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Volume 8 Issue 8 (August, 2020)

Original Articles

Evaluation of Canal Transportation and centering ability of two different single file systems in combination with and without glide path technique using Cone Beam Computer Tomography- In Vitro Study
Priti Mishra, Sneha, Yogesh Sahu, Ravi Malik, Rohit Agrawal, Praveen Kumar Mishra

Introduction – The primary goal of cleaning and shaping in root canal therapy is the removal of bacteria and dentinal debris while preserving the radicular anatomy. However, this may be difficult, especially in curved canals, because all instrument techniques tend to alter the canal curvature and pathway. The aim of ideal root canal preparation is to prevent iatrogenic aberrations such as transportation. The purpose of this study is to compare and evaluate the canal transportation and centering ability of single rotary file systems (Wave One Gold and OneShape) with or without glide path using cone beam computed tomography imaging. Methodology: Forty mesiobuccal canals of mandibular first molars with curvatures of 25°−35° were divided into 4 experimental groups (n = 10) according to the instrumentation technique as follows: group P/WOG (glide path created and canals shape with Wave One Gold system), group N/WOG (glide path perform and canals shape with Wave One Gold system only), group P/OS (glide path created and canals were shaped with OneShape system), N/OS (glide path perform and canals shape with OneShape system only). All root canals will be scanned before and after instrumentation by using CBCT scanner to evaluate root canal transportation and centering ratio at 3, 5 and 7 mm from the apex and volumetric changes. Results -The results were statistically analyzed using a one‐way ANOVA and Kruskal‐Wallis H tests. In this study , in all 3 distances (3,5,7mm), the One Shape system without glide path have the highest transportation ,whereas Wave One Gold with glidepath have lowest, but the difference in transportation amounts in the 4 groups is not statistically significant between group P/WOG and group P/OS . The difference in transportation amount in the 4 groups was not statistically significant p< 0.001), No statistically significant difference in the centering ability in 4 groups (p< 0.001). Conclusion- Creating a glide path before using a single file system in a curved canal may prevent external wall change at the apical third. Within the limitations of present study, WaveOneGold single reciprocation file combined with glide path file respected original canal anatomy better than OneShape file with glide path. Better –centered canals are prepared with WaveOneGold combined with a glide path at all 3 levels. Keywords- Canal Transportation, Centering Ability, Single File Systems, Glide Path Technique, CBCT.

 
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