Fogászati implantátumok alapanyagának és felületmódosítási eljárásainak hatása a csontintegrációra
Körmöczi Kinga Renáta
Clinical Medicine
Dr. Reusz György
SE Arc-, Állcsont-, Szájsebészeti és Fogászati Klinika előadóterme
2022-04-25 14:00:00
Dental Research
Dr. Varga Gábor
Dr. Joób Fancsaly Árpád
Dr. Borbély Judit egyetemi docens
Dr. Vajdovich István c. egyetemi tanár
Dr. Dőri Ferenc egyetemi tanár
Dr. Kispélyi Ida Barbara egyetemi docens
Dr. Borsos Gabriella PhD
Summary Humanity's need for implant dentures has been growing steadily in recent decades. With the increase in demand, the use is also constantly increasing, the tendency is to provide the missing teeth with implanted prostheses on implants. Basic research in dental implantology examining material and surface properties is still relevant today. The aim of the research is to shorten the recovery time and achieve the longest possible success. With the development of materials science, an ultra-fine-grained version of medical titanium has been used for decades, thereby improving the mechanical properties of the material while retaining its excellent biocompatibility. One of the aims of this dissertation is to investigate whether ultra-fine-grained material may be suitable for the manufacture of dental implants. The results of the mechanical tests show that the ultra-fine-grained Grade 2 pure titanium raw material has the same or better properties in all mechanical properties compared to the conventional granular structure of pure titanium and titanium alloy. However, by applying an acid etching surface treatment to the material, the surface roughness and wetting tendency of the material do not differ from the long-established conventional granular titanium structure. Favorable mechanical properties may make the UFSZ material suitable for making normal and narrow implants, prosthetic heads, or screws securing the abutment. Based on the described results, it is also recommended to study the ultra-fine particulate matter in vivo. Another aim of the dissertation is to investigate the early load-bearing capacity of implants with different surfaces. In the study, we compared the varying stability values during the healing of nano-coated implants with hydroxyapatite, which is also a novelty. The results show that both surface modification procedures have an equally positive effect on bone integration processes and can be safely loaded as early as six weeks after implant placement.
