[Raman spectroscopic analysis of post-cement-root canal dentin interface].
OBJECTIVE
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.


METHODS
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.


RESULTS
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.


CONCLUSIONS
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.
Li
Zhen-Chun
ZC
Dept. of Prosthodontics, Dalian Stomatological Hospital, School and Hospital of Stomatology, Dalian University, Dalian 116021, China.
Wu
Xuan
X
Chen
Xiao-Dong
XD
Ma
Hong-Mei
HM
Hao
Feng-Yu
FY
D002484:Cementation; D001840:Dental Bonding; D003738:Dental Cements; D003739:Dental Cementum; D003786:Dental Pulp Cavity; D003804:Dentin; D017220:Dentin-Bonding Agents; D005899:Glass Ionomer Cements; D006801:Humans; D011176:Post and Core Technique; D019279:Resin Cements; D012390:Root Canal Therapy
D003738:Dental Cements; D017220:Dentin-Bonding Agents; D005899:Glass Ionomer Cements; D019279:Resin Cements