Παρασκευή 29 Δεκεμβρίου 2017

Radiological correlation between the thickness of the roof of the glenoid fossa and that of the bony covering of the superior semicircular canal

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Publication date: Available online 29 December 2017
Source:Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Author(s): Rafael Crovetto-Martínez, Carlos Vargas, Iñigo Lecumberri, Amaia Bilbao, Miguel Crovetto-De la Torre, Jaime Whyte-Orozco
ObjectivesDehiscence of the superior semicircular canal (SSC) has been associated with alteration of the temporomandibular joint, although data explaining this association are lacking. The present study examined the correlations between the presence of dehiscences and thickness of the bone covering the SSC and the roof of the glenoid fossa (RGF).Study designComputed tomography was used in a cross-sectional analysis of the presence of dehiscences and thickness of the bone overlying the SCC and RGF in 156 temporal bones of 78 patients. The correlations of the presence of dehiscences in the SSC and ipsilateral RGF and the thickness of bone covering the SSC and RGF were analyzed with the chi-squared or Fisher exact test. The relationship between the thickness of the bone overlying the SCC and RGF was analyzed by the Spearman correlation coefficient and the Kruskal-Wallis test. The relationship of the thickness of the RGF to the covering of the SCC and to age and gender was analyzed with the general linear model.ResultsSignificant correlations were found between the presence of dehiscences and thickness of the bone overlying the SSC and RGF (p<0.001).ConclusionsThere is a morphological relationship between the structure of the SSC and RGF.



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