Efficacy of Pro-taper Universal Rotary Re-treatment System, H-file and K-flex File in Gutta.Percha Removal from Root Canal: A Comparative In-Vitro Study

• Published in: Journal of international oral health Vol. 8; no. 1; p. 123
• Main Authors: Patil, Shavina S, Kidiyoor, K H, Naik, Balaram D, Sawagave, Snehal, Shivanand, Sunita, Jituri, Sandeep R, Shetty, Divya
• Format: Journal Article
• Language: English
• Published: Mumbai Medknow Publications & Media Pvt. Ltd 01.01.2016
• Subjects: Alcohol; Sealing compounds; Teeth
• ISSN: 0976-7428; 0976-1799

The purpose of this study was to evaluate and compare the efficacy of Pro-taper Universal Rotary re-treatment system; H-file and K-flex file in removing gutta-percha (GP) from root canal during re-treatment. A total of 54 permanent single-rooted maxillary and mandibular premolars enlarged up to master apical file size 30 and obturated with GP and AH-Plus sealer. Teeth were randomly divided into three groups (n = 18). Re-treatment was carried out using three techniques. Group A: Pro-taper Universal Rotary re-treatment system followed by Pro-taper finishing files, Group B: H-files followed by Pro-taper finishing files, and Group C: H-files followed by K-flex files. Stereomicroscopic images of the area of root canal filling were assessed and evaluated in mm^sup 2^ using an image analyzer software. Data were analyzed statistically using one-way analysis of variance and Newman-Keuls multiple post-hoc procedure. Remaining filling material was observed in all specimens. However, Pro-taper was significantly more effective than H-files and K-flex files. All techniques leftGP/sealer remnants within the root canal. Pro-taper Universal Rotary re-treatment system proved to be an efficient method of removing GP/sealer from the root canal and resulted in a smaller percentage of canal area covered with GP/sealer when compared with H-files and K-flex files.