coronal part was modified accordingly. The teeth were randomly grouped into two groups, Group A and Group B, with 25 teeth in each group. Root canals in group A were prepared with K-files and root canals in group B were prepared with NiTi rotary files. Results: We selected 50 maxillary central incisors for the study and were randomly grouped into Group A and B, with 25 teeth in each group. We observed that mean instrumentation time in Group A as 22.32 minutes and in group B was 15.78 minutes. The mean score of india ink removal in coronal third was significantly significant with respect to coronal third. Middle third and apical third were non-significant. Conclusion:  From the results of this study, this can be concluded that K-files and NiTi rotary files, both are efficient in biomechanical preparation of the root canals, however, roatary files help in reducing the preparation time of the canals.
Keywords: Root canal treatment, biomechanical preparation, hand files, rotary files.

Received: 15 December  2018                                  Revised: 27 December 2018                          Accepted: 28 December 2018
Corresponding author: Dr. Navjot Singh, B.D.S., Private Practitioner, India

This article may be cited as: Singh N. Comparison of hand K-files and NiTi rotary files in Biomechanical Preparation Of Root Canals. J Adv Med Dent Scie Res 2019;7(1):142-145.