玻璃离子或树脂垫治疗乳牙期及混合牙列早期前牙反的效果比较

An investigating study of correcting anterior crossbite of deciduous and early mixed dentitions with occlusal guidance of glass ionomer cement or resin

目的比较玻璃离子或树脂垫与传统垫舌簧矫治器在治疗乳牙期和混合牙列早期前牙反时的效果。方法选取10位能熟练运用这两种方法治疗前牙反的医师,设计21个调查项目进行问卷调查,对调查结果进行问卷打分,以评价这两种方法的效果。结果玻璃离子或树脂垫与传统垫舌簧矫治器在21项比较内容中,在矫治疗程问卷评分分别为3.90±1.88和3.80±2.10,两者比较无统计学意义;在口腔印模制取、矫治器制作简单性、综合评价等其余20项评价指标,两种治疗方法的评分比较均有统计学差异(P<0.05)。结论在治疗乳牙期及混合牙列早期的前牙反时,玻璃离子或树脂垫的疗效优于传统的垫舌簧矫治器,值得临床推广。

Objective To compare the advantage and disadvantage of occlusal guidance of glass ionomer cement or resin with traditional splint and lingual spring in clinical through the questionair for doctor. Methods 21 research items were investigated by 10 clinical doctors who can accomplish the therapy with those two methods to correct anterior crossbite skillfully. And the research items were ： whether the oral impression, making appliance simplicity, early period comfort when wearing appliance, the length of appliance adaptation, appliance wearing time, wire broken of appliance, appliance wire scratching gingival mueosa, anterior tooth loose in the treatment, dental pain in the treatment, follow-up interval, oral hygiene, treatment duration, medical cost, the lower anterior teeth cor- rection, cusp and fossa relationship close together, masticatory efficiency, pronunciation, appearance, children with the degree, the acceptance of guardian, comprehensive evaluation. Results Comparing the two treatment methods of 21 research items, the occlusal guidance of glass ionomer cement or resin and the traditional splint lingual spring in the course of orthodontic treatment, the question- naire scores were 3.90 ±1.88 and 3.80±2.10, there was no statistically significant difference （P 〉0.05）. However, for the oral impression, making appliance simplicity, comprehensive evaluation and other 20 evaluation items ： the scores of the two treatment methods had highly significant difference （ P 〈 0.05 ）. Conclusion Compared with the traditional splint and lingual spring to correct anterior crossbite, the occlusal guidance of glass ionomer cement or resin is a fixed functional appliance, which can be easily operated in clinic and has many advantages. This technology is worthy of extensive promotion.