Prevalence of temporomandibular joint disk displacement in infants and young children

Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1999 Jan;87(1):15-9. doi: 10.1016/s1079-2104(99)70288-x.


Objective: The purpose of this study was to determine the prevalence of temporomandibular joint disk displacement in infants and young children.

Study design: Magnetic resonance images were obtained of the temporomandibular joints in 30 infants and young children ranging in age from 2 months to 5 years (median age, 3 years; mean age, 2.5 years).

Results: All joints had normal superior disk position. The computed 95% confidence interval was 0.00-0.06, which implies a minimal probability that disk displacement would occur in this age group.

Conclusions: The result contradicts previous suggestions that temporomandibular joint disk displacement could represent a congenital normal anatomic variant.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Argentina / epidemiology
  • Child, Preschool
  • Confidence Intervals
  • Diagnosis, Differential
  • Female
  • Humans
  • Infant
  • Joint Dislocations / epidemiology*
  • Joint Dislocations / pathology
  • Magnetic Resonance Imaging
  • Male
  • Prevalence
  • Temporomandibular Joint Disc / anatomy & histology
  • Temporomandibular Joint Disc / pathology
  • Temporomandibular Joint Disorders / epidemiology*
  • Temporomandibular Joint Disorders / pathology