Raman spectroscopic analysis of post-cement-root canal dentin interface
Li, Z.-C.; Wu, X.; Chen, X.-D.; Ma, H.-M.; Hao, F.-Y.
Hua Xi Kou Qiang Yi Xue Za Zhi 25(3): 292-294; 298
2007
ISSN/ISBN: 1000-1182 PMID: 17629211 Document Number: 607943
To examine the compositions of those adhesion modes between luting cements and canal dentin, and to evaluate the dentin-cement-post interface by Laser-Ranian spectroscopy. Three representative luting cements (zinc phosphate, glass ionomer and resin cements), two kinds of prefabricated posts (titanium and fiber-glass), six extracted intact human maxillary anterior teeth were used canal dentin after endodontic treatment. Laser-Raman spectroscopy measure of cement, post and canal dentin before and after luting together. There are no evident Raman spectra change cross the ZPC/dentin interface and glass ionomer/dentin interface, while cross the resin/dentin interface and resin/glass fiber post interface can be seen special Raman spectra. Laser-Raman microspectroscopy is a useful analytical technique for evaluation interface between dentin and luting cements. Resin cement may interact with dentin and glass fiber post.