Effect of wettability of adhesive resins on bonding to dentin.
Effect of wettability of adhesive resins on bonding to dentin.
复制标题
粘合树脂的润湿性对牙本质粘合的影响。
DOI：
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发表时间：
1994
影响因子：
1.4
通讯作者：
E. Asmussen
中科院分区：
文献类型：
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作者：
W. Finger;M. Inoue;E. Asmussen
本研究旨在研究以不同溶解度参数δ为表征的5种胶粘剂对牙本质的润湿性，以及树脂浸渍牙本质层厚度（RIL）与剪切结合强度（SBS）之间的关系。牙本质切口表面分别用pH 1.25、3.6或7.4的调理剂处理。分别测定了20个试件的剪切粘结强度。通过扫描电镜对垂直于键合界面断裂的试样进行了RIL测定。当使用δ为32、30或39 （MJ1/2/m3/2）的树脂时，两种酸性调理剂预处理的牙本质上的ril均为4微米和1微米。当使用pH为7.4的调理剂和δ值为20和25的树脂时，没有明显可测量的RIL。对于同一种粘接剂，应用于不同条件的牙本质部位时，SBS无差异。δ bbb30的树脂产生的SBS明显高于δ较小的两种胶粘剂。
The purpose of this study was to investigate on human dentin the relationships between, on the one hand, the wettability of five adhesive compounds, characterized by different solubility parameters delta, and on the other, the thickness of the resin impregnated dentin layer (RIL) and the shear bond strength (SBS). Cut dentin surfaces were treated with conditioners of pH 1.25, 3.6 or 7.4. Shear bond strength was measured on 20 specimens each. RIL was determined by scanning electron microscope on specimens fractured perpendicularly to the bonding interface. When resins with delta 32, 30 or 39 (MJ1/2/m3/2) were used RILs were consistently 4 microns and 1 micron on dentin pretreated with the two acidic conditioners. No clearly measurable RIL was shown after application of the conditioner with pH 7.4, and when resins with delta-values of 20 and 25 were applied. For the same adhesive no difference in SBS was found, when applied on the differently conditioned dentin sites. Resins with delta > 30 produced significantly higher SBS than the two adhesives with smaller delta.