To examine the effectiveness of advising patients who use tobacco to quit, the authors conducted a randomized clinical trial to test a brief office-based intervention with all tobacco users in 75 fee-for-service dental practices in Oregon. The authors found that the dental hygienist-delivered intervention was effective in getting smokeless tobacco users to quit at three and 12 months and to sustain abstinence at both three and 12 months. They found that the program was not effective for cigarette smokers. The authors discuss the public health implications of program dissemination and widespread program adoption.
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