KẾT QUẢ ĐIỀU TRỊ RỐI LOẠN THÁI DƯƠNG HÀM BẰNG MÁNG NHAI ỔN ĐỊNH CÓ SỬ DỤNG T-SCAN HỖ TRỢ

Abstract

Objective: To evaluate the results of using T-scan as an aid in the treatment of temporomandibular joint disorder with a stable occlusal splint. Subjects and methods: Using a non-controlled clinical intervention design, a convenient sample of 36 patients with temporomandibular joint disorder (TMD) aged 18 years and older was selected, diagnosed according to McNeil criteria, from May 2023 to October 2024 at the Department of Dentistry, Hanoi Medical University Hospital and the Institute of Dentistry - Hanoi Medical University. Results: 61.11% of patients had joint noise, of which 38.89% had unilateral noise and 22.22% had bilateral noise. Patients with limited mouth opening had an amplitude of 27.3 ± 2.6mm, which was significantly lower than the normal mouth opening group with an amplitude of 35.6 ± 4.1mm. The maximum intercuspation time when biting the two jaws before treatment was 1.10 ± 0.30 seconds and decreased significantly after 1 month of treatment to 0.80 ± 0.20 seconds. The maximum intercuspation time when biting the two jaws before treatment was 0.90 ± 0.15 seconds and decreased significantly after 1 month of treatment to 0.70 ± 0.11 seconds. The average bite force distribution by half jaw in the pre-treatment positions on the right side was 50.4 ± 9.9%; on the left side was 46.3 ± 9.4%, after treatment with the stable splint (SS) with T-Scan support on the right side was 50.7 ± 1.2% and on the left side was 49.1 ± 1.5%, the difference was statistically significant with p<0.001. Conclusion: The T-scan system provides good support for evaluating the bite and adjusting the splint to effectively treat temporomandibular joint disorders.