Inter J Stomatol ›› 2013, Vol. 40 ›› Issue (4): 440-443.doi: 10.7518/gjkq.2013.04.006

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Effect of silicate solution in different concentrations on bonding strength of porcelain and pure titanium by liquid-phase deposition technology

Gao Yu1, Wu Zhan’ao1, Feng Weizhong1, Ding Yan1, Zhang Deyun2, Jiang Tao1.   

  1. 1. Dept. of Stomatology, The 359 Hospital of PLA, Zhenjiang 212001, China; 2. Medical Department, The 452 Hospital of PLA, Chengdu 610021, China
  • Received:2012-12-12 Revised:2013-03-14 Online:2013-07-01 Published:2013-07-01

Abstract:

Objective To study the effect of silicate solution in different concentrations on bonding strength of titanium and porcelain by liquid -phase deposition(LPD) technology. Methods Forty pure titanium specimens were randomly divided into four groups according to different surface treatments after sandblasting, and measured the roughness of each group. After the middle area of the samples was veneered with porcelain, a three-point-flexure-test was used to evaluate the bonding strength of titanium to porcelain. The interface of titanium and porcelain was investigated by scanning electron microscope(SEM). Results No definite oxide layer was observed at the interfaces in four groups. The bonding strength of groups of liquid-phase deposition were significantly higher than control group. The mean bonding strength of 0.3 mol·L-1 silicate solution group was the highest. Conclusion Middle layer prepared by LPD technology is significant in improving bonding strength of porcelain and pure titanium.

Key words: liquid-phase deposition, middle layer, pure titanium, titanium porcelain, bond strength


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