TENSILE-STRENGTH OF THE BOND BETWEEN RESIN TO ENAMEL ETCHED WITH PHOSPHORIC-ACID CONTAINING FLUORIDE

被引:11
作者
GRAJOWER, R
GLICK, A
GEDALIA, I
KOCHAVI, D
机构
[1] HEBREW UNIV JERUSALEM,HADASSAH SCH DENT MED,DEPT PREVENT DENT,JERUSALEM 91000,ISRAEL
[2] HEBREW UNIV JERUSALEM,DENT MAT UNIT,JERUSALEM 91000,ISRAEL
关键词
D O I
10.1111/j.1365-2842.1979.tb01504.x
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
The tensile bond strength of Epoxylite 9075 and Enamelite to enamel treated with NaF and SnF2, at two concentrations, in the etching acid (H3PO4) was determined. The average fracture stress of those samples in which fracture occurred in the resin only, may be considered as the tensile strength of the resin, 69·8 + 5·6 kg/cm2. The mean fracture stresses of the Epoxy 9075 systems etched with pure phosphoric acid or with acid solutions containing 0.5 % F salts were significantly higher than those treated with acid solutions containing 2 % F salts. Incorporation of NaE or SnF2 in the etching solutions highly increased the fluoride concentration of enamel. The fluoride increase depended on the fluoride concentration of the etching solution and was greater for NaF than SnF2. Copyright © 1979, Wiley Blackwell. All rights reserved
引用
收藏
页码:267 / 272
页数:6
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