@article{Semencova2020influence,
author={Semencova, E.A. and Bazarnyy, V.V. and Mandra, Y.V. and Polushina, L.G. and Svetlakova, E.N.},
title={INFLUENCE OF AGE ON PERIODONTAL HUMAN HEALTH},
journal={Actual problems in dentistry},
publisher={TIRAZH Publishing House},
year={2020},
pages={30-36},
volume={16},
issue={3},
}