This study examined (i) the prevalence of impostor feelings in firstyear dental students, (ii) student perceptions of a mindfulness practice as a tool to cope with impostor feelings, and (iii) students' ability to identify their level of impostor feelings. Methods: Two hundred three D1 students at a single institution participated in a mandatory Mind-Body Wellness Course that included the presentation "Understanding Imposter Phenomenon" (lecture #1) and a second presentation "Impostor Phenomenon and Mindfulness: Tools for Success" (lecture #2) 6 months later. Before lecture #2, all students predicted the level to which they suffer from imposter feelings and then took the Clance Impostor Phenomenon Scale (CIPS) to determine the actual level. After lecture #2, 155 of the students completed a survey on whether the mindfulness practices in the lecture impact their perceptions on coping with impostor feelings.Results: Fifty-two percent of students were classified as frequent or intense impostors by the CIPS. Fifty-one percent predicted their CIPS classification correctly; 43% underestimated their impostor classification. After lecture #2, 86% reported feeling confident they could recognize their impostor feelings, and 93% reported feeling more aware of how impostor feelings influence their thoughts, behaviors, and actions. Eighty-six percent reported feeling the mindfulness exercise was a helpful tool to build habits to cope with impostor feelings; 83% reported feeling confident they could utilize mindfulness practices to mitigate these feelings when they arise. Conclusions:Frequent or intense impostor feelings may be common in firstyear dental students. Mindfulness practice has potential to mitigate such impostor feelings.