Evaluation of the bond strength of ceramic to machine-milled Ti2448 and pure titanium
TAN Yong
GAO Bo
Abstract：AIM:To compare the bonding characteristics of porcelain bonded to machine -milled Ti2448 (Ti -24Nb -4Zr -7.9 Sn)and commercial pure titanium (cp -Ti).METHODS:Ti2448 and cp -Ti specimens were respectively treated by sand -blasting method.The roughness,surface energy and the three -point -bending strength of the treated Ti2448 and cp -Ti bonded to Duceratin Kiss porcelain were tested.The micro -structure and the composition of metal -porcelain interface were examined by SEM and EDS.RESULTS:The roughness,surface energy and three -point -bending strength of Ti2448 (1 .35 μm,36.70 mJ/m2 and 43.90 MPa)were all higher than those of cp -T i(1 .30 μm,33.1 1 mJ/m2 and 30.52 MPa)(P <0.05).There was massive residual porcelain on the metal -porcelain departure surface of the specimens in Ti2448 group,but not in cp -Ti group.On the section of metal -porcelain specimens,Sn was observed penetrating into the porcelain layer in Ti2448 group.CONCLUSION:The better surface wettability and the metal -ceramic bond strength can be obtained on Ti2448 surface by the sand -blasting method than on cp -Ti surface.
Keywords：Ti2448pure titaniumporcelain -fused -to -metametal -ceramic bond strength
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 26-30 )