Objective: The goal was to perform a ten-year retrospective study on the correlation between sleep disordered breathing (SDB) and upper airway dimensions, as well as the relation between SDB status and TMJ position. The study also examined links between airway dimensions and TMJ position. Methods: Patients were categorised into Control (n=28) or SDB (n=45). Conebeam (CBCT) data was analysed using InVivo5™. Results: Although there were distinctive features within the SDB group, these did not show a correlation of significance with airway dimensions. SDB patients were more likely to have their condyles posteriorly seated. Other factors such as presence of TMD, limited mouth opening, and pain upon palpation of masticatory muscles also affected significantly the TMJ position. Volumetric airway analysis showed links TMJ position. Conclusion: SDB patients have a smaller airway volume and have a significant relationship between airway volume and TMJ position, with their condyles seated more posteriorly.

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