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Microbial changes after full-mouth tooth extraction, followed by 2-stage implant placement

Identifieur interne : 001C81 ( Main/Exploration ); précédent : 001C80; suivant : 001C82

Microbial changes after full-mouth tooth extraction, followed by 2-stage implant placement

Auteurs : Marc Quirynen [Belgique] ; Nele Van Assche [Belgique]

Source :

Journal of clinical periodontology [ 0303-6979 ] ; 2011.

RBID : Pascal:11-0265078

Descripteurs français

Pascal (Inist)
- Cavité buccale, Denture, Dent, Extraction, Implant, Biofilm, Colonisation, Dentisterie.

English descriptors

KwdEn :
- Biofilm, Colonization, Dentistry, Extraction, Implant, Oral cavity, Teeth, Tooth.

Abstract

Background: Recent studies showed that qPCR could detect bacteria related to periodontitis and peri-implantitis in a low concentration after full-mouth tooth extraction. This study monitored the microbiota from tooth extraction, over 9 months of full edentulism, up to 1 year after abutment connection. Material and methods: Ten patients with severe periodontitis were recruited. Six months after tooth extraction, implants were inserted. Three to 6 months later, they were connected to abutments. Plaque samples were collected from the tongue dorsum, saliva, and subgingival area (teeth/implants) before extraction up to 1 year after abutment connection, and analysed via culture, qPCR, and checkerboard technology. Results: A reduction in the total amount of aerobic and anaerobic CFU/ml was observed. The concentration of Porphyromonas gingivalis and Tannerella forsythia (qPCR and checkerboard) in the saliva and, to a lower extent, on the tongue dorsum reduced. For Prevotella intermedia, changes were negligible and no changes could be detected for Aggregatibacter actinomycetemcomitans. The pristine subgingival niches were quickly colonized by key pathogens. Their final concentration remained low, while the detection frequencies remained very high over time. Conclusion: Complete edentulation results in a significant reduction of bacteria related to periodontitis and peri-implantitis, with the exception of A. actinomycetemcomitans, which might indicate that key pathogens can survive without pockets.

Url:

https://hal.archives-ouvertes.fr/hal-00631699

Affiliations:

Belgique

Le document en format XML

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<front><div type="abstract" xml:lang="en">Background: Recent studies showed that qPCR could detect bacteria related to periodontitis and peri-implantitis in a low concentration after full-mouth tooth extraction. This study monitored the microbiota from tooth extraction, over 9 months of full edentulism, up to 1 year after abutment connection. Material and methods: Ten patients with severe periodontitis were recruited. Six months after tooth extraction, implants were inserted. Three to 6 months later, they were connected to abutments. Plaque samples were collected from the tongue dorsum, saliva, and subgingival area (teeth/implants) before extraction up to 1 year after abutment connection, and analysed via culture, qPCR, and checkerboard technology. Results: A reduction in the total amount of aerobic and anaerobic CFU/ml was observed. The concentration of Porphyromonas gingivalis and Tannerella forsythia (qPCR and checkerboard) in the saliva and, to a lower extent, on the tongue dorsum reduced. For Prevotella intermedia, changes were negligible and no changes could be detected for Aggregatibacter actinomycetemcomitans. The pristine subgingival niches were quickly colonized by key pathogens. Their final concentration remained low, while the detection frequencies remained very high over time. Conclusion: Complete edentulation results in a significant reduction of bacteria related to periodontitis and peri-implantitis, with the exception of A. actinomycetemcomitans, which might indicate that key pathogens can survive without pockets.</div>
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Microbial changes after full-mouth tooth extraction, followed by 2-stage implant placement

Microbial changes after full-mouth tooth extraction, followed by 2-stage implant placement

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

	Serveur d'exploration sur le patient édenté (maquette)
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