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  • Title: Does laser photobiomodulation prevent hyposalivation in patients undergoing head and neck radiotherapy? A systematic review and meta-analysis of controlled trials.
    Author: Louzeiro GC, Teixeira DDS, Cherubini K, de Figueiredo MAZ, Salum FG.
    Journal: Crit Rev Oncol Hematol; 2020 Dec; 156():103115. PubMed ID: 33039721.
    Abstract:
    INTRODUCTION: Head and neck radiotherapy can cause hypofunction of the salivary glands. Many studies report that laser photobiomodulation (PBM) is able to minimize radiation-induced hyposalivation, yet there is no consensus about its effects. OBJECTIVE: To carry out a meta-analysis of controlled clinical trials that used PBM to prevent radiation-induced hyposalivation. METHODS: A systematic search was performed through Embase, Medline/PubMed, Cochrane, EBSCO, Scopus, LILACS and Web of Science databases. The strategy included comparisons of the effect of PBM with placebo/clinical follow-up on unstimulated and/or stimulated salivary flow in patients undergoing head and neck radiotherapy. RESULTS: Six clinical trials were included, five of which were used for meta-analysis. Evidence was observed between the use of PBM and increased unstimulated salivary flow (MD 0.20 mL/min, 95 % Cl 0.10-0.30, I² = 96 %, p < 0.00001) and in stimulated salivary flow (MD 0.27 mL/min, 95 % CI 0.08-0.46, I² = 95 %, p < 0.00001). CONCLUSION: PBM appears to minimize radiation-induced hyposalivation.
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