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Lasers Med Sci. 2017 Aug;32(6):1279-1288. doi: 10.1007/s10103-017-2236-4. Epub 2017 May 23.

Efficacy of photobiomodulation therapy on masseter thickness and oral health-related quality of life in children with spastic cerebral palsy.

Author information

1
Graduate Program in Dentistry, Cruzeiro do Sul University , Rua Galvão Bueno 868, Liberdade, São Paulo, SP CEP 01506-000, Brazil. drsantosmt@yahoo.com.br.
2
Patients with Special Needs, Cruzeiro do Sul University, Rua Galvão Bueno 868, Liberdade, São Paulo-SP, 01506-000, Brazil. drsantosmt@yahoo.com.br.
3
Associação de Assistência à Criança Deficiente (AACD), Av. Professor Ascendino Reis, 724 - Ibirapuera, São Paulo-SP, P 04027-000, Brazil. drsantosmt@yahoo.com.br.
4
Associação de Assistência à Criança Deficiente (AACD), Av. Professor Ascendino Reis, 724 - Ibirapuera, São Paulo-SP, P 04027-000, Brazil.
5
Graduate Program in Dentistry, Cruzeiro do Sul University , Rua Galvão Bueno 868, Liberdade, São Paulo, SP CEP 01506-000, Brazil.
6
Sergipe Federal University, Hospital Universitario (HU), Campus Prof. João Cardoso Nascimento Rua Cláudio Batista, s/n, Cidade Nova, Aracaju, SE CEP 49060-108, Brazil.
7
School of Dentistry, São Paulo University (USP), Av. Prof. Lineu Prestes 2227 Cidade Universitária, São Paulo, SP CEP 05508-900, Brazil.

Abstract

The study aimed to evaluate the efficacy of photobiomodulation therapy (PBMT) on bilateral masseter muscle thickness and amplitude of mouth opening in children with spastic cerebral palsy (CP), and the impact on their oral health-related quality of life (OHRQOL). Three groups were included: experimental CP group (EG: n = 26 with oral complaints), positive control CP group (PCG: n = 26 without complaints), and negative control group (NCG: n = 26 without CP). In the EG, the masseter muscles on both sides were irradiated with an infrared low-level Ga-Al-As laser (λ = 808 ± 3 nm, 120 mW) using a 3 J/cm2 energy dose per site, with a 20 s exposure time per site (spot area: 4 mm2; irradiance: 3 W/cm2; energy delivery per point: 2.4 J) six times over six consecutive weeks. Masseter thickness, assessed through ultrasonography, and the amplitude of mouth opening were measured in the EG before and after six applications of PBMT and once in the PCG and NCG. The Parental-Caregiver Perception Questionnaire (P-CPQ) was used to evaluate OHRQOL. ANOVA, chi-square, t tests, and multilevel linear regression were used for statistical analysis. In the EG, the study results revealed average increments of 0.77 (0.08) millimeter in masseter thickness (P < 0.05) and 7.39 (0.58) millimeter for mouth opening (P < 0.05) and reduction in all P-CPQ domains (P < 0.001), except for social well-being. The six applications of PBMT increased masseter thickness and mouth opening amplitude and reduced the impact of spastic CP on OHRQOL.

KEYWORDS:

Cerebral palsy; Low-level laser therapy; Masseter muscle; Photobiomodulation therapy

PMID:
28536904
DOI:
10.1007/s10103-017-2236-4
[Indexed for MEDLINE]

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