Crovetto-Martínez Rafael, Vargas Carlos, Lecumberri Iñigo, Bilbao Amaia, Crovetto-De la Torre Miguel, Whyte-Orozco Jaime
Department of Stomatology II, Faculty of Medicine and Dentistry, University of the Basque Country/EHU, Getxo, Spain.
Basurto University Hospital, Vizcaya, Spain.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2018 Apr;125(4):358-363. doi: 10.1016/j.oooo.2017.12.008. Epub 2017 Dec 29.
Dehiscence 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).
Computed 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 by using the χ or Fisher's exact test. The relationship between the thickness of the bone overlying the SCC and RGF was analyzed by using the Spearman correlation coefficient and the Kruskal-Wallis test. The relationship between the thickness of the RGF and the covering of the SCC and patient age and gender was analyzed with the general linear model.
Significant correlations were found between the presence of dehiscences and thickness of the bone overlying the SSC and RGF (P < .001).
There is a morphologic relationship between the structure of the SSC and RGF.
上半规管（SSC）裂开与颞下颌关节改变有关，尽管缺乏解释这种关联的数据。本研究检测了SSC裂开的存在与覆盖SSC和关节盂窝顶（RGF）的骨厚度之间的相关性。
对78例患者的156块颞骨进行计算机断层扫描，对SSC和RGF上骨的裂开情况及骨厚度进行横断面分析。采用χ检验或Fisher精确检验分析SSC和同侧RGF裂开的存在与覆盖SSC和RGF的骨厚度之间的相关性。采用Spearman相关系数和Kruskal-Wallis检验分析覆盖SSC和RGF的骨厚度之间的关系。采用一般线性模型分析RGF厚度与SSC覆盖情况、患者年龄和性别的关系。
发现裂开的存在与覆盖SSC和RGF的骨厚度之间存在显著相关性（P < 0.001）。
SSC和RGF的结构之间存在形态学关系。
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