Clinical evaluation of periodontal pathogen levels by real-time polymerase chain reaction in peri-implantitis patients.
Int J Implant Dent
; 7(1): 105, 2021 10 06.
Article
em En
| MEDLINE
| ID: mdl-34613503
ABSTRACT
OBJECTIVE:
The mechanisms underlying the onset and progression of peri-implantitis are similar to those of periodontitis, and the causative bacteria are believed to similar. Previous studies support an association between peri-implantitis and periodontal pathogen. Thus, we investigated the bacterial flora of peri-implantitis patients in comparison to those of healthy implant and periodontitis patients. MATERIALS ANDMETHODS:
In total, 70 patients visiting Tokyo Dental College Chiba Hospital were divided into four groups healthy, periodontitis, healthy implant, and peri-implantitis. For each group, the following five periodontal pathogens were detected using real-time polymerase chain reaction Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, Tannerella forsythia, Treponema denticola, and Prevotella intermedia.RESULTS:
The average copy number of total bacteria was significantly higher in the periodontitis group than in the other groups. P. gingivalis was detected in the periodontitis and peri-implantitis groups at levels as high as 18.92% and 12.29%, respectively, and P. intermedia was found in the peri-implantitis group at a rate of 2.06%. Nevertheless, periodontal pathogens were generally detected at lower levels in the peri-implantitis group than in the periodontitis group.CONCLUSION:
We found lower bacterial counts in the peri-implantitis group relative to the periodontitis group. Our results suggest that the peri-implant tissue is less resistant to bacteria, so even a small number of bacteria can be a risk factor for peri-implantitis and the causative agent of peri-implantitis can be bacteria other than periodontal pathogen.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Peri-Implantite
Tipo de estudo:
Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
Int J Implant Dent
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Japão