Title: Effects of different treatments on the bond strength of titanium to porcelain

Authors: Jianxue Li; Hong Yao; Hong Liu; Wenyan Tian; Dongyang Ma; Yan Guo

Addresses: Department of Stomatology, Lanzhou General Hospital, Lanzhou Command, PLA, Lanzhou 730050, Gansu, China ' Department of Stomatology, Lanzhou General Hospital, Lanzhou Command, PLA, Lanzhou 730050, Gansu, China ' Department of Stomatology, Lanzhou General Hospital, Lanzhou Command, PLA, Lanzhou 730050, Gansu, China ' Department of Stomatology, Lanzhou General Hospital, Lanzhou Command, PLA, Lanzhou 730050, Gansu, China ' Department of Stomatology, Lanzhou General Hospital, Lanzhou Command, PLA, Lanzhou 730050, Gansu, China ' Department of Stomatology, Lanzhou General Hospital, Lanzhou Command, PLA, Lanzhou 730050, Gansu, China

Abstract: This study focused on the effects of micro-arc oxidation on the bond strength of the porcelain-titanium system. The phase, morphology, and oxide layer thickness of titanium were evaluated. In particular, the bond strength of porcelain fused to titanium was measured using a three-point bending test. Statistical analyses were performed using a one-way analysis of variance. Differences in the surface morphologies and the phase components were observed in three groups. For micro-arc oxidation specimens, the bonding of titanium and porcelain was compact with a thin oxide layer. The mean bond strength of the micro-arc oxidation group, pre-oxidation group and control group was 42.40 ± 4.35 Mpa, 34.28 ± 2.84 Mpa, and 28.58 ± 2.74 Mpa, respectively. When titanium was subjected to micro-arc oxidation treatment, the bond strength was significantly increased compared with the pre-oxidation group and the control group (p < 0.05). These results suggest that the micro-arc oxidation treatment could be an effective but simple method for increasing the titanium-ceramic bonding strength.

Keywords: micro-arc oxidation; bond strength; titanium; porcelain; phase; surface morphology; oxide layer thickness; three-point bending test; ANOVA; titanium-ceramic bonding.

DOI: 10.1504/IJSURFSE.2014.059305

International Journal of Surface Science and Engineering, 2014 Vol.8 No.1, pp.1 - 10

Received: 04 Dec 2012
Accepted: 22 Aug 2013

Published online: 17 Feb 2014 *

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