[Comparison of three-dimensional position on cone beam computed tomography of temporomandibular joint osteoarthrosis].

Autor:	Xiaomin L, Xiaoyu Y, Yifan C, Lijie B
Jazyk:	čínština
Zdroj:	Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology [Hua Xi Kou Qiang Yi Xue Za Zhi] 2015 Apr; Vol. 33 (2), pp. 161-5.
Abstrakt:	Objective: This study investigates the effect of temporomandibular joint osteoarthritis (TMJOA) on different stages of condylar three-dimensional position and provides a theoretical basis for clinical application. Methods: The cone beam computed tomography (CBCT) images of 108 TMJOA patients were analyzed and divided into four stages based on the stage standard of osteoarthrosis X-ray performance proposed by Xuchen Ma in 2005. A total of 28 defect-free temporomandibular joint disorders were used as the control group. Differences in condylar position and condylar axis horizontal angle were evaluated and compared. Results: No significant differences were found in terms of sagittal relationship, but condylar axis horizontal angle showed a significant difference (F = 3.872, P = 0.005). The horizontal angle values of stage 1 in the TMJOA group were lower than those in stages 2 and 3 (P = 0.027, P = 0.000), whereas the horizontal angle values of stage 2 and control groups were lower than those of stage 3 group (P = 0.004, P = 0.047). Conclusion: Condylar horizontal angle differed in each stage of TMJOA, but no significant difference between the parasagittal positions of the condyles was observed in each stage.
Databáze:	MEDLINE
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