Acknowledgement: the author expresses gratitude to Academician of the Russian Academy of Sciences, Rector of Yaroslavl State Medical University, Professor Alexander Leonidovich Khokhlov for his guidance while organizing the internship of second-year students of the Faculty of Dentistry at the Department of Public Health and Healthcare.

Compliance with ethical standards: during the research and preparation of the article, any necessary ethical standards have been followed. This is how its scientific and ethical correctness was ensured. Measures have been taken to ensure confidentiality and anonymity of participant-related data. Personal information of the participants was not disclosed being used for scientific purposes only.