The overarching hypothesis of this line of research is: A brief office intervention with proactive tobacco quitline counseling incorporating patient-specific oral health information obtained during a dental hygiene visit (intervention) will increase prolonged abstinence rates from cigarette smoking compared to a brief office intervention alone (control) at 3 and 6 months.To test our overarching hypothesis in a Phase III clinical trial, we are first seeking R21 funding through the NIDCR Clinical Pilot Data Grant (PAR-03-043) mechanism. This R21 funding will be used to refine the design of dental clinic staff training, study implementation, and data collection procedures, to optimize the design of the definitive trial, and to test and document recruitment and data collection mechanisms.