Ivanov, V., Lavrentyeva, Y., Lazareva, A. and Putrik, M. 2018. Smart toothbrushes as future oral hygiene learning technologies for children and adults. Clinical Dentistry (Russia). 4 (Dec. 2018), 46—51. DOI:https://doi.org/10.37988/1811-153X_2018_4_46.