Anodizing Type II (DOTIZE®)
Technology
The DOTIZE® anodizing process replaces the thin natural oxide film present at the implant surface by a thick oxide layer. Micropores and cracks in the base material are reduced by the anodization. The DOTIZE® procedure conforms to the standard AMS (Aerospace Material Specification) 2488.
Range of Application
- Traumatological implants (bone screws, bone nails etc), which should be removed after a defined time and therefore should not be integrated into bone tissue
Advantages of Procedure
- Easier removal of the implants
after fracture healing - Increased resistance to wear compared
with untreated titanium alloys - Increase of up to 15 % in the fatigue strength
compared with untreated base material - No significant changes in implant dimensions
Properties
- Coating thickness: 1–2 µm
- Roughness Rz: ≤ 3 µm
- Hardness: Increase of ~25 %
- Hardened titanium surface