Comparative study on bond strength of porcelain fused to CAD/CAM and to cast pure titanium
10.3969/j.issn.1001-3733.2015.03.06
- VernacularTitle:CAD/CAM纯钛和铸造纯钛与瓷结合强度的对比研究
- Author:
Suran WU
;
Zhao ZHANG
;
Shuo YUAN
;
Chen ZHAO
;
Changjun GUO
- Publication Type:Journal Article
- Keywords:
CAD/CAM pure titanium;
Casting pure titanium;
Titanium porcelain crown;
Titanium-ceramic bonding strength;
Three-point bending test
- From:
Journal of Practical Stomatology
2015;(3):327-330
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To compare the titanium-porcelain bonding strength between CAD/CAM and cast pure titanium.Methods:Pure titanium samples were prepaired by CAD/CAMand casting respectively and fused with porcelain.The bond strength between tita-nium and porcelain of the samples was measured with three-point test.The titanium-porcelain interface was investigated under scanning electronic microscope(SEM).Results:The bond strength of CAD/CAMpure titanium to porcelain was (35.95 ±3.74)MPa and cast pure titanium to porcelain was (28.37 ±1 .98)MPa(P <0.05).SEMobservation showed that there was thin transition layer between titanium substrate and ceramic in CAD/CAM bond interface,titanium and porcelain combined closely,no obvious pores.However, there was thicker transition layer and small pore in cast pure titanium to porcelain bonding interface.Conclusion:The bonding strength of porcelain to CAD/CAMpure titanium is greater than that of porcelain to casting pure titanium.
