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Objective: The purpose of this study was to get new information from several sources about the background factors of Finnish smokers, snuffers, and dual users. Profiles of young smokers and snuffers were investigated in association with restorative treatment need, oral hygiene, eating habits, physical activity, body mass index (BMI), psychological and socioeconomic factors. Material and methods: The study group comprised 3420 conscripts. The data were collected from four different sources: a health examination including an oral health screening, a computer-based questionnaire for investigating individual background factors, a psychological test assessing cognitive skills, and the Cooper test. Statistical analyses comprised cross tabulation and binary logistic regression modelling. Results: The odds for smoking were the greatest among those who had DT (Decayed teeth) > 0, used energy drinks or alcohol regularly, or whose parents were divorced. A score of ≥2900 m in the Cooper test, a higher physical exercise level, a higher own education level, and using sports drinks decreased the odds for smoking. The odds for snuffing were higher among those who ran >2500 m in the Cooper test, had a BMI of ≥25, used sports/energy drinks, or exercised regularly, and lower among those who achieved good results in the cognitive test. Using energy/sports drinks or alcohol was positively and a higher education level was negatively associated with dual use. Conclusions: Along with increasing prevalence of snuffing, heterogeneity is likely among snuffers. Good cognitive skills may prevent from smoking and snuffing.

Objectives: The aim of this study was to describe the use of tobacco and changes in its use over time among individuals living in Jo¨nko¨ping, Sweden, and to analyse tobacco habits in relation to socioeconomic conditions, personality aspects and dental care habits. Methods: This study comprised three epidemiological cross-sectional studies, involving a random selection of individuals aged between 15 and 70 years, and was conducted in 1983, 1993 and 2003. The participants were asked to complete a questionnaire. Results: The results revealed a statistically significant reduction from 34% tobacco users in 1983 to 27% in 1993 and 28% in 2003. The main decrease was seen among smokers. At the same time, the number of users of snuff increased in all the age groups between 20 and 60 years of age. The use of tobacco was therefore largely unchanged in 1993 and 2003. In 2003, there was a statistically significant difference between users and nontobacco users when it came to the frequency of dental visits; more tobacco users than non-tobacco users did not visit a dentist at all or did not visit a dentist regularly. In 1993, nontobacco users brushed their teeth more frequently than tobacco users and this difference was statistically significant. Conclusions: During the 20-year study, there was a reduction in the number of smokers and an increase in the number of snuff users. There was a difference between tobacco users and non-tobacco users when it came to the frequency of dental visits and oral hygiene habits

The aim of the present investigation was to measure the approximal fluoride (F) concentration after using different F-containing products, either alone or in combination. Ten subjects participated on a total of 17 occasions, which were randomized, distributed and divided into two trials (called trial I and trial II). The F concentration was studied after treatment with toothpicks, dental flosses, an interdental brush dipped in 0.2 or 0.32% F gels, brushing with toothpaste containing 0.32% F and a mouthrinse with 0.2% NaF solution. The results of trial I revealed that the rinsing solution resulted in the highest approximal F values, followed by toothpicks and brushing. When brushing was combined with either flossing or toothpick, the sequence order of the two methods had less influence. However, when combined with rinsing it appeared to be better to use the floss or the toothpicks first, prior to the mouthrinse. In trial II, treatment with the gels alone, and in combination with brushing, resulted in higher approximal F concentrations compared with brushing alone. The data indicate that the order of usage when combining products may be of importance when it comes to obtaining high F levels at the approximal sites and that an interdental brush with F gel after toothbrushing may be a suitable method, called 'Inter Dental Brush Gel Method', to produce elevated F concentrations at approximal sites.