Journal
CLINICAL ORAL INVESTIGATIONS
Volume 16, Issue 2, Pages 571-580Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00784-011-0521-3
Keywords
Aggregatibacter actinomycetemcomitans; Porphyromonas gingivalis; Tannerella forsythia; Prevotella intermedia; Prevotella nigrescens; Treponema denticola
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Funding
- Helsinki University Central Hospital [TYH3245]
- City of Kotka
- Cultural Foundation of Kymenlaakso
- Yrjo Jahnsson Foundation
- Kymin Osakeyhtion 100-vuotissaatio
- Finnish Women's Association
- Finnish Dental Society Apollonia
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The aim of our study was to investigate how teenage smoking affects the prevalence of periodontal bacteria and periodontal health with the hypothesis that smoking increases the prevalence of the bacteria. Oral health of 264 adolescents (15- to 16-year-olds) was clinically examined, and their smoking history was recorded. The participants also filled in a structured questionnaire recording their general health and health habits. Pooled subgingival plaque samples were taken for polymerase chain reaction analysis of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia, Prevotella intermedia, Prevotella nigrescens, and Treponema denticola. The prevalence of P. intermedia (21% vs. 4%, p = 0.01) and T. forsythia and T. denticola (23% vs. 8%, p < 0.05, for both) was higher among female smokers than among non-smokers. T. forsythia and T. denticola were more often associated with bleeding on probing (29% vs. 12%; 25% vs. 10%, respectively) and deep pockets (25% vs. 15%; 23% vs. 10%, respectively) with smokers than non-smokers. Among the girls, a significant association was found between pack-years and the prevalence of P. nigrescens (p < 0.007). In both genders, A. actinomycetemcomitans and P. gingivalis were rare in this study. To conclude, periodontal bacteria were associated with higher periodontal index scores among all teenage smokers. Smoking girls harbored more frequently certain periodontal bacteria than non-smokers, but this was not seen in boys. Hence, our study hypothesis was only partly confirmed.
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