Analysis of the dentin-resin interface by use of laser Raman spectroscopy.
Analysis of the dentin-resin interface by use of laser Raman spectroscopy.
复制标题
使用激光拉曼光谱分析牙本质-树脂界面。
DOI：
10.1016/s0109-5641(01)00093-8
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
B. Moore
中科院分区：
文献类型：
--
作者：
M. Miyazaki;H. Onose;B. Moore
目的目前认为树脂粘接剂与牙本质的粘接是由于粘接树脂渗入表面脱矿牙本质的结果。本研究的目的是调查的树脂浸渍牙本质（混合）层的化学组成使用micro-Raman spectroscopy.MethodsResin复合材料与牛牙本质的两步粘结系统，标本平行于牙本质小管。然后将这些表面抛光至1μm金刚石膏。拉曼光谱沿沿着垂直于牙本质-粘接剂界面的线在计算机控制的X-Y工作台上以0.2μm的步长连续记录。羟基磷灰石（960 cm-1，P-O），粘合剂树脂（640 cm-1，芳香环），和有机基质（1450 cm-1，C-H）在牙本质-粘合剂粘结area.ResultsFrom的拉曼光谱结果，混合层代表了一个渐进的过渡，从树脂侧到牙本质侧的粘合剂的相对量。差饱和度的证据的粘合剂树脂在脱矿牙本质与一瓶粘合剂systemsdetected.SignificanceFrom本研究的结果，混合层组合物的不均匀性被检测到，和树脂浸渍的程度被发现是不同的粘结系统测试。
ObjectivesAdhesion of resin-bonding agents to dentin is currently believed to result from impregnation of adhesive resin into superficially demineralized dentin. The purpose of this study was to investigate the chemical composition of the resin-impregnated dentin (hybrid) layer using a micro-Raman spectroscopy.MethodsResin composites were bonded to bovine dentin with the two-step bonding systems, and specimens were sectioned parallel to dentinal tubules. These surfaces were then polished down to 1μm diamond pastes. Raman spectra were successively recorded along a line perpendicular to the dentin–adhesive interface by steps of 0.2μm on a computer controlled X–Y stage. The relative amounts of hydroxyapatite (960cm−1, P–O), adhesive resin (640cm−1, aromatic ring), and organic substrate (1450cm−1, C–H) in the dentin–adhesive bonding area were calculated.ResultsFrom the Raman spectroscopy results, the hybrid layer represents a gradual transition in the relative amount of adhesive from the resin side to dentin side. Evidence of poor saturation of the adhesive resin in the demineralized dentin with the one-bottle adhesive system was detected.SignificanceFrom the results of this study, inhomogeneity of the hybrid layer composition was detected, and the degree of resin impregnation was found to be different between the bonding systems tested.
影响因子：
2.2
作者：
H. Sano;T. Takatsu;B. Ciucchi;Horner Ja;W. G. Matthews;D. Pashley
通讯作者：
H. Sano;T. Takatsu;B. Ciucchi;Horner Ja;W. G. Matthews;D. Pashley
牙本质-粘合剂界面处未受保护的蛋白质。
DOI：
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发表时间：
1999
期刊：
Quintessence international (Berlin, Germany : 1985)
影响因子：
--
作者：
Spencer,P;Swafford,JR
通讯作者：
Swafford,JR