氧化锆嵌体近远中面制备固位沟对其黏接固位力影响的实验研究  

An experimental study about the influence on its adhesion retention force of making retention ditches on mesial and distal surfaces of zirconium-based inlay ceramics

作　　者：张莹 唐旭炎[1] 曹颖[1] 

机构地区：[1]安徽医科大学附属口腔医院安徽省口腔疾病研究中心实验室,安徽合肥230032

出　　处：《安徽医药》2018年第1期109-111,共3页Anhui Medical and Pharmaceutical Journal

基　　金：安徽省高校省级自然科学基金项目(KJ2014A121)

摘　　要：目的研究探讨氧化锆嵌体近远中面制备固位沟能否提高其黏接固位力。方法收集完整新鲜离体磨牙10颗,统一制备嵌体洞型,CAD/CAM制作氧化锆嵌体。黏接后,测试嵌体从实验牙上脱位的力值。再于嵌体近远中面制备深度0.5 mm的固位沟,二次黏接后,测试嵌体从实验牙上脱位的力值。结果对制备固位沟前(0 mm)和制备固位沟后(0.5 mm)两组嵌体脱位力值进行配对t检验(t=6.455,P=0.000),差异有统计学意义。结论氧化锆嵌体近远中面制备固位沟可以提高其与黏接剂之间的黏接力,增强氧化锆嵌体的固位力,减少修复体的脱落。Objective To work out the influence on adhesion retention force of making ditches on mesial and distal surfaces of zirconium-based inlay ceramics. Methods Ten integral molars greenly extracted were collected,inlay cavities were prepared. Airconium-based inlay ceramics was produced by CAD/CAM. After adhesion,the adhesion retention force was tested and recorded. Then,ditches were made on mesial and distal surfaces( 0. 5 mm),and the adhesion retention force was tested and recorded after the second adhesion. Results Paired t-test showed that there was significant difference in adhesion retention force between the preparation without ditches and that with ditches. Conclusions Retention ditches made on mesial and distal surfaces of zirconium-based inlay ceramics can enforce adhesion force between zirconium-based inlay ceramics and the adhesive,improve inlay's retention force,and therefore reduce its failure rate.

关 键 词：氧化锆嵌体 黏接固位力 固位沟 

分 类 号：R783.1[医药卫生—口腔医学]