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Τετάρτη 26 Ιουλίου 2017

“Analysis of the correlation between dental arch and articular eminence morphology: a cone beam CT study”

Publication date: Available online 26 July 2017
Source:Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Author(s): Francielle Silvestre Verner, Gina Delia Roque-Torres, Laura Ricardina Ramírez-Sotello, Karina Lopes Devito, Solange Maria Almeida
Objective.To assess the correlation between the morphology of the dental arches (DA) of patients with normal occlusion and the articular eminence (AE) through cone beam computed tomography (CBCT).Study Design.CBCT scans of 60 patients were evaluated in terms of height (AEh) and inclinations (angles α, β and δ) of the AE. DA were classified regarding shape (tapered, square, ovoid), and perimeters, widths, and depths were measured. One-way ANOVA, Pearson's correlation coefficients, simple and multivariate linear regression models were calculated.Results.Ovoid arch was the most predominant shape (n = 66/120). Inclination of the AE (angle β) had the greatest difference between DA shapes, with this angle usually being greater in the ovoid and smaller in the square arches (p<0.05). The AEh presented greater correlation with DA measurements, with tapered arches having the most significant correlations (p<0.05). DA depth had no influence on AE measurements (p>0.05). Perimeter and width of the DA had some influence (p<0.05).Conclusions.Correlations between DA and AE morphologies of were found. Although the results do not prove absolute association between the variables, the correlations should be taken into consideration. Whenever possible, morphological features of DA should be preserved to avoid possible changes in AE.



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