[Study on ion-coating surface treatment of dental alloys for adhesion. 2. Effect of Sn and Cu-Sn target on Au-Ag-Pd alloy].
Previous study found that ion coating treatment with Cu target demanded 10 minutes of treatment to achieve the durable adhesion with 4-META resin. For clinical application, it's indispensable to shorten the treatment period. Sn and Cu-Sn target were examined in this study. 4 minutes of treatment with Sn target showed high bond strength of adhesion. However, the excess of treatment time over 8 minutes caused the remarkable decrease of adhesion durability against thermal cycling. In clinical situation, many of the prosthesis possess the wings of complex shape and it's difficult to attain the uniform coating by only once treatment. However, the repetition of treatment with Sn target is undesirable because of the decrease of adhesion durability. Favorable result was shown by 4 minutes of treatment with Cu-Sn target and even by 30 minutes of treatment, same result was attained. With this ion treated specimens of Au-Ag-Pd alloy sandblasted, the adhesive bond strength of above 200 kgf/cm2 was maintained after 100,000 thermocycles.
Tanaka
T
T
Hirano
M
M
Matsumura
H
H
Atsuta
M
M
Nagata
K
K
D000180:Acrylic Resins; D000268:Adhesiveness; D003300:Copper; D001840:Dental Bonding; D003738:Dental Cements; D006047:Gold Alloys; D007477:Ions; D010165:Palladium; D012834:Silver; D014001:Tin
D000180:Acrylic Resins; D003738:Dental Cements; D006047:Gold Alloys; D007477:Ions; D012834:Silver; D010165:Palladium; D014001:Tin; D003300:Copper; C031172:4-META resin