Furdychko, A.I., Ilchyshyn, M.P., Barylyak, A.Y., Fedun, I.R. and Khoroz L.М. 2020. Development features of periodontal tissues inflammatory diseases of nicotine dependent patients with chronic toxic hepatitis. Actual Dentistry. 5 (Dec. 2020), 26. DOI:https://doi.org/10.33295/1992-576X-2020-5-26.