[Study of the bonding strength of pure titanium and light-cured hard crown and bridge composite after filming by TiSiN].
OBJECTIVE
To evaluated the bonding strength between pure titanium and Solidex after deposition by magnetron sputtering TiSiN with different content of Si (9%, 19%) and analyzed the surface component by electron probe micro-analysis (EPMA).


METHODS
All pure titanium samples divided into 3 groups according to different surface treatment, then bonded with Solidex light-cured composite. Material test machine was used to measure bonding strength and the surface was analyzed by EPMA.


RESULTS
The bonding strength of deposition with TiSiN groups were higher than unfilming group, increasing the content of Si could enhance the bonding strength between pure titanium and Solidex in TiSiN groups (P < 0.05). EPMA showed amorphous materials like TiN, SiN gathered on the surface in TiSiN groups. There were obvious interspaces between unfilming pure titanium and Solidex, contrary no interspaces was observed in TiSiN groups.


CONCLUSIONS
The bonding strength of filming groups was higher than unfilming group, amorphous material like TiN, SiN gathering on the surface may prevent the microleakage and stop metal ion leaking.
Yin
Lu
L
Dept. of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China.
Guo
Tian-wen
TW
Yu
Shao-bing
SB
Yue
Ye
Y
D003188:Composite Resins; D003442:Crowns; D001840:Dental Bonding; D008422:Materials Testing; D013499:Surface Properties; D014025:Titanium
D003188:Composite Resins; C113676:Solidex; D014025:Titanium