Welcome Dear Guest
To create a new topic please register on the forums. For help contact : discussdentistry@hotmail.com
- This topic has 0 replies, 1 voice, and was last updated 18/04/2016 at 7:16 pm by
.
-
Although several adhesive resin-based sealers have recently been introduced, chemical surface analyses of adhesive interface have not yet been studied. In this study, Energy-dispersive x-ray spectroscopy (EDS) microanalysis, Fourier transform infrared (FT-IR) analysis and Scanning electron microscopy (SEM) observation were executed to investigate chemical characteristics of roots filled with a 4-META-containing resin-based MetaSEALTM (Hybrid Root SEAL; equivalent product to MetaSEALTM, marketed in Europe by Sun Medical, Japan).
Energy-dispersive x-ray spectroscopy (EDS) microanalysis, Fourier transform infrared (FT-IR) analysis and Scanning electron microscopy (SEM) observation were executed to investigate chemical characteristics of roots filled with Hybrid Root SEAL (HRS)
Results:
SEM revealed that resin tags and hybrid-like layer were formed in HRS/dentin interface, and resin-impregnated layer without interfacial gap-formation was observed in the HRS/GP interface.SEM of resin-dentin interface
EDS element analysis demonstrated different calcium, silicon, carbon and zinc contents in radicular dentin, hybrid-like layer, HRS, resin-impregnated layer and GP, respectively. EDS line-scan showed the amount of zinc rapidly decreased from GP towards to the resin-impregnated layer, but the amount of carbon gradually increased in resin-impregnated layer.
Interface between MetaSEAL TM and radicular dentin
Fig. 2 Line-scan in the vicinity of resin-dentin interface.Fig. 4 SEM micrograph of a cross-sectional view.Fig. 3 Superimposition of EDS element mapping.Interface between MetaSEAL TM and GP
Fig. 5 SEM micrograph of a cross-sectional view.Fig. 6 Line-scan in the vicinity of resin-GP interface.FT-IR analysis showed that the absorption peaks of hybrid-like layer were similar to these of radicular dentin and HRS.
Conclusion:
These results indicated that Hybrid Root SEAL could bond to radicular dentin and GP via the formation of hybrid layers.
- You must be logged in to reply to this topic.