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目的:观察T4K矫治器矫治混合牙列期错畸形的临床效果。方法:选择50例替牙期错畸形患者,年龄7～10岁,戴用澳大利亚Myofunctional Research公司的软硬质T4K矫治器,通过治疗前后的X线头影测量,进行配对t检验。结果:矫治后牙齿排列整齐,牙弓形态标准,ANB、SNB、NP/FH、U1/NA、U1/L1、U1/SN、U1-NA、OJ有显著性变化。口腔不良习惯改善。结论:T4K能有效破除口腔不良习惯,适合混合牙列期部分错畸形的矫治。
Objective: To observe the clinical effect of T4K appliance in treatment of mixed dentition misdiagnosis. Methods: Fifty patients with staggered malformations were selected, aged from 7 to 10 years old. They were treated with the soft and hard T4K appliance of Myofunctional Research Company in Australia. Paired t-tests were performed by X-cephalometry before and after treatment. Results: Tooth arrangement was orderly, dental arch morphology standard, ANB, SNB, NP / FH, U1 / NA, U1 / L1, U1 / SN, U1-NA and OJ had significant changes. Improper oral habits improve. Conclusion: T4K can effectively eliminate the oral bad habit and is suitable for the correction of partial malocclusion in mixed dentition.