In patients with irreversible pulpitis, the protaper next file system is more beneficial than the protaper universal file system for alleviating postsurgical pain after single visit endodontic therapy.

A randomized clinical trial was conducted to assess the occurrence of postsurgical pain in people with pulpitis following root canal treatment. The study investigated the use of two distinct rotary file systems as instruments during the procedure.

Overall, 40 teeth affected with symptomatic irreversible pulpitis and requiring root canal therapy were randomized to 2 groups based on the instrument system utilized: Protaper next and protaper universal. The root canal treatments were conducted in a single visit.

The volunteers were requested to rate their level of pain on a visual analogue scale (VAS) at 12 hours, 24 hours, and 72 hours after the procedure, using categories ranging from "no pain" to "mild discomfort," "moderate pain," and "severe pain". With statistical significance set at p < 0.05, the collected data was then subjected to analysis utilizing the chi-square test.

Substantial differences were noted between the two rotary file groups. Specifically, the intensity of postsurgical pain was notably higher in the protaper universal group compared to the protaper next file group (Table 1).

Following single-visit root canal treatment in patients with irreversible pulpitis, the protaper next file system was associated with reduced postsurgical pain in comparison to the protaper universal file system at 72, 24, and 12 hours.