Tensile strength of the bond between resin to enamel etched with phosphoric acid containing fluoride.
Tensile strength of the bond between resin to enamel etched with phosphoric acid containing fluoride.
复制标题
用含氟化物的磷酸蚀刻的树脂与搪瓷之间的粘合的拉伸强度。
DOI：
10.1111/j.1365-2842.1979.tb01504.x
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发表时间：
1979
影响因子：
2.9
通讯作者：
David Kochavi
中科院分区：
文献类型：
--
作者：
R. Grajower;A. Glick;I. Gedalia;David Kochavi
测定了 Epoxylite 9075 和 Enamelite 在蚀刻酸 (H3PO4) 中用两种浓度的 NaF 和 SnF2 处理过的搪瓷的拉伸粘合强度。仅在树脂中发生断裂的那些样品的平均断裂应力可以被认为是树脂的拉伸强度，69.8+/-5.6kg/cm2。用纯磷酸或含 0.5% F 盐的酸溶液蚀刻的 Epoxy 9075 系统的平均断裂应力明显高于用含 2% F 盐的酸溶液处理的系统。在蚀刻溶液中加入NaF 或SnF2 大大增加了牙釉质的氟化物浓度。氟化物的增加取决于蚀刻溶液的氟化物浓度，NaF 的增加大于 SnF2。
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 NaF or SnF2 in the etching solutions highly increased the fluoride concentration of enamel. The fluoride increase dependend on the fluoride concentration of the etching solution and was greater for NaF than SnF2.