The effect of smoking on gingival crevicular fluid volume during the treatment of gingivitis.

Smoking is detrimental to periodontal tissues, and periodontal destruction is greater among smokers. Paradoxically, smokers seem to have less gingival bleeding than never-smokers with comparable supragingival plaque. There is scarce information about the impact of smoking on gingival crevicular fluid (GCF) volume. This single-arm study clinical trial assessed the effect of smoking on GCF volume during the treatment of gingivitis. The sample included 24 never-smokers (47.3 +/-6.7years old, 41.7% males) and 21 smokers (45.8 +/- 5.1 years old; 55% males; 19.6 +/- 11.8 cigarettes/day; 24.1 +/- 8.7 years of smoking) with gingivitis and chronic periodontitis. After baseline supragingival scaling, patients received oral hygiene instructions weekly for 180 days. Particqants were examined at baseline, 30, 90 and 180 days, and gingival bleeding index (GBI), bleeding on prob-ing (BOP), periodontal probing depth (PPD) and GCF volume were recorded. Statistical analysis was performed using linear models (Wald test, p<0.05%). Smokers had significantly smaller GCF volumes than never-smokers. This finding was not attributed to GBI, BOP or PPD. Higher volumes of GCF were significantly associated with deeper pockets. GCF was significantly reduced throughout the study for both smokers and never-smokers, and the largest reductions were seen at 30 days. Smoking affected the GCF crevicular fluid volume independently of the presence of gingival bleeding, BOP and PPD. Smoking status and PPD should be taken into account when GCG volume and components are under investigation.

The effect of smoking on gingival crevicular fluid volume during the treatment of gingivitis / Efeito do tabagismo sobre o volume de fluido crevicular gingival durante o tratamento da gengivite

Smoking is detrimental to periodontal tissues, and periodontal destruction is greater among smokers. Paradoxically, smokers seem to have less gingival bleeding than never-smokers with comparable supragingival plaque. There is scarce information about the impactof smoking on gingival crevicular fluid (GCF) volume. This singlearm study clinical trial assessed the effect of smoking on GCF volume during the treatment of gingivitis. The sample included 24 never-smokers (47.3 ± 6.7 years old, 41.7% males) and 21 smokers (45.8 ± 5.1 years old; 55% males; 19.6 ± 11.8 cigarettes/day; 24.1 ± 8.7 years of smoking) with gingivitis and chronic periodontitis. After baselinesupragingival scaling, patients received oral hygiene instructions weekly for 180 days. Participants were examined at baseline, 30, 90 and 180 days, and gingival bleeding index (GBI), bleeding on probing (BOP), periodontal probing depth (PPD) and GCF volume wererecorded. Statistical analysis was performed using linear models (Wald test, p<0.05%). Smokers had significantly smaller GCF volumes than never-smokers. This finding was not attributed to GBI, BOP or PPD. Higher volumes of GCF were significantly associated with deeper pockets. GCF was significantly reduced throughout thestudy for both smokers and never-smokers, and the largest reductionswere seen at 30 days. Smoking affected the GCF crevicular fluid volumeindependently of the presence of gingival bleeding, BOP and PPD. Smoking status and PPD should be taken into account when GCG volume and components are under investigation.(AU)

O tabagismo é capaz de alterar a resposta periodontal determinando maior expressÒo de destruiþÒo periodontal em pacientes fumantes. Paradoxalmente, estes pacientes apresentam menos sangramento gengival frente a uma quantidade semelhante de biofilme dental, quando comparados a pacientes que nuncafumaram. Por outro lado, existe pouca informaþÒo sobre o impacto do tabagismo sobre o volume de fluido crevicular gengival (FCG). O presente ensaio clínico de braþo único teve comoobjetivo avaliar o efeito do tabagismo sobre o volume de FCG durante o tratamento da gengivite. A amostra foi composta por 24 pacientes que nunca fumaram (47.3 ± 6.7 anos, 41.7% homens) e 21 fumantes (45.8 ± 5.1 anos; 55% homens; 19.6 ± 11.8cigarros por dia; 24.1 ± 8.7 anos de exposiþÒo ao tabaco), com diagnóstico de gengivite e periodontite cr¶nica. Os exames periodontais: Indice de Placa Visível (IPV), Indice de SangramentoGengival (ISG), Sangramento O Sondagem (SS) e Profundidade de Sondagem (PS) e a coleta de FCG foram realizados nos dias 0, 30, 90 e 180. Após a raspagem supragengival realizada no dia zero (dia 0), os pacientes receberam instruþÒo de higienebucal semanalmente, até o dia 180. A análise estatística utilizou modelos lineares (Teste de Wald, p<0.05%). Os fumantes apresentaram um volume significativamente menor de FCG. Esteresultado nÒo esteve associado ao ISG, SS ou PS. Sítios com maiores valores de PS apresentaram maior volume de FCG.Durante o tratamento, uma reduþÒo significante do volume de FCG foi observada em fumantes e pacientes que nunca fumaram. Conclui-se que o tabagismo influenciou o volume de FCG independente da presenþa de sinais inflamatórios clínicos e que o hábito de tabagismo e a PS devem ser observados quando o volume de FCG e seus componentes estiverem sob investigaþÒo.(AU)

The effect of smoking on gingival crevicular fluid volume during the treatment of gingivitis / Efeito do tabagismo sobre o volume de fluido crevicular gingival durante o tratamento da gengivite

Smoking is detrimental to periodontal tissues, and periodontal destruction is greater among smokers. Paradoxically, smokers seem to have less gingival bleeding than never-smokers with comparable supragingival plaque. There is scarce information about the impactof smoking on gingival crevicular fluid (GCF) volume. This singlearm study clinical trial assessed the effect of smoking on GCF volume during the treatment of gingivitis. The sample included 24 never-smokers (47.3 ± 6.7 years old, 41.7% males) and 21 smokers (45.8 ± 5.1 years old; 55% males; 19.6 ± 11.8 cigarettes/day; 24.1 ± 8.7 years of smoking) with gingivitis and chronic periodontitis. After baselinesupragingival scaling, patients received oral hygiene instructions weekly for 180 days. Participants were examined at baseline, 30, 90 and 180 days, and gingival bleeding index (GBI), bleeding on probing (BOP), periodontal probing depth (PPD) and GCF volume wererecorded. Statistical analysis was performed using linear models (Wald test, p<0.05%). Smokers had significantly smaller GCF volumes than never-smokers. This finding was not attributed to GBI, BOP or PPD. Higher volumes of GCF were significantly associated with deeper pockets. GCF was significantly reduced throughout thestudy for both smokers and never-smokers, and the largest reductionswere seen at 30 days. Smoking affected the GCF crevicular fluid volumeindependently of the presence of gingival bleeding, BOP and PPD. Smoking status and PPD should be taken into account when GCG volume and components are under investigation.

O tabagismo é capaz de alterar a resposta periodontal determinando maior expressão de destruição periodontal em pacientes fumantes. Paradoxalmente, estes pacientes apresentam menos sangramento gengival frente a uma quantidade semelhante de biofilme dental, quando comparados a pacientes que nuncafumaram. Por outro lado, existe pouca informação sobre o impacto do tabagismo sobre o volume de fluido crevicular gengival (FCG). O presente ensaio clínico de braço único teve comoobjetivo avaliar o efeito do tabagismo sobre o volume de FCG durante o tratamento da gengivite. A amostra foi composta por 24 pacientes que nunca fumaram (47.3 ± 6.7 anos, 41.7% homens) e 21 fumantes (45.8 ± 5.1 anos; 55% homens; 19.6 ± 11.8cigarros por dia; 24.1 ± 8.7 anos de exposição ao tabaco), com diagnóstico de gengivite e periodontite crônica. Os exames periodontais: Índice de Placa Visível (IPV), Índice de SangramentoGengival (ISG), Sangramento à Sondagem (SS) e Profundidade de Sondagem (PS) e a coleta de FCG foram realizados nos dias 0, 30, 90 e 180. Após a raspagem supragengival realizada no dia zero (dia 0), os pacientes receberam instrução de higienebucal semanalmente, até o dia 180. A análise estatística utilizou modelos lineares (Teste de Wald, p<0.05%). Os fumantes apresentaram um volume significativamente menor de FCG. Esteresultado não esteve associado ao ISG, SS ou PS. Sítios com maiores valores de PS apresentaram maior volume de FCG.Durante o tratamento, uma redução significante do volume de FCG foi observada em fumantes e pacientes que nunca fumaram. Conclui-se que o tabagismo influenciou o volume de FCG independente da presença de sinais inflamatórios clínicos e que o hábito de tabagismo e a PS devem ser observados quando o volume de FCG e seus componentes estiverem sob investigação.

Periodontal status in smokers and never-smokers: clinical findings and real-time polymerase chain reaction quantification of putative periodontal pathogens.

BACKGROUND: Smoking is a well-known risk factor for destructive periodontal disease, but its relationship with periodontal status and subgingival microbiota remains unclear. Inherent limitations of microbiological methods previously used may partly explain these mixed results, and real-time polymerase chain reaction (PCR) has been presented as a valid alternative. The aim of the present study was to investigate the clinical condition and microbiological profile of patients with chronic periodontitis as related to the habit of smoking. METHODS: Fifty patients (33 to 59 years old), 25 smokers and 25 never-smokers, constituted the sample. The visible plaque index (VPI), gingival bleeding index (GBI), bleeding on probing (BOP), periodontal probing depth (PD), clinical attachment loss (CAL), and gingival crevicular fluid (GCF) volume were recorded. Real-time PCR quantified Porphyromonas gingivalis, Micromonas micros, Dialister pneumosintes, Actinobacillus actinomycetemcomitans and total bacteria in subgingival samples. RESULTS: Smokers and never-smokers showed similar values for VPI, GBI, and BOP. Smokers had deeper PD in buccal/lingual sites and higher CAL independently of the tooth surface. The GCF volume was smaller in smokers, independent of the PD. Similar amounts of total bacteria and P. gingivalis were observed for both groups. Significantly higher numbers of D. pneumosintes and M. micros were present in smokers and associated with moderate and deep pockets. When heavy smokers were considered, higher counts of total bacteria, M. micros, and D. pneumosintes were observed. CONCLUSIONS: Smoking seems to have a detrimental impact on the periodontal status and microbiological profile of patients with periodontitis. Compared to never-smokers, smokers had deeper pockets, greater periodontal destruction, and higher counts of some putative periodontal pathogens.