Comparison of depth of dentin etching and resin infiltration with single-step adhesive systems.
Comparison of depth of dentin etching and resin infiltration with single-step adhesive systems.
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DOI：
10.1016/j.jdent.2004.10.024
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发表时间：
2005-07
影响因子：
4.4
通讯作者：
Mitsuo Sato;M. Miyazaki
中科院分区：
文献类型：
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作者：
Mitsuo Sato;M. Miyazaki
目的目前认为，树脂复合材料与牙本质的粘附是由于粘附树脂渗入表面脱矿牙本质的结果。本研究的目的是使用显微拉曼光谱和扫描电子显微镜（SEM），以调查树脂渗透到蚀刻牙本质的程度与单步adhesive systems.MethodsAdhesive系统使用的是一个最多的债券F（德山牙科）和Reactmer债券（Shofu，Inc.）。使用自蚀刻底漆系统Mac Bond II（Tokuyama Dental）作为对照。将树脂复合材料与牛牙本质粘结，并将标本平行于牙本质小管切开。沿着垂直于牙本质-粘接剂界面的线以0.2μm为步长连续记录拉曼光谱，获得光谱。树脂牙本质界面的SEM观察也carried.ResultsThe牙本质-树脂界面的单步胶粘剂系统表现出一个逐渐过渡的相对量的粘合剂从树脂侧到牙本质侧。拉曼显微镜检测到的树脂渗透到脱矿牙本质的宽度大于通过使用SEM的形态分析所获得的。结论从本研究的结果，牙本质-树脂界面的组成的逐渐变化被检测到，与SEM观察到的树脂浸渍的程度小于与拉曼显微镜检测到的。
ObjectivesAdhesion of resin composites to dentin is currently believed to result from impregnation of adhesive resin into superficially demineralized dentin. The purpose of this study was to use micro-Raman spectroscopy and scanning electron microscopy (SEM) to investigate the extent of resin penetration into etched dentin with single-step adhesive systems.MethodsAdhesive systems used were One-Up Bond F (Tokuyama Dental) and Reactmer Bond (Shofu, Inc.). A self-etching primer system Mac Bond II (Tokuyama Dental) was employed as a control. Resin composites were bonded to bovine dentin with the adhesive systems, and specimens were sectioned parallel to dentinal tubules. Raman spectra were successively recorded along a line perpendicular to the dentin-adhesive interface in steps of 0.2μm and the spectra were obtained. SEM observations of the resin–dentin interface were also conducted.ResultsThe dentin–resin interface of single-step adhesive systems showed a gradual transition in the relative amount of adhesive from the resin side to dentin side. The widths of resin penetration into demineralized dentin detected by Raman microscopy were greater than those obtained by the morphological analysis using SEM.ConclusionsFrom the results of this study, a gradual variation in the composition of the dentin–resin interface was detected, and the degree of resin impregnation observed with SEM observation was less than that detected with the Raman microscopy.