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Effect of intraoral low-level laser therapy on quality of life of patients with head and neck cancer undergoing radiotherapy

Authors

  • Angélica Ferreira Oton-Leite DDS, MS,

    1. Department of Oral Medicine (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil
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  • Annelise Carrilho Corrêa de Castro DDS, MS,

    1. Department of Oral Medicine (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil
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  • Marília Oliveira Morais DDS,

    1. Department of Oral Medicine (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil
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  • Juliana Castro Dourado Pinezi MD, MS,

    1. Radiotherapy Department of the Araújo Jorge Hospital, Association of Cancer Combat of Goiás, Goiânia, Brazil
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  • Cláudio Rodrigues Leles DDS, MS, PhD,

    1. Department of Restorative Dentistry, Dental School, Federal University of Goiás, Goiânia, Brazil
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  • Elismauro Francisco Mendonça DDS, MS, PhD

    Corresponding author
    1. Department of Oral Medicine (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil
    • Department of Oral Medicine (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil
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Abstract

Background

Low-level laser therapy has been used to reduce complications of head and neck cancer treatment. The aim was to assess the impact of laser in the quality of life (QOL) of patients receiving radiotherapy.

Methods

Sixty outpatients were randomly assigned into 2 groups. The laser group received applications and the placebo group received sham laser. QOL was assessed using the University of Washington QOL questionnaire. A repeated-measures analysis of variance (ANOVA) was used for comparisons of overall QOL scores and Mann–Whitney test compared changes in domain scores.

Results

A decrease in QOL scores was observed in both groups and the reduction in the laser group was significantly lower (p < .01). Changes in QOL scores regarding pain, chewing, and saliva domains were evident in the placebo group. Both health-related QOL and overall QOL were rated higher by patients who received laser therapy.

Conclusion

Laser therapy reduces the impact of radiotherapy on the QOL of patients with head and neck cancer. © 2011 Wiley Periodicals, Inc. Head Neck, 2012

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