Alloys For All Metal Prosthesis

Question 0

Predominantly base metals

Answer 0

Ni-Cr alloys ( small castings, crowns, FPD);
Co-Cr alloys ( RPDs);
Corrosion resistance, high strength

Question 1

Ag-Pd alloy

Answer 1

White alloy, predominantly Ag;
>=25% Pd provides nobility and tarnish resistance;
Greater potential for tarnish and corrosion

Question 2

Commercially pure titanium (CP Ti)

Answer 2

All-metal, metal-ceramic, RPDs, implants;
Tarnish and corrosion resistant;
Needs a compatible casting investment, casting machine;
Highest melting point of all metals

Question 3

Titanium alloys

Answer 3

Ti-6Al-4V, most widely used in dentistry;

V is highly toxic; Al is a potential neurotoxic