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Indexed/Abstracted in: BIOSIS Previews, EMBASE, Scopus, Emerging Sources Citation Index
Online ISSN 1827-1812
Ferraz M. J. P. C. 1, Gomes M. F. 1, De F. Batista S. R. 2, Amorim C. F. 3, Amorim J. B. 1, Matsui M. Y. 1
1 Section of Oral Biopathology, Department of Bioscience and Oral Diagnosis, UNESP ‑ Universidade Estadual Paulista, São José dos Campos Dental School, São José dos Campos, São Paulo, Brazil;
2 Section of Training Program in Dentistry for Persons with Disabilities , PFOPD ‑ School of São José dos Campos, UNESP ‑ Universidade Estadual Paulista, São Paulo, Brazil;
3 Section of Biomechanics, Masters Program of Physical Therapy, Universidade Cidade de São Paulo – UNICID, São Paulo, Brazil
Fragile X syndrome is a cytogenetic abnormality related to chromosomal X. This syndrome is frequently associated to intellectual disability, psychological problems, as well as heart, skeletal and join alterations. Intraoral anomalies include malloclusion, ogival palate, cleft palate, presence of mesiodens, dental hypomineralization and abrasion of the occlusal surfaces and incisal edges. The study of characteristics of this syndrome is important for the dentist in order to guide dental treatment and prevention. The aim of this study is to present a myofunctional therapy protocol, evaluated by surface electromyography. A case of a 21 year-old young man who attended the Training Program in Dentistry for Persons with Disabilities, School of Dentistry of São José dos Campos/UNESP is reported. He underwent myofunctional therapy before dental treatment and the masticatory muscles were evaluated by surface electromyography. The exercises of myofunctional therapy consisted of active and passive simple movements of opening and closing the mouth, tongue protrusion and retrusion, digital manipulation and also by using an electric massager on intraoral and perioral region of the masseter, buccinator and orbicularis oris. Action potentials of the masticatory muscles decreased in almost all the muscles and values for the bite force and mandibular opening capacity increased. This study showed that brief and immediate myofunctional therapy optimized clinical practice with positive repercussion on dental care.