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  • Title: [Cotinine concentration in the saliva in relation to oral hygiene procedures].
    Author: Bachanek T, Nakonieczna-Rudnicka M, Piekarczyk W.
    Journal: Przegl Lek; 2014; 71(11):616-9. PubMed ID: 25799856.
    Abstract:
    Cotinine is a biomarker of the exposure to the tobacco smoke, nicotine metabolite with half-life in the saliva which is 17 hours. Assessment of cotinine concentration enables among others verification of the questionnaire data as well as evaluation of both smokers and non-smokers exposure to the tobacco smoke. Practicing proper oral hygiene procedures is an essential factor of the prophylaxis of dental caries and periodontal diseases which influence general health state. The removal of dental calculus is achieved by proper teeth brushing and the use of additional oral aids. The aim of the study was evaluation of cotinine concentration in non-stimulated saliva in order to verify questionnaire data (smoker/non-smoker) and analysis of practicing oral hygiene procedures in relation to the status of cigarette smoking. Questionnaire and biochemical studies were conducted in the group of 116 people aged 20-54. In questionnaire survey 53 people (45.69%) confirmed cigarette smoking, 63 (54.31%) declared they had never smoked and never tried to smoke. Non-stimulated saliva was collected between 9(30) and 11(30), 1,5-2 hours after meal. Cotinine concentration was assayed with the use of Cotinine ELISA (Calbiotech, USA). Obtained study results were submitted to statistic analysis with the use of Chi2. Statistically essential test values were those with p<0,05. In the study group the mean value of cotinine concentration was 155.76 ng/ml. Brushing teeth once a day or less frequently was reported by 26.92% smokers and 4.76% non-smokers, brushing teeth at least twice a day was reported subsequently by 73.08% and 95.24% participants. Non-smokers in comparison with smokers considerably more frequently brushed their teeth, at least twice a day (XZ=11.11, p<0.001). Smokers used a toothbrush with medium hardness bristle (X2=6.05, p<0.05) as well as toothpicks to maintain hygiene of interdental spaces and teeth contact surfaces (X2=21.34, p<0.001) whereas they used dental floss less frequently (X2=10.64, p<0.01). Smokers more fre. quently brushed their teeth improperly (X2=1 3.41, p<0.001). Smokers in comparison with non-smokers did not practice proper oral hygiene which is an essential risk factor of the oral health. It is crucial for dental surgeons to conduct oral hygiene instructions in smokers as well as realization of health threats resulting from cigarette smoking.
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