Risk indicators for aggressive periodontitis in an untreated isolated young population from Brazil

This study aimed to assess the prevalence of aggressive periodontitis (AgP), and to investigate the association between demographic, socioeconomic and behavioral risk indicators with AgP in an untreated and isolated young population in Southeastern Brazil. For this cross-sectional survey, 134 subjects aged 12-29 years were selected by a census. Of those eligible, 101 subjects received a full-mouth clinical examination, and were interviewed using a structured written questionnaire. Cases were defined as individuals with 4 or more teeth with attachment loss > 4 mm or > 5 mm in the age groups 12-19 and 20-29, respectively. Overall, 9.9 percent of the subjects presented AgP (10.3 percent of the 12-19-year-olds and 9.7 percent of the 20-29-year-olds). The only risk indicator significantly associated with AgP in this isolated population was a high proportion of sites (> 30 percent) presenting supragingival calculus [OR = 23.2]. Having experienced an urgency dental treatment was a protective factor for AgP [OR = 0.1]. The authors concluded that this isolated and untreated population from Brazil presented a high prevalence of AgP. Local plaque-retaining factors played a major role in the prevalence of AgP in this isolated population, and should be included in further studies evaluating this destructive periodontal disease form.

Superinfecting microorganisms in patients under treatment with cyclosporin-A and its correlation to gingival overgrowth

A proposta deste trabalho foi identificar a presença de microrganismos superinfectantes (bastonetes entéricos Gram-negativos e Candida spp.) em pacientes transplantados cardíacos e correlacionar com a presença de crescimento gengival. Foram examinados 30 pacientes (10 mulheres e 20 homens - média 45 anos). Todos os pacientes estavam sob terapia com ciclosporina-A (CsA) sem ter sido submetidos a antibioticoterapia e nem a tratamento periodontal prévio, por pelo menos três meses do início do estudo. O paciente deveria ter, no mínimo, seis dentes. Foram registrados os índices de placa bacteriana (IP), índice gengival (IG), valores de profundidade clínica de sondagem (PCS) e nível clínico de inserçäo (NCI). Análise microbiológica foi realizada a partir de amostras coletadas do sulcobolsa (sb) gengival e da saliva estimulada (se). Os pacientes foram divididos em dois grupos: com crescimento gengival (CCG) e sem crescimento gengival (SCG). Após análise estatística (Teste do Qui-quadrado; teste t de Student; Prova exata de Fisher; p0,05), concluiu-se que näo houve diferença entre os dois grupos de pacientes com relaçäo ao sexo dos pacientes, dosagem de CsA, tempo decorrido após o transplante, IP, IG, PCS e NCI. O exame microbiológico das amostras coletadas mostrou a ausência de bastonetes entéricos Gram-negativos. Foi possível a detecçäo de Candida spp. (sb-30 por cento e se-30 por cento), na amostra de saliva estimulada e a presença deste microrganismo estava associada aos pacientes SCG