Curing efficiency of a photo- and dual-cured resin cement polymerized through 2 ceramics and a resin composite.
OBJECTIVE
The influence of the curing mode (dual vs light) and of the photopolymerization through ceramic or resin composite on the degree of remaining carbon bonds was investigated via infrared spectroscopic analysis for 1 resin cement (Calibra, Caulk/Dentsply).


METHODS
The 0.5-mm cement layer was photopolymerized for 40 s through the 2-mm-thick ceramic Empress 2 (Ivoclar) and Vitadur Alpha (Vident) and the laboratory-processed resin composite Sinfony (3M/ESPE).


RESULTS
The dual-cured system polymerized better than the light mode. Photopolymerization of the resin cement through the translucent materials reduced its curing efficiency in both curing modes. The resin composite induced a more negative effect than the 2 ceramics tested.


CONCLUSIONS
The curing mode and photopolymerization of dual-cured resin cements through esthetic restorative materials affects the degree of remaining double carbon bonds.
Department of Operative Dentistry, School of Dentistry, University of Athens, Greece, 2 Thivon Str, Goudi, Athens GR-11527, Greece. papazoglou.dental@otenet.gr
Efstratios
E
Papazoglou
Chris
C
Rahiotis
Afrodite
A
Kakaboura
Michael
M
Loukidis
D000538:Aluminum Silicates / Q000737:chemistry; D002244:Carbon / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry*; D003776:Dental Porcelain / Q000737:chemistry; D006801:Humans; D008027:Light; D018020:Lithium Compounds / Q000737:chemistry; D008422:Materials Testing; D055095:Optics and Photonics; D011108:Polymers / Q000737:chemistry; D017680:Potassium Compounds / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry* / Q000528:radiation effects; D013055:Spectrophotometry, Infrared; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties
D000538:Aluminum Silicates; C433205:Calibra; D003188:Composite Resins; C118557:Empress 2; D018020:Lithium Compounds; D011108:Polymers; D017680:Potassium Compounds; D019279:Resin Cements; C477352:Sinfony composite resin; C483027:vitadur alpha; D003776:Dental Porcelain; C016447:feldspar; D002244:Carbon