不同包埋方法对钯银合金铸件边缘适合性的影响  

Effect of Different Investing Methods on the Marginal Seating of Pd-Ag Castings

作　　者：王冰[1] 刘宁宁[2] 何惠宇[3] 

机构地区：[1]新疆医科大学第一附属医院口腔医学中心颌面肿瘤外科,新疆乌鲁木齐830054 [2]新疆医科大学第一附属医院口腔医学院 [3]新疆医科大学第一附属医院口腔修复科

出　　处：《口腔医学研究》2015年第8期783-785,共3页Journal of Oral Science Research

摘　　要：目的:观察有圈包埋及无圈包埋方法对铸造钯银合金边缘适合性的影响。为临床制作钯银合金冠选择合适的包埋方法提供依据。方法:在同一石膏模型上制作40个钯银合金基底冠蜡型,分别进行有圈包埋和无圈包埋。铸件黏固于代型后从中线切成相等两份,检测每组基底冠边缘和轴壁相对应的黏固剂厚度,研究相比边缘适合性。用SPSS统计学软件对本实验数据进行处理。结果:无圈包埋组试件的边缘适合性与有圈包埋组相比有显著性差异(P<0.05)。结论:钯银合金铸造采用无圈包埋时的适合性优于有圈包埋。铸造钯银合金采用无圈包埋,能够有较好的边缘适合性,为患者提供更完美的修复效果。Objective： To observe effects of investments methods with and without ring on marginal seating of the Pd--Ag castings. Methods： Forty unify standard models of Pd-Ag castings were made. Wax patterns were pre- pared on the models and were divided into two groups （n=20 in each group）. Two different investing methods with the same investing material were performed. The marginal seating of the castings was measured by metallurgical microscope. Data were analyzed by SPSS statistical software. Results： The marginal seating of the Pd-Ag castings without ring investment had significant difference compared with that with ring investment （P〈0.05）. Conclusion： The marginal seating of the Pd--Ag castings without ring investment is more accurate than that with ring invest- ment. Investment without ring can improve the marginal seating of the castings.

关 键 词：边缘适合性 包埋 钯银合金 

分 类 号：R783[医药卫生—口腔医学]