The effect of addmixed ti on corrosion resistance of high copper dental amalgam

Abstract EN

The purpose of this study is to investigate the effect of Ti additions on corrosion resistance of high copper dental amalgam.

Ti addition is added in different percentages of ( 0.1, 0.2, 0.3, 1, 2, 3 wt %).

The specimens were prepared according to ADA specification No.

1.

The specimens have been stored at 37 ± 1 Cº using glass chamber prepared for this purpose.

The corrosion test has been carried out according to ASTM standard (G5-87) and at 37 ± 1 Cº.

Titanium addition with mentioned percentages led to shifting the corrosion potential to positive direction, corrosion rate improvement (91 %) at (3 % Ti), and passive layer formation increases with increasing titanium content.

Vickers hardness has been measured after six months from the end of trituration, and it found that the highest hardness value was of the highest titanium content amalgam.