Table 1.

Mean of elemental compositions of different implant samples obtained using PMI testing.

Composition (% by mass)	Sample 1 (Mk III)	Sample 2 (Myriad)	Sample 3 (Nobel Replace)	Sample 4 (MIS Seven)	Sample 5 (Alpha dent)
Titanium	99.32	99.47	89.49	99.16	89.04
Iron	0.262	0.233	2.16	0.305	0.45
Manganese	0.133	–	–	–	–
Chromium	0.263	0.273	–	0.382	–
Tin	–	–	0.013	–	–
Vanadium	–	–	4.17	–	4.26
Molybdenum	–	–	0.12	–	–
Zirconium	–	–	0.048	–	–
Niobium	–	–	0.28	0.065	–
Zinc	–	–	0.084	–	–
Tungsten	–	–	–	0.060	–
Nickel	–	–	–	–	0.079