Terminal efficiency is an indicator that evaluates the productivity of a higher education institution and reflects a crucial aspect of the quality of its offered programmes. This study aimed to determine the successful graduation of undergraduate students from a dental school at a Peruvian university over six years, using the terminal efficiency indicator. The database was created using information from the institutional repository of the Universidad Peruana Cayetano Heredia; graduates from 2017 to 2022 were selected, their data was downloaded, and statistical analyses were performed. Considering the graduates with documents to qualify for degrees and titles published in the institutional repository (n=291), 70.10% (n=204) of the graduates demonstrated a categorised terminal efficiency as "Up to 1 year", with a mean terminal efficiency of 1.23 years (SD=0.78). The analysis revealed a statistically significant association between the categorised terminal efficiency and the graduation year (p<0.001). Furthermore, a statistically significant difference was observed when examining the mean terminal efficiency across different graduation years (p<0.001). This study reveals a positive trend in the successful graduation of undergraduate students from a Peruvian university dental school, with a notable improvement in recent years.