Effect of Occlusal Interference on Habitual Activity of Human Masseter

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  • A. Michelotti
    Department of Dental and Maxillo-Facial Sciences, Section of Orthodontics and Clinical Gnathology, School of Dentistry, University of Naples “Federico II”, Via Pansini, 5.I-80131, Italy; and
  • M. Farella
    Department of Dental and Maxillo-Facial Sciences, Section of Orthodontics and Clinical Gnathology, School of Dentistry, University of Naples “Federico II”, Via Pansini, 5.I-80131, Italy; and
  • L.M. Gallo
    Department of Dental and Maxillo-Facial Sciences, Section of Orthodontics and Clinical Gnathology, School of Dentistry, University of Naples “Federico II”, Via Pansini, 5.I-80131, Italy; and
  • A. Veltri
    Department of Dental and Maxillo-Facial Sciences, Section of Orthodontics and Clinical Gnathology, School of Dentistry, University of Naples “Federico II”, Via Pansini, 5.I-80131, Italy; and
  • S. Palla
    Department of Dental and Maxillo-Facial Sciences, Section of Orthodontics and Clinical Gnathology, School of Dentistry, University of Naples “Federico II”, Via Pansini, 5.I-80131, Italy; and
  • R. Martina
    Department of Dental and Maxillo-Facial Sciences, Section of Orthodontics and Clinical Gnathology, School of Dentistry, University of Naples “Federico II”, Via Pansini, 5.I-80131, Italy; and

書誌事項

公開日
2005-07
権利情報
  • https://journals.sagepub.com/page/policies/text-and-data-mining-license
DOI
  • 10.1177/154405910508400712
公開者
SAGE Publications

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説明

<jats:p>It has been suggested that occlusal interference may increase habitual activity in the jaw muscles and may lead to temporomandibular disorders (TMD). We tested these hypotheses by means of a double-blind randomized crossover experiment carried out on 11 young healthy females. Strips of gold foil were glued either on a selected occlusal contact area (active interference) or on the vestibular surface of the same tooth (dummy interference) and left for 8 days each. Electromyographic masseter activity was recorded in the natural environment by portable recorders under interference-free, dummy-interference, and active-interference conditions. The active occlusal interference caused a significant reduction in the number of activity periods per hour and in their mean amplitude. The EMG activity did not change significantly during the dummy-interference condition. None of the subjects developed signs and/or symptoms of TMD throughout the whole study, and most of them adapted fairly well to the occlusal disturbance.</jats:p>

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