RỐI LOẠN THỰC THỂ VỀ RỐI LOẠN KHỚP THÁI DƯƠNG HÀM VÀ KHỚP CẮN CỦA HỌC SINH LỚP 10 TRƯỜNG LIÊN CẤP HERMANN GMEINER HÀ NỘI NĂM 2024

Abstract

Introduction: The physical disorders of temporomandibular joints and occlusions are rather common among students both in Vietnam and worldwide. However, its valid evidence is limited, especially among secondary school students. Objective: Describe physical disorders of temporomandibular joints and occlusions of 10th-grade students at Hermann Gmeiner Hanoi inter-school in 2024. Subject and methods: A cross-sectional study was conducted on 151 10th-grade students at Hermann Interschool Gmeiner for the 2024–2025 academic year, comprising 73 males and 78 females. The temporomandibular joint, and occlusion status were determined by clinical examination. Results: Facial asymmetry with upper jaw midline deviation accounts for 21.9%, and lower jaw midline accounted for 41%. The average value of midline deviation of the upper jaw was 1.50±0.81 mm in men, and 1.29±0.47 mm in women. The average midline deviation of the upper jaw was 1.50±0.81 mm in men and 1.29±0.47 mm in women. For the lower jaw, the average midline deviation is 1.72±0.86 mm in men and 1.43±0.66 mm in women. There was no statistically significant difference between men and women (p>0.05). Pain disorders and sounds in the right temporomandibular joint accounted for 2.6% and 6.6%, respectively, and 0.7% and 5.9% for the left. Malocclusion disorder: crooked teeth account for 37%, 17.2% had a deep bite, 21.1% had overbite increased >3 mm, 16.6% had an open bite and 25.9% overbite of anterior teeth and crossbite of posterior teeth. The dental arch shape was oval with 84.8% of the upper dental arch and 75.5% of the lower dental arch. Correlation according to Angle's classification was mainly type I for both tooth 6 (first molar) and tooth 3 (canine), both right and left. Conclusions: The physical disorders of temporomandibular joints and occlusions are rather commonly among students at the 10^th grade. There is a need to treat to ensure the physical development of these students.