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Introduction: Biomaterials are currently widely used in the human body for various prostheses and orthopedic devices, and they must exhibit negligible dissolution rates in the body and have appropriate mechanical properties for specific uses. The main objective of the study: Realization of coatings of titanium implants, with the help of advanced laser methods, which will increase their life span, prevent metal delamination, the penetration of metal ions into the body and the production of inflammatory effects. Results and discussion: TiN thin films were deposited on Ti substrates, then evaluated from the structural, mechanical and electrochemical properties point of view. Conclusions: Coating titanium implants with TiN thin films is a good method to increase the corrosion resistance and mechanical strength of Ti implants. The presence of films on the surface of Ti considerably diminishes the corrosion of the implants and the release of metal ions in the solution. [ABSTRACT FROM AUTHOR]

Over the years have been introduced and used many deposition techniques to obtain coatings of the biomaterial implants in order to increase their functionality. The latest methods, by which coatings of high quality with a variety of special properties were obtained, are pulsed laser deposition and matrix assisted pulsed laser evaporation, which are based on the fact that a pulsed laser is able to vaporize congruent and instantly any material. First their advantage is that materials with complex composition can be transferred on the substrate without stoichiometry change. In this way is possible to obtain also multistructures and the size of the layers can be controlled with very high precision (less than angstrom). [ABSTRACT FROM AUTHOR]

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In order to improve the biocopatibility of dental implants made of titanium, their surface treatments is studied. The aim of this paper is that, by means of modern methods, to evaluate morphological particularities for implants treated at the surface level with the Pulsed Laser Deposition (PLD) method and with tomographic images of osteointegration. Thus, the deposit of biomaterials on the titanium implants surfaces has been used as material and method of study with the means of Pulsed Laser Deposition (PLD) method and the study of samples with thin layers of biomaterials has been done with the help of electron-scan microscope, QUANTA INSPECT F. Tomographic examination has been done by means of a complex equipment, VERAVIEWEPOCS 3D, Miorita USA, with tridimensional analysis capabilities. The results obtained have showed through SEM examination for thin biofilms of HA, tricalcic phosphate, bioglass, a granulatedm rough surface morphology for all deposites. The deposites for HA and tricalcic phosphate are not uniform, they present rough surfaces with a dimension of 5 μm -10 μm for HA and bioglass and a double dimesion tricalcic phosphate. In conclusion, the surface treatment of titanium implants obtained by increasing the thin layers through PLD has numerous advantages in comparison with other methods; computerized tomograpfy is a technique of complementary evaluation indispensible for the implantologic treatment. [ABSTRACT FROM AUTHOR]