Is the tongue position influenced by the palatal vault dimensions?

Journal of Oral Rehabilitation
P BourdiolA Woda

Abstract

The influence of the palatal vault dimensions on tongue position is here studied through evaluation of the in-mouth air cavity (IMAC) volume when the mandible is in maximal intercuspal position. A sample of 35 women (mean age 21.2 +/- 1.0) and 15 men (mean age 22.1 +/- 0.9) was selected. The sagittal cross-section area of the IMAC, which is modulated by the tongue position, was measured on lateral cephalograms. Dental casts were used to measure the palatal vault volume, which was defined by the occlusal plane, the hard palate and the posterior face of the second molars. Palatal vault volume allowed deduction of the IMAC volume through a rule of three procedure relating volume to area ratios. No IMAC could be calculated from cephalograms of 10 subjects who had the tongue stuck to the palate. For the 40 other subjects, the IMAC volume was 8.9 +/- 4.8 mL. It was 2 mL larger in men (n = 14) than in women (n = 26) and was the largest in skeletal Class III and the smallest in skeletal Class II (P > 0.05). IMAC volume was strongly correlated with palatal vault height but neither with palatal width nor length. It was thus assumed that the height of the palatal vault could influence the most observed position of the tongue but this does...Continue Reading

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Citations

Dec 18, 2012·Clinical Oral Investigations·Pierre BourdiolAlain Woda
Apr 6, 2013·Journal of Oral Rehabilitation·P BourdiolA Woda
Jan 18, 2017·Journal of Oral Rehabilitation·L Huanca GhislanzoniS Kiliaridis
Feb 16, 2018·PloS One·Rick JanssenDan Dediu
Dec 9, 2020·The Angle Orthodontist·Balaji RajkumarDevaki Vijayalakshmi

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