The prevalence of posterior crossbite, deep bite, and sleep or awake bruxism in temporomandibular disorder (TMD) patients compared to a non-TMD population: A retrospective study

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Abstract

Objective: To assess the prevalence of posterior crossbite and/or deep bite among patients diagnosed with temporomandibular disorders (TMD) compared to a non-TMD population. Methods: Four hundred ninety-four patients were enrolled: 345 with TMD according to the diagnostic criteria for TMD and 149 without TMD (control group). The chi-square test was used for statistical analysis. Results: A statistically significant association was found between sleep and awake bruxism and painful TMDs (p <.001 for both), but not with disc displacement. There was no association between posterior crossbite and/or deep bite with either painful TMD or disc displacement. Conclusion: Within the study limitations, sleep bruxism and awake bruxism may be related to pain in the TMD, and the severity of a deep overbite and presence of a unilateral or bilateral posterior crossbite should not be considered risk factors or as having any effect on the pain associated with TMD and/or disc displacement.

Original languageEnglish
Pages (from-to)398-404
Number of pages7
JournalCranio - Journal of Craniomandibular Practice
Volume39
Issue number5
DOIs
StatePublished - 2021

Keywords

  • Posterior crossbite
  • awake bruxism
  • deep bite
  • sleep bruxism
  • temporomandibular disorders

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