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  1. Article ; Online: Retraction Note: Peri-implantitis-associated methanogens: a preliminary report.

    Belkacemi, Souad / Mazel, Anthony / Tardivo, Delphine / Tavitian, Patrick / Stephan, Grégory / Bianca, Giancarlo / Terrer, Elodie / Drancourt, Michel / Aboudharam, Gérard

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 1355

    Language English
    Publishing date 2024-01-16
    Publishing country England
    Document type Retraction of Publication
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-51888-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Peri-implantitis risk factors: A prospective evaluation.

    Mazel, Anthony / Belkacemi, Souad / Tavitian, Patrick / Stéphan, Grégory / Tardivo, Delphine / Catherine, Jean Hugues / Aboudharam, Gérard

    Journal of investigative and clinical dentistry

    2019  Volume 10, Issue 2, Page(s) e12398

    Abstract: Aim: The aim of the present study was to create a tool to evaluate the risk of peri-implantitis according its severity.: Methods: After ethics committee approval, 43 patients provided signed consent and were included prospectively. Forty-five ... ...

    Abstract Aim: The aim of the present study was to create a tool to evaluate the risk of peri-implantitis according its severity.
    Methods: After ethics committee approval, 43 patients provided signed consent and were included prospectively. Forty-five observations were recorded. The following criteria were recorded: number of implant faces showing bleeding and/or suppuration, pocket depth on at least two faces of the implant, bone loss as a function of the length of the implant evaluated on X-rays, number of implant faces with bacterial plaque, the parameters required for determination of excess cement (screwed or sealed prosthesis, burying of sealed prostheses), periodontal status, glycemia, and annual consumption of tobacco. Each of these parameters was plotted on a chart using Microsoft Excel.
    Results: Seventeen of 45 (37.8%) cases were identified as having high peri-implantitis risk, two of 45 (4.4%) had low risk, and 11 of 45 (24.4%) had moderate risk; 33.3% patients did not have peri-implantitis and were considered at very low risk.
    Conclusion: The observed results applied to the evaluation model are an effective diagnostic tool in assessing the risk of peri-implantitis. The tool takes into account parameters, which have not been taken into account until now. The information is automatically processed and allows early management of peri-implantitis.
    MeSH term(s) Alveolar Bone Loss ; Dental Implants ; Humans ; Peri-Implantitis ; Periodontal Index ; Prospective Studies ; Risk Factors
    Chemical Substances Dental Implants
    Language English
    Publishing date 2019-02-07
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2625845-6
    ISSN 2041-1626 ; 2041-1618
    ISSN (online) 2041-1626
    ISSN 2041-1618
    DOI 10.1111/jicd.12398
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Peri-implantitis-associated methanogens: a preliminary report.

    Belkacemi, Souad / Mazel, Anthony / Tardivo, Delphine / Tavitian, Patrick / Stephan, Grégory / Bianca, Giancarlo / Terrer, Elodie / Drancourt, Michel / Aboudharam, Gérard

    publication RETRACTED

    Scientific reports

    2018  Volume 8, Issue 1, Page(s) 9447

    Abstract: Methanogens have already been described in periodontitis but not in peri-implantitis. Thirty peri-implantitis samples and 28 control samples were collected in 28 consenting peri-implantitis patients. PCR-sequencing of the 16S rRNA gene was used as a ... ...

    Abstract Methanogens have already been described in periodontitis but not in peri-implantitis. Thirty peri-implantitis samples and 28 control samples were collected in 28 consenting peri-implantitis patients. PCR-sequencing of the 16S rRNA gene was used as a broad-spectrum screening method and results were further confirmed by real-time quantitative PCR targeting the mcrA genes. Results showed a methanogen community dominated by Methanobrevibacter oralis in 31/58 (51%) samples including 16/28 (57%) control samples and 15/30 (50%) peri-implantitis samples. Methanobrevibacter massiliense was detected in 5/58 (8.6%) samples including 3/28 (1%) control samples and 2/30 (6.7%) peri-implantitis samples. The prevalence of M. oralis or M. massiliense did not significantly differ in peri-implantitis and control samples (exact Fisher test, P = 0.61 and P = 0.67, respectively). Further ponderation of the methanogen load by the real-time quantitative PCR for actin human gene again indicated non-significant difference (Wilcoxon-Mann-Whitney test, P = 0.48 and P = 0.40, respectively). These data show that the prevalence of methanogens does not differ in peri-implantitis lesions and healthy sites, when individuals are their own control. These data do not allow assigning a specific pathogenic role to methanogens in peri-implantitis; methanogens rather are part of the commensal and normal flora of the oral cavity.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Male ; Methanobrevibacter/genetics ; Methanobrevibacter/isolation & purification ; Methanobrevibacter/pathogenicity ; Microbiota ; Middle Aged ; Peri-Implantitis/microbiology
    Language English
    Publishing date 2018-06-21
    Publishing country England
    Document type Journal Article ; Retracted Publication
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-018-27862-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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