›› 2021, Vol. 41 ›› Issue (7): 631-634.

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The correlation between MRI staging and TMD clinical symptoms

  

  • Received:2020-06-19 Revised:2020-11-11 Online:2021-07-28 Published:2021-07-28

Abstract: Objective To evaluate the correlation between temporomandibular disorder (TMD) MRI staging and clinical symptoms. Methods Through a retrospective cohort study, basic information, MRI images, VAS score sheets, and mouth opening were collected from 160 patients attending maxillofacial surgery in our hospital from December 2018 to December 2019. Patients were divided into different age groups (12-18,18-40,40-70 years old). The distribution of TMD patients in different stages was analyzed. The correlation between patient gender and TMD staging, the correlation between TMD patient stage (stage Ⅱ-Ⅳ) and VAS, maximum opening degree were analyzed. SAS9.0 software package was used for Wilcoxon rank sum test. Results The opening degree of Ⅱ-Ⅳ patients was (31.22±9.40), (20.77±6.51), (29.39±5.81) and (22.41±9.18)mm respectively. There was a significant difference in opening degree between stage Ⅱ, stage Ⅲ and Ⅴ (P<0.05). The VAS scores of patients in Ⅱ-Ⅴ period were 20.47±11.30, 64.48±23.51, 51.34±20.47 and 45.61±16.38 respectively, and stage Ⅲ was statistically different from stage Ⅱ(P<0.05). Conclusion MRI can accurately reflect the relationship of the disc condyle in TMD patients. MRI staging has a correlation with TMD clinical symptoms. Patients in stage Ⅲ and Ⅴ have limited mouth opening, and patients in stage Ⅲ have obvious joint pain according to the MRI image of TMD patients.

Key words: temporomandibular joint disorder(TMD), MRI, VAS

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