Articles assessing the understanding of interns and undergraduate students about crown lengthening in Riyadh were lacking in previous years. This study targeted senior students and interns in three dental colleges (KSU, REU, and KSAU) to assess their expertise. One question in a cross-sectional questionnaire-based study asked participants whether they had ever seen a case in their clinic where crown lengthening was recommended. Three clinical and radiographic photographs were also included, each showing different potential management (crown coverage, extraction, and crown lengthening versus crown coverage). The responses of the participants varied. Participants who are interns generally showed greater awareness of crown lengthening. In one instance (the one about crown lengthening), a significant difference was observed between male and female participants; male students were more aware than female students (Chi-square = 15.804, P-value = 0.000). Overall, the majority of participants' responses to the questions were accurate. Additionally, 57% of participants decided that crown lengthening is necessary before speaking with the consultant. The findings showed that interns knew more about the necessity of clinical crown-lengthening treatments than senior students.
