Nabeel Ahmed, Rizwan Jouhar, Ismail Sheikh, Narendar Dawani.
Comparison of Endodontic Treatment Outcome with Protaper and K3 Rotary Systems.
J Pak Dent Assoc Jan ;22(3):206-11.

OBJECTIVE: Instrumentation is a key part of root canal therapy which allows disinfection, placement of medication and filling of the root canal system. Over the years several instruments have been developed for root canal. The aim of this study was to compare the outcome of endodontic treatment performed with Protaper and K3 rotary systems. METHODOLOGY: A Randomized control trial was performed at the Operative dentistry department of Altamash Institute of Dental Medicine, Karachi. A total of 249 patients were selected from the outpatient department and were randomly allocated to two treatment groups using random allocation table. After obtaining written consent, root canal treatment in group 1 was performed with Protaper rotary instruments; whereas, in group 2, treatment was performed with K3 rotary instruments. Outcome of the treatment (success or failure) was evaluated after 6-months by using Periapical Index (PAI). RESULT: Fourteen out of 249 patients did not attend the follow up so they were excluded from the final analysis. Out of 235 patients, treatment outcome of 198 (84.3%) patients was successful. In Protaper rotary group, 97 (82.2%) patients had successful treatment outcome while in K3 group, 101 (86.3%) patients showed successful outcome. On the basis of PAI score, no statistically significant difference in the treatment outcome was observed between the two rotary groups. CONCLUSION: No significant difference in the outcome of endodontic treatment performed with either Protaper or K3 rotary systems was noticed.

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