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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
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Temporomandibular joint dysfunction and orthognathic surgery: a retrospective study.

Jean-Pascal Dujoncquoy1, Joël Ferri, Gwénael Raoul

  • 1Department of Oral and Maxillo-Facial Surgery at Lille 2 University, France.

Head & Face Medicine
|November 19, 2010
PubMed
Summary

Orthognathic surgery significantly reduces temporomandibular joint (TMJ) disorders in patients with pre-existing symptoms. While new TMJ symptoms can emerge post-surgery, the risk is low for asymptomatic individuals.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Orthodontics
  • Temporomandibular Joint Disorders

Background:

  • Maxillo-mandibular deformities are frequently associated with temporomandibular joint (TMJ) disorders.
  • Existing literature presents varied opinions on TMJ dysfunction following orthognathic surgery.

Purpose of the Study:

  • To evaluate changes in TMJ disorders before and after orthognathic surgery.
  • To assess the risk of developing new TMJ symptoms in patients who were initially asymptomatic.

Main Methods:

  • A questionnaire was administered to 176 patients who underwent orthognathic surgery.
  • 57 patients completed the questionnaire, detailing TMJ symptoms such as pain, clicking, and limited mouth opening.
  • Data was analyzed to compare pre-operative and post-operative TMJ disorder prevalence and outcomes.

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Main Results:

  • TMJ symptoms significantly improved in patients with pre-operative conditions, with 80% reporting improvement.
  • 80% of patients were satisfied with the surgical outcomes.
  • New onset TMJ symptoms occurred in a percentage of patients, but the overall risk was low.

Conclusions:

  • Dysgnathic patients exhibit a high prevalence of TMJ disorders.
  • Orthognathic treatment can effectively improve TMJ dysfunction and reduce pain in symptomatic patients.
  • The risk of developing new TMJ disorders after orthognathic surgery is low, even for initially asymptomatic patients.