Prevalence of periodontal pathogens in Brazilians with aggressive or chronic periodontitis

Objectives: Previous studies suggest differences between geographically and racially distinct populations in the prevalence of periodontopathic bacteria as well as greater periodontal destruction associated with infection by highly leucotoxic Actinobacillus actinomycetemcomitans. The present study e...

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Veröffentlicht in:Journal of clinical periodontology Jg. 32; H. 8; S. 860 - 866
Hauptverfasser: Cortelli, Jose R., Cortelli, Sheila Cavalca, Jordan, Shawn, Haraszthy, V. I., Zambon, J. J.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Oxford, UK Munksgaard International Publishers 01.08.2005
Schlagworte:
Acute Disease
Adolescent
Adult
Aged
Aggregatibacter actinomycetemcomitans - chemistry
Aggregatibacter actinomycetemcomitans - isolation & purification
bacterial pathogens
Bacteroides - isolation & purification
Brazil - epidemiology
Campylobacter rectus - isolation & purification
Chronic Disease
Colony Count, Microbial
Cross-Sectional Studies
Dental Plaque - microbiology
DNA, Bacterial - analysis
Exotoxins - analysis
Female
Humans
leucotoxin
Logistic Models
Male
Middle Aged
periodontal disease
periodontitis
Periodontitis - epidemiology
Periodontitis - microbiology
Porphyromonas gingivalis - isolation & purification
Prevalence
Prevotella intermedia - isolation & purification
Brazil
ISSN:0303-6979, 1600-051X
Online-Zugang:Volltext
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Zusammenfassung:Objectives: Previous studies suggest differences between geographically and racially distinct populations in the prevalence of periodontopathic bacteria as well as greater periodontal destruction associated with infection by highly leucotoxic Actinobacillus actinomycetemcomitans. The present study examined these hypotheses in Brazilians with aggressive or chronic periodontitis. Materials and Methods: Clinical, radiographical, and microbiological assessments were performed on 25 aggressive periodontitis and 178 chronic periodontitis patients including 71 males and 132 females, 15–69 years of age. Results: The prevalence of Porphyromonas gingivalis was similar to that of other South American populations. The prevalence of A. actinomycetemcomitans and its highly leucotoxic subgroup was higher in Brazilians. Highly leucotoxic A. actinomycetemcomitans was more prevalent in aggressive periodontitis (χ2=27.83) and positively associated with deep pockets (>6 mm, χ2=18.26) and young age (<29 years, χ2=18.68). Greater mean attachment loss was found in subjects with highly leucotoxic A. actinomycetemcomitans than in subjects with minimally leucotoxic (p=0.0029) or subjects not infected (p=0.0001). Conclusion: These data support the hypothesis of differences between populations in the prevalence of periodontopathic bacteria and of greater attachment loss in sites infected with highly leucotoxic A. actinomycetemcomitans. Detection of highly leucotoxic A. actinomycetemcomitans in children and adolescents may be a useful marker for aggressive periodontitis.
Bibliographie:ark:/67375/WNG-831DT1WR-5
istex:69077E1E184BDF25D58B84A4270D23B79D09F219
ArticleID:JCPE777
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0303-6979
1600-051X
DOI:10.1111/j.1600-051X.2005.00777.x