Romanian Journal of Oral Rehabilitation (Jan 2010)
Aspects Of The Bioactive Implants Involved In Periointegration Concept
Abstract
Introduction. The change of the implants’ surface becomes a sine-qua-non condition for the realisation of the perio-integration concept, essential aspect for the viability of the implant-prosthetic therapeutic solutions. Methods: The experiments were conducted on dental implants manufactured from titanium Ti6Al4V and Periotype implants from the Kavo Company, with a micro RBM (resorbable Blasting Media) surface. The process of total bio-mimic covering made use of two solutions which can deposit calcium phosphate from watery solution, at the body’s temperature the synthetic biological fluid – FBS and the oversaturated solution in ions of SCS-calcium. Results: From the study of the microscopic structures obtained and researched it resulted that the micro bio-mimic ceramic layer is continuous, porous and adherent to the metal surface.Through AFM electronic microscope studies it was highlighted, within 3D coordinates, the relief of the ceramic layer deposited. This phenomenon confirms itself also through in vivo experiments conducted on animals.The determining of the chemical nature for the ceramic layer was conducted through a difractometric study with X-XRD ray. The evolution in time of the reconstruction process of the bone tissue and of bone integration was measured through micro-X-raying of the implanted areas at a 30-days interval; [3]In the case of the experiments done on animals, these determinations. Discussion & Conclusions: Following the specific operating times specific to such type of therapeutic manual labour, after the finalization of the implant’s application it was radio-physiologically ascertain at four months after the very good intervention of the implant, that the bone structure presented an evident condensation, a fact which pleads in favour of the correct integration in full harmony with the sustaining structures. The bio-active apatite’s layer led to considerable results regarding the surface’s state. It is remarkable the highly degree of bio-compatibility, facilitating a very good osseous-integration of implants with the surface’s state thus modified.
