MODEL OF TOOTH ENAMEL FOR TRIBOLOGICAL STUDY Article Matveeva V.A., Baikulova M.D., Kozlova Yu.S., Razumova S.N., Plokhikh A.I., Ruda O.V., Manvelyan A.S., Bragunova R.M. Journal of International Dental and Medical Research. University of Dicle. Vol. 16. 2023. P. 619-623