Microbiological Factors of Peri-Implantitis: Characteristics and Significance

Saito, Hanae; Kensara, Anmar; Masri, Radi

doi:10.1007/978-3-030-39185-0_4

Risk Factors for Peri-Implant Diseases 2020

DOI: 10.1007/978-3-030-39185-0_4

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Microbiological Factors of Peri-Implantitis: Characteristics and Significance

Hanae Saito

Anmar Kensara

Radi Masri

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2023

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“…3 The etiology of peri-implantitis is controversial and incompletely understood. 4,5 Peri-implantitis is partly caused by biofilms around, or within dental implants, and is modulated by the host response to these biofilms. 6 This biofilm comprises obligate anaerobe Gram-negative bacteria (OAGNB) such as T. forsythia, F. nucleatum, T. denticola, P. intermedia, P. gingivalis, and asaccharolytic anaerobic Gram-positive rods (AAGPRs) such as Eubacterium, and other Grampositive species.…”

mentioning

confidence: 99%

Microbiological profile of peri‐implantitis: Analyses of peri‐implant microbiome

Kensara,

Saito,

Mongodin

et al. 2023

Journal of Prosthodontics

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PurposeTo characterize the microbiome composition in peri‐implant pocket of peri‐implantitis and peri‐implant sulcus controls using 16S rRNA gene sequencing.Materials and MethodsIn this controlled clinical cross‐sectional study, 23 subjects with control implants (n = 14) and diseased implants (peri‐implantitis, n = 21) were included. The peri‐implant pocket/sulcus was sampled and used to extract DNA and amplify the 16S rRNA gene using universal primers targeting the V3‐V4 regions. The resulting 16S PCR amplicons were sequenced on Illumina MiSeq, and the sequences were processed using DADA2 and the Human Oral Microbiome Database (HOMD) as references. Alpha and Beta diversity, as well as core microbiome and differential abundance analyses, were performed using the MicrobiomeAnalyst workflow.ResultsThere were no significant differences in microbial diversity between control implants and implants with peri‐implantitis (Shannon P = 0.82). Overall bacterial community structure assessed through beta diversity analysis was also not significantly different between the two groups (P = 0.18). However, high levels of Gram‐negative bacteria were detected in peri‐implant pockets compared to the control sulcus. Abundant species in peri‐implantitis were C. leadbetteri, T maltophilum, Peptostreptococcus, Neisseria, P.gingivalis, and P, endodontali, L. lactis and F alocis (P < 0.05). Gram‐positive bacteria such as S. Salivaris, P. melaninogenica, L. wadei, and Actinomyces spp serve were more abundant in peri‐implant control sulcus.ConclusionsPeri‐implant sulcus in control implants harbors predominantly Gram‐positive bacteria, whereas pockets of implants with peri‐implantitis harbor predominantly Gram‐negative bacteria. This article is protected by copyright. All rights reserved

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mentioning

confidence: 99%

Microbiological profile of peri‐implantitis: Analyses of peri‐implant microbiome

Kensara,

Saito,

Mongodin

et al. 2023

Journal of Prosthodontics

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Microbiological Factors of Peri-Implantitis: Characteristics and Significance

Cited by 1 publication

References 74 publications

Microbiological profile of peri‐implantitis: Analyses of peri‐implant microbiome

Microbiological profile of peri‐implantitis: Analyses of peri‐implant microbiome

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