Silent period-dentate, edentulous, and patients with craniomandibular dysfunction.
BACKGROUND
The record of electrical activity of elevator muscles in mandible is important for the evaluation of muscular potency and diagnosis of neuromuscular pathologies, which allows prevention and treatment. The aim of this study was to define silent periods (SPs) and the importance in dentistry and compare the SPs in masticatory muscles of dentate and edentulous patients wearing prosthesis considering the presence or absence of craniomandibular dysfunction (CMD).


METHODS
Literature review in PubMed database.


CONCLUSIONS
Silent periods are isolated pulses of transcranial magnetic stimulation in the primary motor cortex during voluntary muscular activity that generates an interruption of muscular activity for hundredths of milliseconds. The SP duration depends on the patient (dentate or edentulous), type of stimulus, and presence of CMD.


CONCLUSIONS
The SP is higher in complete edentulous patients and in individuals with occlusal disharmonies than in dentate patients without CMDs. The treatment of CMDs through occlusal therapy decreases SP duration.
Goiato
Marcelo Coelho
MC
Department of Dental Materials and Prosthodontics, São Paulo State University, Araçatuba Dental School, Araçatuba, São Paulo, Brazil. goiato@foa.unesp.br
Haddad
Marcela Filiè
MF
dos Santos
Daniela Micheline
DM
Garcia
Alício Rosalino
AR
Zuim
Paulo Renato Junqueira
PR
Zavanelli
Adriana Cristina
AC
D004576:Electromyography; D006801:Humans; D008410:Masticatory Muscles / Q000502:physiology* / Q000503:physiopathology; D009044:Motor Cortex / Q000502:physiology* / Q000503:physiopathology; D009046:Motor Neurons / Q000502:physiology; D009066:Mouth, Edentulous / Q000503:physiopathology*; D009119:Muscle Contraction / Q000502:physiology; D009433:Neural Inhibition / Q000502:physiology; D012018:Reflex / Q000502:physiology; D013705:Temporomandibular Joint Disorders / Q000503:physiopathology*; D050781:Transcranial Magnetic Stimulation