We will test two levels of intervention as compared to usual care in a randomized clinical trial in which 60 dental practices in Mississippi are randomized to one of three conditions. In one condition ("5A's"), the dental team will provide a brief office-based intervention that is modeled on the "5A's" advocated by the Clinical Practice Guideline. In the second condition ("3A's" + THL), the dental team will provide the first three "A's" (Ask, Advise, Assess), and then refer patients to the State-supported telephone help line for provision of the cessation counseling and follow-up support. In the third condition (Usual Care), volunteering practices will ask their patients only to complete our study surveys.