QUALIMETRICS COMPARATIVE EVALUATION OF TOOTH-TECHNICAL DENTAL MATERIALS FOR THE MANUFACTURE OF DENTURES

Abstract. Taking into account the significant number of basic and auxiliary dental materials used in the stages of orthopedic treatment, the urgent need to carry out a comparative qualitative assessment of tooth-technical dental materials, the main function of which is to inform the doctor about their optimal selection, becomes clear. The purpose of the study was to conduct a comparative multivariate qualitative analysis of structural and auxiliary dental materials. Of the structural materials for orthopedic dental structures, we studied dental plastics, coating varnishes and cements for permanent fixation of dental prostheses in laboratory and experimental conditions, as well as functional and structural materials (silicone lining and adhesive) and obtained the corresponding qualitative indicators, the informativeness of which is high and fluctuating within the limits: for hot polymerization plastics – (0.343÷0.349) bits, for cold polymerization plastics – (0.052÷0.203) bits, for coating varnishes (0.169÷0.333) bits, for cements for permanent fixation – (0.228÷0.297) bits, for adhesive materials – (0.157÷0.327) bits. The bond strength (U, kgf/cm2) of the material for soft substrates ranges from (5.29÷19.2) kgf/cm2 and meets regulatory requirements. We additionally calculated the corresponding technological indices of metal-dentin biadhesion of cements for permanent fixation, the value of which varies within (2.3÷2.5) units. With the goal of conducting a comparative multifactorial qualitative analysis of structural and auxiliary dental materials, we obtained data that integrally characterize the quality of the material according to a set of indicators using a single method of comprehensive assessment of their properties.