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Meta-Analysis
. 2019 Oct;25(7):1697-1706.
doi: 10.1111/odi.13016. Epub 2019 Apr 22.

Prevalence of temporomandibular disorders and its clinical signs in Chinese students, 1979-2017: A systematic review and meta-analysis

Congman Xie  1   2   3 , Min Lin  1   3 , Hongmei Yang  2   3 , Aishu Ren  1   2   3
Affiliations
Meta-Analysis

Prevalence of temporomandibular disorders and its clinical signs in Chinese students, 1979-2017: A systematic review and meta-analysis

Congman Xie et al. Oral Dis. 2019 Oct.

Abstract

Objective: This study intends to assess the prevalence of temporomandibular disorders and its clinical signs in Chinese students.

Materials and methods: Search strategies were performed in seven electronic databases, and the reference lists from potentially relevant studies were searched manually. Only observational studies that met the eligibility criteria were selected. A validated instrument was used to evaluate the quality of the included studies. A random-effects model was used to calculate the pooled prevalence of temporomandibular disorders and its clinical signs.

Results: Twenty-three articles that met the eligibility criteria were included in this review and meta-analysis. The prevalence of temporomandibular disorders was 29.1% (95% confidence interval [CI], 23.7-35.1; n = 12,702), and a significant difference was observed between males and females. The most prevalent sign was temporomandibular joint sounds (17.4%; 95% CI, 13.8-20.6; n = 6,615) followed by abnormal jaw movement (12.3%; 95% CI, 9.1-16.7; n = 5,496) and pain (9.9%; 95% CI, 7.4-13; n = 4,552).

Conclusions: The overall prevalence of temporomandibular disorders in Chinese students was approximately 29.1%, and a statistically significant difference was observed between males and females. The most prevalent sign was temporomandibular joint sounds (17.4%), followed by abnormal jaw movement (12.3%) and pain (9.9%).

Keywords: Chinese students; meta-analysis; prevalence; temporomandibular disorders.

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References

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