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Efficacy of low level laser therapy in reducing postoperative pain after endodontic surgery—A randomized double blind clinical study

2003; Elsevier BV; Volume: 33; Issue: 1 Linguagem: Inglês

10.1054/ijom.2002.0449

1399-0020

Matthias Kreisler, Haitham Al Haj, Nafise Noroozi, B Willershausen, B dʼHoedt,

Endodontics and Root Canal Treatments

Abstract The aim of the study was to evaluate the effect of low level laser application on postoperative pain after endodontic surgery in a double blind, randomized clinical study. Fifty-two healthy adults undergoing endodontic surgery were included into the study. Subsequently to suturing, 26 patients had the operation site treated with an 809nm-GaAlAs-laser (oralaser voxx, Oralia GmbH, Konstanz, Germany) at a power output of 50mW and an irradiation time of 150s. Laser treatment was simulated in further 26 patients. Patients were instructed to evaluate their postoperative pain on 7 days after surgery by means of a visual analogue scale (VAS). The results revealed that the pain level in the laser group was lower than in the placebo group throughout the 7 day follow-up period. The differences, however, were significant only on the first postoperative day (Mann–Whitney U-test, P 0.05). Low level laser therapy can be beneficial for the reduction of postoperative pain. Its clinical efficiency and applicability with regard to endodontic surgery, however, require further investigation. This is in particular true for the optimal energy dosage and the number of laser treatments needed after surgery.