Ca in the oxidizing layer also enhances adhesion of the HA coating layer to pure titanium as the base material.
- Hydrothermal treatment
Hydrothermal treatment produces a phosphorous-calcium layer on the surface of titanium oxide that provides rapid adhesion and binding between the titanium surface and gingiva (marginal seal).
Phosphorous-calcium layer on the titanium surface
Because of the hydrothermal treatment, calcium and phosphorous are on the surface of the AQB Implant to create a greater seal along the margin between the implant and gingiva.
In general, a very thin (4 nm) oxidized film covers the surface of the titanium.
|2. Hydrothermal treatment
Immerse the AQB Implant in a solution containing calcium and phosphate ions.
The titanium oxidizes during the hydrothermal treatment, while calcium and phosphate ions intrude and diffuse onto the titanium surface.
Hydrothermal treatment thickens the layer of titanium oxide when the oxide film takes in phosphorous and calcium ions to influence the compatibility.
- The thickness of titanium oxide increases due to the hydrothermal treatment (4-8 nm).