Edentulous Dyskinesia

  • Roongroj Bhidayasiri
  • Daniel Tarsy
Part of the Current Clinical Neurology book series (CCNEU)


Edentulous dyskinesia (ED) is characterized by excessive, aimless, stereotyped movements of the jaw, mouth, and tongue which occur in elderly edentulous individuals. It occurs in 7–13% of edentulous subjects either with or without dental prostheses. Some individuals are referred to as having “spontaneous orofacial dyskinesia of the elderly.” The mechanism responsible for ED is poorly understood, but it has been suggested that malocclusion and reduced sensory feedback from oral structures may play a role since the loss of sensory nerve endings in periodontal ligaments following multiple tooth extractions may cause proprioceptive defects.


Dental Caries Tardive Dyskinesia Periodontal Ligament Sensory Feedback Dental Pain 
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Supplementary material

The patient exhibits intermittent lateral movements of the jaw associated with malocclusion. The patient is unaware of the abnormal movements.

Edentulous dyskinesia.mp4 (MP4 6,781KB)


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    Blanchet PJ, Popovici R, Guitard F, et al. Pain and denture condition in edentulous orodyskinesia: Comparisons with tardive dyskinesia and control subjects. Mov Disord. 2008;23:1837–42.PubMedCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • Roongroj Bhidayasiri
    • 1
    • 2
  • Daniel Tarsy
    • 3
  1. 1.Chulalongkorn Center of Excellence on Parkinson’s Disease and Related DisordersChulalongkorn University HospitalBangkokThailand
  2. 2.Department of NeurologyDavid Geffen School of Medicine at UCLALos AngelesUSA
  3. 3.Department of NeurologyHarvard Medical School Beth Israel Deaconess Medical CenterBostonUSA

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