Effects of phototherapy on muscle activity and pain in individuals with temporomandibular disorder: a study protocol for a randomized controlled trial

Autor: Ana Paula Amaral, Cid André Fidelis de Paula Gomes, Sandra Kalil Bussadori, Fabiano Politti, Tabajara de Oliveira Gonzalez, Marilia Barbosa Santos Garcia, Paulo de Tarso Camillo de Carvalho, Daniela Aparecida Biasotto-Gonzalez, Yasmin El Hage, Monique Sampaio Rodrigues, Bruno Roberto Borges Barbosa, Dowglas Fernando Magalhães de Sousa, Juliana de Paiva Tosato, Eric Edmur Camargo Arruda, Igor Phillip dos Santos Glória, Ernesto Cesar Pinto Leal-Junior, Carolina Marciela Herpich
Rok vydání: 2014
Předmět:
Adult
Pain Threshold
medicine.medical_specialty
Orofacial pain
Time Factors
Adolescent
Visual analogue scale
Medicine (miscellaneous)
Temporal Muscle
law.invention
Masseter muscle
Young Adult
Study Protocol
Physical medicine and rehabilitation
Randomized controlled trial
Clinical Protocols
Double-Blind Method
law
Facial Pain
Threshold of pain
medicine
Temporomandibular Joint Disorder
Humans
Pharmacology (medical)
Low-Level Light Therapy
Range of Motion
Articular
Pain Measurement
temporomandibular joint disorder
physical therapy modalities
Temporomandibular Joint
business.industry
Electromyography
Masseter Muscle
Temporomandibular Joint Disorders
Temporomandibular joint
Masticatory force
Biomechanical Phenomena
medicine.anatomical_structure
Treatment Outcome
Research Design
Physical therapy
Female
medicine.symptom
business
Brazil
phototherapy
Zdroj: Trials
ISSN: 1745-6215
Popis: Background According to the International Association for the Study of Pain (IASP), the term temporomandibular disorder (TMD) regards a subgroup of orofacial pain, the symptoms of which include pain or discomfort in the temporomandibular joint, ears, masticatory muscles and neck on one or both sides, as well as joint sounds, limited mandibular movements or mandibular deviation and difficulties chewing. Phototherapy, such as low-level laser therapy (LLLT) and light-emitting diode (LED) therapy, is one of the resources used to treatment muscle pain. Thus, there is a need to investigate therapeutic resources that combine different wavelengths as well as different light sources (LLLT and LED) in the same apparatus. The aim of the proposed study is to evaluate the effects of four different doses of phototherapy on pain, activity of the masticatory muscles (masseter and bilateral anterior temporal) and joint mobility in individuals with temporomandibular disorder. A further aim is to determine the cumulative effect 24 and 48 hours after a single session. Methods/Design A placebo-controlled, double-blind, randomized, clinical trial will be carried out involving 72 women between 18 and 40 years of age with a diagnosis of myogenous TMD. The participants will then be randomly allocated to four groups totaling 18 individuals per group. Three groups will be submitted to a single session of phototherapy with different light sources, and one group will receive placebo therapy: Group A (2.62 Joules); Group B (5.24 Joules); Group C (7.86 Joules); and Group D (0 Joules). The following assessment tools will be administered on four separate occasions (baseline and immediately after, 24 h after and 48 h after phototherapy). Pain intensity will be assessed using the visual analog scale for pain, while pain thresholds will be determined using algometer, and electromyographic (EMG) analysis on the masseter and anterior temporal muscles. Discussion The study will contribute to the practice of the evidence-based use of phototherapy in individuals with a myogenous TMD. Data will be published after the study is completed. Trial registration This study is registered with the Brazilian Registry of Clinical Trials, NCT02018770, date of registration: 7 December 2013.
Databáze: OpenAIRE
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