"Titanium - biocompatible or a health hazard?"
HMB No. 1-2, 1999

"Barely noticing we have become surrounded and 'invaded' by titanium in the past thirty years…Extensively used titanium implants have become a great success. In later years, however, health effects have been reported, especially in patients with an 'amalgam history'….your birth control pills, antidepressants, cosmetics, vitamins, toothpaste and diary products may contain titanium dioxide…Unable to find any documentation to support the assumed biocompatibility, the Swedish Federation of County Councils recently proposed a ban against the use of titanium dioxide in pharmaceuticals"

An article on the pros and cons of titanium implants and titanium dioxide. The undertitles are "Magnetic sand", "Not pure in nature", "Titanium mines/production", "Increasing demand", "No major environmental problem", "Accumulation in the lungs", "High levels in bile", "Titanium and breast cancer?", "A transition metal", "Impossible to remove", "8 % implant failure", "Not only titanium", "Implants caused problems", "Electrical currents", "Yellow nails", "Titanium and fluoride", "Semiconductor", "TiO₂ as a pesticide?", Regarding titanium dioxide: "Beware of E171", "People feel bad", "Immune reactions", "Free radicals", "Resistance to antibiotics", "Prosac contains TiO₂", "Benefit may outweigh side-effects", "Ban proposed in Sweden", "TiO₂-free dental materials". The article has 33 scientific references. A problem with some titanium implants is that they may also contain a small screw made of gold, the presence of which increases corrosion.