三种乳牙充填材料边缘封闭性的实验研究

目的 :为临床寻找一种更适合乳牙特点的充填材料。方法 :采用0 5%碱性品红染色渗入检测法 ,对三种临床上常用的乳牙充填材料进行离体乳牙充填物边缘封闭性实验。结果 :玻璃离子粘固粉与银汞合金的边缘封闭性较好 ,二者差异无显著性(P>0 05),而磷酸锌粘固粉边缘封闭最差与前者比较(P<0 05)。结论 :结合乳牙的解剖与临床特点 ,玻璃离子粘固粉更适合乳牙的充填治疗

Experimental research of marginal seal in three kinds of milk teeth filling materials in isolated teeth

Objective:To choose the best clinical milk teeth filling material for the anatomy and clinical feature of milk teeth in three kinds of tooth filling materials.Methods:0.5%basic fushsin had been used to test the marginal seal of three kinds of milk teeth filling materials.Results:There was no significant difference between the effusion of glass ionomer cement and amalgam(P>0.05),the effusion of zinc phosphate cement was the most poor in three kinds of filling materials via microleakage(P<0.05).Conclusion:The glass ionomer cement was more fit for milk teeth filling according to the anatomy and climical feature of milk teeth.