The scientific production process allows research to be summarised and translating it into writing for future communication. The present study aimed to determine the number of theses published in scientific journals by undergraduate students. Materials and methods: A descriptive, retrospective study conducted to evaluate 269 theses supported and registered in the library system of the National University of San Marcos from 2005 to 2015. Using a manual search in the databases Google Scholar, Medline, SciELO and Lilacs the publication of the theses was verified, along with the evaluation of the methodological design, thematic area, type of journal and language of publication. Results: Of the 35 (13%) theses published in scientific journals, 51% had an observational design, 23% were related to basic sciences, with 80% being published in national journals and 94.3% in the Spanish language. Conclusion: The scientific production of supported theses was low in the10-year evaluation. The majority of these published were in non-indexed national journals, and mainly in the Spanish language. The main design of the theses published was observational and the main thematic areas were related to basic sciences and Orthodontics.