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Photomed Laser Surg. 2010 Dec;28(6):835-9. doi: 10.1089/pho.2009.2630.

Low-level laser therapy in burning mouth syndrome patients: a pilot study.

Author information

1
Centro de Lasers e Aplicações, Instituto de Pesquisas Energéticas e Nucleares-IPEN/CNEN-SP, Cidade Universitária, São Paulo, Brazil.

Abstract

OBJECTIVE:

The aim of this study was to investigate the effect of low-level laser therapy (LLLT) on the treatment of burning mouth syndrome (BMS). In addition, the laser effect was compared on the different affected oral sites.

MATERIALS AND METHODS:

Eleven subjects with a total of 25 sites (tongue, lower lip, upper lip, and palate) affected by a burning sensation were selected. The affected areas were irradiated once a week for three consecutive weeks with an infrared laser (λ = 790 nm). The probe was kept in contact with the tissue, and the mucosal surface was scanned during the irradiation. The exposure time was calculated based on the fluence of 6 J/cm(2), the output power of 120 mW, and the area to be treated. Burning intensity was recorded through a visual analog scale before and after the treatment and at the 6-week follow-up. The percentage of the improvement in symptoms was also obtained.

RESULTS:

Burning intensity at the end of the laser therapy was statistically lower than at the beginning (p < 0.01). Patients reported an 80.4% reduction in the intensity of symptoms after laser treatment. There was no statistical difference between the end of the treatment and the 6-week follow-up, except for the tongue site.

CONCLUSION:

Under the investigated parameters, infrared LLLT proved to be a valuable alternative for BMS treatment, providing a significant and lasting reduction in symptoms.

PMID:
21142725
DOI:
10.1089/pho.2009.2630
[Indexed for MEDLINE]

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