Gerontological education and intergenerational contact are proven strategies for effectively combating ageism. In this context, this study investigates the association between gerontological education, intergenerational contact, and ageism among dental students. Gerontological education from students' perspective, intergenerational contact, and ageism were assessed using a questionnaire containing sociodemographical aspects and an ageism scale (ASDS-Braz). The sample included students enrolled in the final year of dental programs at three public universities in southern Brazil. A multilevel Poisson regression was conducted to assess factors associated with ASDS-Braz scores. A modest correlation was identified between dental schools in terms of reducing ageism, and a weak correlation was found between self-reported race and ageism. Notably, statistically significant findings were observed across family relationship with older individuals: students who reported having a poor relationship with older adults in their families presented 45% higher ageism scores than did those with an excellent relationship. The results suggested that while some gerontological education was reported by the participants, it may not be sufficient to prepare dental students to provide effective oral healthcare to older adults and to reduce ageism among them. Additionally, reinforcing positive aspects of intergenerational relationships may be an additional strategy in combating ageism within this population.