THE USE OF AN OZONE GENERATOR THAT PRODUCES OZONE USING ULTRAVIOLET RADIATION FOR OZONIZE THE CONTACT MEDIUM IN THE TREATMENT OF GINGIVITIS OF YOUNG PEOPLE Article Mkhoyan G.R., Razumova S.N., Volkov A.G., Dikopova N.J., Brago A.S., Said O.M.H.B., Akhmedbaeva S.S., Serebrov K.D. Journal of International Dental and Medical Research. University of Dicle. Vol. 15. 2022. P. 250-254