engleski

Sealing efficacy of the original and third- partycustom–Made abutments–Microbiological in vitropilot study

Background and Aim: Implant-abutment connection (IAC) is a key fac-tor for long-term success and stability of implant–borne prostheticrestoration and its surrounding tissues. Misfit between prosthodonticabutment and implant at the IAC leads to mechanical and biologicalcomplications. Two kinds of custom-made abutments are currentlyavailable on the market: original and third-party abutments. The aimof this pilot study is to indirectly check the internal fit (gap) at theimplant–abutment interface depending on the abutment fabricationmethod based on microbial leakage in static conditions and the needfor the use of the gap sealing material.Methods: 80 dental implants and respective abutments were used inthis study. Two groups of 40 implants were formed relative to thetype of abutment (original and third party). Group A consisted of20 GC Aadva Standard implants (GCTech.Europe GmbH, Breckerfeld, Germany) and 20 Zimmer Tapered Screw - Vent implants (ZimmerBiomet Dental, Palm Beach Gardens, Florida, USA) connected torespective original factory–made prosthodontic abutments. Group Bconsisted of same number and type of implants, but connected torespective third party custom–made abutments. In each of thegroups, two test subgroups of 10 implants in each were formed. TheGapSeal (Hager and Werken, Duisburg, Germany) was applied in testsubgroups. The implant–abutment assemblies were contaminatedwith a solution containingStaphylococcus aureusandCandida albicansfor 14 days under an aerobic conditions.Results: This study showed that there was no statistically significantdifference (p> 0.05) regarding microleakage between original andthird-party custom–made abutments regardless of the use of sealingmaterial.Conclusions: The abutment fabrication method has no significantinfluence on sealing efficacy regarding the bacterial and fungal leak-age in static conditions

sealing ; gap ; microbiology ; dental implants

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