4Okazaki M,Wang X,Tonguchi M S.Improvement of bond strength in metal-ceramic systems using a gold intermediate layer[J].Dent Mater J,1998,17 (3):163-166.
5Daftary D F,Donovan T.Effect of electrodeposition of gold on porcelain-to-metal bond strength[J].J Prosthet Dent,1987,57(1):41-43.