Dental Implant-Related Infections: Current Strategies for Understanding, Preventing and Treating Polymicrobial Biofilms

A special issue of Antibiotics (ISSN 2079-6382).

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 2116

Special Issue Editors


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Dental Research Division, Guarulhos University (UNG), Guarulhos, Sāo Paulo, Brazil
Interests: dental implant; biofilm; microorganisms; antimicrobials; Candida

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Guest Editor
Department of Periodontics and Preventive Dentistry, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
Interests: oral microbiology; Candida albicans; biofilms; dental implants; Titanium

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Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos 07023-070, Brazil
Interests: periodontology and oral implantology; mainly peri-implant diseases; guided bone regeneration; laser; PDT; growth factors; implant surface topographies; digital workflow; RCT
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Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
Interests: implant dentistry; microbiology; coatings; corrosion; tribocorrosion

Special Issue Information

Dear Colleagues,

Implanted devices have proven to be a successful treatment modality in reconstructive surgeries. Nonetheless, implants are prone to microbial adhesion and biofilm accumulation once exposed to the external environment, which can ultimately trigger local inflammation in the surrounding tissues. Polymicrobial biofilm infections are considered the main reason for dental implant failure. Such biofilms are challenging to treat due to their complex microbial composition, tridimensional structure, and implant topography. This may explain the lack of consensus regarding effective treatment strategies for oral-implant-related infections. Notably, our understanding of biofilm formation on oral surfaces cannot be simply transferred to implant surfaces before being tested. Although recent evidence has highlighted some key factors modulating biofilm accumulation on the dental implant surface and the pathogenesis of implant-related infections, as well as risk factors, the transition from a healthy oral microbiome to a disease-associated microbiome on these biomaterials is still not fully understood. Understanding the pathogenesis process of implant-related infections will allow researchers and clinicians to develop effective therapeutic strategies. This may explain why most of the preventive and therapeutic approaches tested experimentally have not been translated into clinical practice, mainly the development of anti-fouling and antimicrobial surfaces.

This Special Issue is focused on the current evidence regarding the pathogenesis of dental implant-related infections and the development of strategies to prevent, control, or treat the disease. We invite the submission of research articles, reviews, communications, and perspectives on dental implant polymicrobial infections.

Dr. João Gabriel S. Souza
Dr. Martinna Bertolini
Prof. Dr. Jamil Awad Shibli
Dr. Valentim A. R. Barão
Guest Editors

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Keywords

  • microbial adhesion and biofilm accumulation on dental implants
  • host-response
  • development of antimicrobial implant surfaces
  • therapeutic strategies
  • antimicrobial effect
  • peri-implant mucositis
  • peri-implantitis

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Published Papers (1 paper)

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Research

11 pages, 2663 KiB  
Article
Antibacterial Activity of Dissolved Silver Fractions Released from Silver-Coated Titanium Dental Implant Abutments: A Study on Streptococcus mutans Biofilm Formation
by Ranj Nadhim Salaie, Pakhshan A. Hassan, Zhala Dara Meran and Shehab Ahmed Hamad
Antibiotics 2023, 12(7), 1097; https://doi.org/10.3390/antibiotics12071097 - 24 Jun 2023
Cited by 5 | Viewed by 1735
Abstract
(1) Background: The aim of this research was to investigate the antibacterial activity of dissolved silver from silver-coated titanium implants against Streptococcus mutans. (2) Methodology: Silver-coated titanium implant discs were immersed in 1.8 mL of brain heart infusion broth (BHIB) and incubated [...] Read more.
(1) Background: The aim of this research was to investigate the antibacterial activity of dissolved silver from silver-coated titanium implants against Streptococcus mutans. (2) Methodology: Silver-coated titanium implant discs were immersed in 1.8 mL of brain heart infusion broth (BHIB) and incubated for 24 h in order to release the silver ions into the broth. The coating quality was confirmed via EDS, and the dissolved silver was measured via inductively coupled plasma mass spectrometry (ICP-MS). The experimental design used unconditioned broth (control) and broth conditioned with silver released from silver-coated titanium implants (n = 6). Regarding the antibacterial activity, isolated Streptococcus mutans was used. A turbidity test and lactate production test were performed to determine the effect of dissolved silver on bacterial growth in a suspension and biofilm formation. (3) Result: The results showed that the coating was successfully applied on the substrate. There was around 0.3 mg/L of silver released into the BHIB, and the turbidity of the control group was significantly higher than the treatment, with measured absorbance values of 1.4 and 0.8, respectively, indicating that the dissolved silver ions from the silver-coated titanium discs exhibited some degree of antibacterial activity by preventing the growth of Streptococcus mutans. However, the results of the antibiofilm activity test did not show any significant difference between the groups. (4) Conclusion: The dissolved silver from silver-coated titanium implants has an antibacterial activity but not a significant antimicrobial activity, indicating that the dissolved silver from silver-coated titanium abutments can significantly reduce the incidence of peri-implant mucositis. Full article
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