Comparative study on bond strength of porcelain fused to CAD/CAM and to cast pure titanium / 实用口腔医学杂志
Suran WU; Zhao ZHANG; Shuo YUAN; Chen ZHAO; Changjun GUO.
Journal of Practical Stomatology
; (6): 327-330, 2015.
Artículo
en Zh
| WPRIM | ID: wpr-464842
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.
Biblioteca responsable:
WPRO
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