Multifaceted roles of environmental factors toward dental implant performance: Observations from clinical retrievals and in vitro testing

Dental Materials : Official Publication of the Academy of Dental Materials
Sathyanarayanan SridharDanieli C Rodrigues

Abstract

Oral bacteria and periodontal pathogen have been predominantly linked with early- and late- stage failures of titanium (Ti) dental implants (DI) respectively. This study is based on the hypothesis that bacterial colonization can damage the surface oxide (TiO2) layer. Early-failed DI were compared with DI post-in vitro immersion in early colonizing oral bacteria; late failed DI were weighed against DI immersed in late colonizing anaerobic pathogens. Retrieval analysis: Seven early- stage failed implants with five of them connected to healing abutments (HAs), and ten late- stage failed retrievals were subjected to surface analysis. Bacteria immersion test: Three dental implants each were immersed in polycultures containing (i) early colonizers (Streptococcus mutans, S. salivarius, S. sanguinis) (ii) late colonizers (Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans). The implants were immersed for 30 days to simulate the healing period and bacterial biofilm adhesion. Optical microscope, x-ray photoelectron spectroscopy (XPS), and electrochemical test were performed to analyze the surface- morphology, chemistry, and potential respectively. Early colonizers inflicted surface morphological damage (discoloration and pit...Continue Reading

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Citations

Nov 26, 2019·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Juergen TaxisTobias Moest
Feb 25, 2021·ACS Biomaterials Science & Engineering·Sutton E WheelisDanieli C Rodrigues
Jun 10, 2019·ACS Biomaterials Science & Engineering·Danyal A SiddiquiDanieli C Rodrigues

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