O impacto da presença/ausência dental na colonização de periodontopatógenos na cavidade bucal / The impact of the presence/absence of the teeth in the oral cavity colonization by periodontal pathogens

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

06/05/2009

RESUMO

Aim: The aim of this study was evaluate the impact of teeths presence/absence according to the presence/absence of periodontal pathogens in newborns, children and adults/elderly. Methods: This cross-sectional estudy included 43 newborns (2.84 1.60 months), forty children with mixed dentition (9.33 1.99 years) thirty dentate adults/elderly (61.77.05 years) and 31 edentulous adults/elderly (60.068.67 years). The presence of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia, Campylobacter rectus, Eikenella corrodens, Treponema denticola and Micromonas micros of extra-sulcus samples (dorsum of the tongue and cheek mucosa) and intra-sulcus samples (gingival sulcus/ periodontal pocket) were evaluated using polymerase chain reaction. Bacterial frequences were analized by Chi-square test, and the Odds Ratio for the presence of periodontal pathogens colonization according to the presence of the teeth in dentate population, was also calculated. Results: C. rectus was the more prevalent bacteria in all studied age-groups. P. gingivalis was not find in newborns and children, while P. intermedia was detected except in newborns. Edentulous adults/elderly, differently from newborns, showed P. gingivalis in extra-sulcus samples. When the extra-sulcus samples (dorsum of the tongue and cheek mucosa) were analized together, childrens group showed higher prevalences than newborns, for all studied pathogens. Both adults/elderly groups presented all bacteria, with statistical difference for P. gingivalis, P. intermedia, T. forsythia, T. denticola and M. micros in dentate group (P<0.05). Conclusions: In general, periodontal pathogens were detected in dentate and edentulous subjects, irrespective of the age. Despite dentate groups showed higher bacterial prevalences, the presence/absence of the teeth did not represent a risk for pathogens occurrence. The results also sugested that more professional attention must be taken to edentulous subjects for initial colonization of primary and mixed dentition and colonization ralated to subsequent oral implants.

ASSUNTO(S)

odontologia prevalência bactérias grupos etários prevalence bacteria age-groups

ACESSO AO ARTIGO

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