Effect Of Polymicrobial Peri-Implant Plaque On The Morphological Degradation And Titanium Ion Leaching Of The Adin Swell Dental Implant

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

doi:10.69980/redvet.v25i1.2266

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

DOI: https://doi.org/10.69980/redvet.v25i1.2266

Keywords: .......

Abstract

Peri-implantitis, a biofilm-mediated disease, is a major cause of late implant failure. This in vitro study investigated the degradation of titanium dental implants (Adin Swell, internal hex design) 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 α-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±0.03µm) and the formation of distinct, species-specific defects such as pits, fissures, and crater-like deformities. Cracks were predominantly observed on the abutment (60.0%). Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) confirmed the release of titanium (Ti) ions into the broth, ranging from 32 ppm to 50 ppm. These findings demonstrate that polymicrobial plaque rapidly induces biocorrosion and morphological damage to the implant surface, with potential clinical implications for chronic inflammation and material integrity.

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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