Introdução O hábito de fumar é um fator de risco importante na prevalência, progressão e gravidade das doenças periodontais e parece suprimir a resposta inflamatória marginal no periodonto. Objetivo Correlacionar Índice de Placa visível (IPV) e Índice de Sangramento Gengival (ISG) em fumantes e indivíduos que nunca fumaram, bem como correlacionar ISG e o sangramento à sondagem (SS) nesses dois grupos. Material e método Foram utilizados dados de baseline de um estudo quasi-experimental, no qual 11 pacientes fumantes e 14 indivíduos que nunca fumaram foram submetidos a exames clínicos periodontais no período de setembro de 2010 e outubro de 2011. Resultado A correlação entre IPV e ISG foi positiva para ambos os grupos, sendo forte e estatisticamente significante nos indivíduos que nunca fumaram e moderada nos fumantes. Com relação ao ISG e SS houve moderada correlação para os fumantes e fraca para os indivíduos que nunca fumaram. Conclusão Fumantes apresentam uma correlação entre IPV e ISG de menor força em relação aos indivíduos que nunca fumaram resultando em um sangramento gengival marginal menos pronunciado.

Introduction Smoking is a risk factor for prevalence, severity and progression of periodontal disease and appears to suppress marginal periodontium inflammatory response. Purpose To correlate Visible Plaque Index (VPI) and Gingival Bleeding Index (GBI) in smokers and never-smokers, as well as GBI and bleeding on probing (BOP ) in these groups. Material and method We used baseline data of one quasi-experimental study in which 11 smokers and 14 subjects who never smoked were submitted to clinical periodontal examinations between September 2010 and October 2011. Result The correlation between VPI and GBI was positive for both groups, it was strong and statistically significant in subjects who had never smoked and moderate in smokers. Regarding GBI and BOP correlations were moderate for smokers and weaker for individuals who had never smoked. Conclusion Smokers have lower strength correlation between VPI and GBI compared to individuals who had never smoked resulting in a less pronounced marginal gingival bleeding.

The objective of this study was to evaluate the effect of smoking on response to nonsurgical periodontal therapy using the primary outcome measure of bleeding on probing (BoP). An periodontist performed periodontal therapy on 11 smokers and 14 never smokers with periodontitis. Two examiners assessed visible plaque index, gingival bleeding index, probing pocket depth (PPD), BoP, suppuration on probing and clinical attachment level (CAL), at baseline and three months after therapy. BoP was categorized as 0 (absent), 1 (small bleeding point) and 2 (blood flow from the sulcus). Total BoP value was obtained by summing values of 1 and 2. All subjects had significant reductions in mean PPD and percentages of sites with BoP, with no difference between the groups. Only never smokers presented statistically significant CAL gain. BoP was significantly and consistently reduced at sites with initial PPDs of 1–3 mm and 4–6 mm in both groups. At sites with deep PPD ( ≥ 7mm), never smokers showed a greater mean reduction in the number of sites with BoP than did smokers (p < 0.05). Never smokers had significantly greater reduction in BoP 2 than smokers, at sites with moderate and deep baseline PPDs. The first group had a significant increase of BoP 1, at sites with initial PPDs of 4-6 mm. Thus, periodontal therapy reduced BoP in both groups. However, smoking could negatively affect the BoP reduction at deeper sites after nonsurgical periodontal therapy.