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Wavelength effect in temporomandibular joint pain: a clinical experience

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Abstract

Temporomandibular disorders (TMDs) are common painful multifactorial conditions affecting the temporomandibular joint (TMJ) and whose treatment depends on the type and symptoms. Initially, it requires pain control, and, for this, drugs, biting plates, occlusal adjustment, physiotherapy or their association are used. Lately, laser phototherapy (LPT) has been used in the treatment of pain of several origins, including TMDs. This study reports the treatment of a selected group of 74 patients treated at the Laser Center of the Federal University of Bahia between 2003 and 2008. Following standard anamneses, clinical and imaging examination and with the diagnosis of any type of TMD, the patients were prepared for LPT. No other intervention was carried out during the treatment. Treatment consisted of three sessions a week for 6 weeks. Prior to irradiation, the patients were asked to score their pain using a visual analog scale (VAS). Lasers of wavelength (λ)780 nm, λ790 nm or λ830 nm and/or λ660 nm were used at each session (30/40 mW; spot (ϕ) ∼3 mm; mean dose per session 14.2 ± 6.8 J/cm2; mean treatment dose of 170 ± 79.8 J/cm2). Of the patients, 80% were female (∼46 years old). At the end of the 12 sessions the patients were again examined, and they scored their pain using the VAS. The results were statistically analyzed and showed that 64% of the patients were asymptomatic or had improved after treatment and that the association of both wavelengths was statistically significant (P = 0.02) in the asymptomatic group. It was concluded that the association of red and infrared (IR) laser light was effective in pain reduction on TMJ disorders of several origins.

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Authors and Affiliations

  1. Laser Center, School of Dentistry, Federal University of Bahia (UFBA), Av. Araújo Pinho, 62, Canela, 40140-110, Salvador, BA, Brazil

    Carolina M. Carvalho, Juliana A. de Lacerda, Fernando P. dos Santos Neto, Aparecida M. C. Marques & Antônio L. B. Pinheiro

  2. Dental Public Health, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil

    Maria Cristina T. Cangussu

Authors
  1. Carolina M. Carvalho
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  2. Juliana A. de Lacerda
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  3. Fernando P. dos Santos Neto
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  4. Maria Cristina T. Cangussu
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  5. Aparecida M. C. Marques
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  6. Antônio L. B. Pinheiro
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Correspondence to Antônio L. B. Pinheiro.

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Carvalho, C.M., de Lacerda, J.A., dos Santos Neto, F.P. et al. Wavelength effect in temporomandibular joint pain: a clinical experience. Lasers Med Sci 25, 229–232 (2010). https://doi.org/10.1007/s10103-009-0695-y

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  • DOI: https://doi.org/10.1007/s10103-009-0695-y

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