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Effects on jaw function shortly after whiplash trauma.

E Lampa1, A Wänman1, E Nordh2

  • 1Department of Odontology/Clinical Oral Physiology, Umeå University, Umeå, Sweden.

Journal of Oral Rehabilitation
|September 12, 2017
PubMed
Summary

Whiplash trauma impairs jaw function, causing pain and fatigue during chewing within one month. This highlights the critical link between neck and jaw sensory-motor systems, necessitating integrated care.

Keywords:
accidentsfacial painmasticationneck paintemporomandibular joint dysfunction syndrometrafficwhiplash injuries

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Area of Science:

  • Neuroscience
  • Biomechanics
  • Clinical Traumatology

Background:

  • Normal jaw function relies on integrated jaw and neck sensory-motor control.
  • Whiplash trauma can disrupt this integration, potentially impairing chewing ability.
  • The timing of this impairment post-trauma remains unclear.

Purpose of the Study:

  • To investigate jaw function impairment shortly after whiplash trauma.
  • To assess the relationship between neck disability and jaw function following trauma.

Main Methods:

  • Eighty recent whiplash trauma cases and 80 controls underwent evaluation within one month.
  • Participants completed the Jaw Disability Checklist (JDC) and Neck Disability Index (NDI).
  • A 5-minute chewing test assessed pain and fatigue onset and occurrence.

Main Results:

  • Whiplash cases reported significantly higher JDC and NDI scores compared to controls.
  • Cases experienced more frequent and earlier onset of fatigue and pain during chewing.
  • Symptoms were reported in trigeminal and spinal areas, with spinal symptoms more common in cases.

Conclusions:

  • Jaw-neck sensory-motor function is impaired within one month of whiplash trauma.
  • The strong association between neck disability and jaw impairment underscores their functional connection.
  • Multidisciplinary assessment is crucial for managing post-whiplash jaw dysfunction.