Study on Correlation between Crossbite and Temporomandibular Joint Disc Displacement.

doi:10.13701/j.cnki.kqyxyj.2018.03.011

Abstract

Abstract: Objective: To investigate the correlation between crossbite and temporomandibular joint disc displacement (DD). Methods: Fifty-nine cases were collected, who were diagnosed as DD with crossbite. The patients with DD were divided into disc displacement with reduction and disc displacement without reduction. They were classified in terms of the crossbite tooth location, morphological function, crossbite tooth number, and relative median line of crossbite tooth. The data were analyzed with SPSS22.0 software package and X2 test. Results: There was a significant correlation between crossbite tooth position and DD. Crossbite in anterior and posterior teeth had a high incidence of disc displacement without reduction (P<0.05). The other classification were no significance. Conclusion: Crossbite might be a risk factor in DD, and bite fatigue might induce DD.

Key words: Temporomandibular joint disc displacement, Crossbite, Therapy

GU Wen-yan,JIA Meng-ying, CHEN qing-li, XU Ying-jie, LV Yao-guang, GONG Zhong-cheng. Study on Correlation between Crossbite and Temporomandibular Joint Disc Displacement.[J]. Journal of Oral Science Research, 2018, 34(3): 258-261.

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