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Post‐instrumentation pain after the use of either Mtwo or the SAF system: a randomized controlled clinical trial
Author(s) -
SaumyaRajesh P.,
Krithikadatta J.,
Velmurugan N.,
Sooriaprakas C.
Publication year - 2017
Publication title -
international endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.988
H-Index - 119
eISSN - 1365-2591
pISSN - 0143-2885
DOI - 10.1111/iej.12702
Subject(s) - medicine , dentistry , root canal , instrumentation (computer programming) , randomized controlled trial , postoperative pain , mann–whitney u test , pulp necrosis , significant difference , surgery , computer science , operating system
Aim This randomized controlled trial compared the incidence of post‐instrumentation pain associated with Mtwo rotary NiTi files and the self‐adjusting file system following canal shaping and cleaning. Methodology Following sample size estimation, a total of 130 patients were randomized into two groups based on selection criteria [group Mtwo and group SAF (self‐adjusting file)]. Root canal treatment was carried out in two appointments. The teeth were endodontically treated with the appropriate allotted systems following the similar clinical parameters. Patients were asked to rate the intensity of pre‐instrumentation and post‐instrumentation pain (at 2, 4, 6, 8, 24, 48 h) using the VAS score. The Kruskal–Wallis test was carried out for the overall comparisons of the two systems. The Friedman test was used to compare between time‐points with each system. Subgroup analyses for independent variables (gender, pulp status and diagnosis) used the Mann–Whitney test and Wilcoxon signed ranks test ( P < 0.05). Results No significant difference was found between the two groups with respect to post‐instrumentation pain. Teeth with pulpal necrosis had significant pain at 8 h compared with teeth with vital pulps ( P = 0.04). Teeth with vital pulps in the SAF group had significantly less post‐instrumentation pain compared with those in the Mtwo group at 6 h ( P = 0.042). Patients who had teeth with nonvital pulps in the SAF group experienced more post‐instrumentation pain at 8 h ( P = 0.017) and 24 h ( P = 0.005). Conclusion The incidence of post‐instrumentation pain at different time intervals in patients undergoing root canal treatment was similar for both the self‐adjusting file and Mtwo file systems.