This study determines if there is a difference in dental students' attitudes, perceived barriers, subjective norms, perceived skills, self-efficacy, intentions to provide cessation treatment, and cessation knowledge in those students receiving a tobacco cessation lecture along with practice sessions using standardized patients and those students receiving only a tobacco cessation lecture. The study determines if dental students' use of tobacco affects their intent to provide cessation treatment to patients, and if the time between receiving the lecture and participating in the practice sessions using standardized patients makes a difference in dental students' attitudes, perceived barriers, subjective norms. perceived skills, self-efficacy, intentions to provide cessation treatment, and cessation knowledge.