Introduction: Dental and oral health is an essential part of your overall health and well-being. Poor oral hygiene can lead to dental cavities and gum disease, and has also been linked to heart disease, cancer, and diabetes. Aim: Aim of the study is to assess the lifestyle and dental health behavior among outpatients in a private dental college. Materials & Methods: This cross-sectional study was conducted among patients visiting private dental College, Chennai. The survey was conducted among 104 outpatients. Interviewer administered questionnaire was used and the collected day was analyzed using a chi-square test. Results: About 78% of people visit the dentist regularly and about 82% brush their teeth once a day and the rest of 18% brush their teeth twice a day. about 56% of respondents do not consume tobacco and 32% consume tobacco occasionally. Tobacco consumption was less among those who visited the dentist when compared with those who haven't visited [p value 0.00]. Gum health was perceived as excellent by more numbers of males than females [p value 0.00]. Conclusion: Male study participants and educated individuals were found to be significantly associated with positive dental health behavior. Dental visit and reduced tobacco consumption was significantly associated among the study participants.