Postendodontic treatment pain management with low-level laser therapy

Abstract

Context: Low-level laser therapy (LLLT) and antimicrobial photodynamic therapy are well established for reduction of inflammation related pain. In vitro studies have shown a biostimulatory effect of low-level lasers (LLL) on various cell types, including neural cells. Aims: The aim was to evaluate postendodontic treatment pain with and without the use of LLL. Settings and Design: Fifty patients with demand for endodontic treatment on their premolars were included in the study. Patients had no history of medical complications, or systemic diseases. All patients were randomly divided into two groups (n = 25). Subjects and Methods: Endodontic treatments were performed in a single-visit. First group was the laser group, after biomechanical preparation patients were treated with LLL, application was done through root canal and to the buccal and lingual mucosae overlying the apices of the target tooth. Exposure time was 80 s. In the second group, patients received placebo. Intensity of posttreatment pain was recorded using visual analog scale at 4, 8, 24, and 72 h. Statistical Analysis Used: Observed results were statistically analyzed using Mann-Whitney U-test. Results: There was a significant difference between both the groups in favor of LLLT group. Conclusions: LLLT has been shown to be effective, noninvasive and nonpharmacological approach for the reduction of postendodontic treatment pain, periodontal infection, periapical and wound healing.