Effect Of Polymicrobial Peri-Implant Plaque On The Morphological Degradation And Titanium Ion Leaching Of The Zimmer Biomet Osseotite Implant

Dr. Ajrish George. S; Dr. N.P. Muralidharan, Phd; Dr. Thiyaneswaran N, Phd

doi:10.69980/redvet.v25i1S.2268

Dr. Ajrish George. S
Dr. N.P. Muralidharan, Phd
Dr. Thiyaneswaran N, Phd

DOI: https://doi.org/10.69980/redvet.v25i1S.2268

Keywords: .......

Abstract

Peri-implantitis, a biofilm-mediated disease, is a major cause of late implant failure. This in vitro study investigated the degradation of a high-roughness titanium dental implant (Zimmer Biomet Osseotite, dual-acid etched surface) exposed to patient-derived polymicrobial plaque. Ten sterile implants were incubated individually with plaque samples collected from patients (n=10) diagnosed with mild/moderate peri-implantitis for 30 days. Microbial analysis identified six predominant species, with alpha-Haemolytic Streptococcus (40%) being the most prevalent. All tested species (100%) showed Sulphur-reducing and Iron-oxidizing activities, indicative of high corrosive potential. Scanning Electron Microscopy (SEM) revealed severe surface degradation, including a statistically significant increase in thread diameter (1.3 +/- 0.04 um) and extensive formation of interconnected pits and fissures. Cracks were predominantly observed on the abutment (70.0%). Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) confirmed the release of titanium (Ti) ions into the broth, ranging from 45 ppm to 65 ppm. These findings demonstrate the heightened vulnerability of the highly-roughened DAE surface to aggressive, biofilm-induced biocorrosion.

Author Biographies

Dr. Ajrish George. S

MS Implantology, Department of Implantology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai

Dr. N.P. Muralidharan, Phd

Professor, Department of Microbiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai

Dr. Thiyaneswaran N, Phd

Professor and Head, Department of Implantology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai.

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