Sleep and Breathing

, Volume 12, Issue 3, pp 275–280 | Cite as

Occlusal splint for sleep bruxism: an electromyographic associated to Helkimo Index evaluation

  • Leonardo Lopes do Nascimento
  • César Ferreira Amorim
  • Lilian Chrystiane Giannasi
  • Claudia Santos Oliveira
  • Sérgio Roberto Nacif
  • Alecsandro de Moura Silva
  • Daniela Fernandes Figueira Nascimento
  • Leonardo Marchini
  • Luis Vicente Franco de Oliveira
Original Article


This study aims to evaluate long-term effects of using an occlusal splint in patients with sleep bruxism (SB), using surface electromyography (EMG) of masseter and temporalis muscles, as well as the Helkimo Index. The subjects were 15 individuals aged from 19 to 29 years, bearers of SB, with presence of signs and symptoms of temporomandibular disorders (TMD), which never have used occlusal splints. The subjects answered the Helkimo’s Index and underwent EMG before and after 60 days of occlusal splints use. There was no indication of a significant decrease in mean EMG levels over the therapy in the muscles. A significant decrease in TMD signs and symptoms were observed in SB patients after 60 days of occlusal splints therapy.


Sleep bruxism Electromyography Occlusal splints Masseter Temporalis 



We thank the State of Sao Paulo Research Support Foundation (local acronym FAPESP) for the support for this research.


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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Leonardo Lopes do Nascimento
    • 1
  • César Ferreira Amorim
    • 2
  • Lilian Chrystiane Giannasi
    • 3
  • Claudia Santos Oliveira
    • 4
  • Sérgio Roberto Nacif
    • 5
  • Alecsandro de Moura Silva
    • 6
  • Daniela Fernandes Figueira Nascimento
    • 7
  • Leonardo Marchini
    • 8
  • Luis Vicente Franco de Oliveira
    • 4
  1. 1.Catholic University of Goiânia—UCGGoiâniaBrazil
  2. 2.University of Vale do Paraíba—UNIVAPSão José dos CamposBrazil
  3. 3.Biomedical Engineer Postgraduate Program, Sleep Disturbes Laboratory, Institute of Research and DevelopmentIP and D University of Vale do Paraíba—UNIVAPSão José dos CamposBrazil
  4. 4.Science of Rehabilitation Pós-Graduate ProgramUniversity Center Nove de Julho—UNINOVEÁgua BrancaBrazil
  5. 5.Hospital do ServidorSão PauloBrazil
  6. 6.Post-graduate course on Implant DentistryUniversity of Vale do ParaíbaSão José dos CamposBrazil
  7. 7.Prosthetic Dentistry, ODONTOSALESSão José dos CamposBrazil
  8. 8.Prosthetic DentistryUniversity of Vale do Paraíba and University of TaubatéSão José dos CamposBrazil

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