CURRENT APPROACHES TO THE SELECTION OF MATERIALS FOR ORTHOPEDIC TREATMENT OF PATIENTS WITH REMOVABLE PROSTHETICS

Аннотация

Acrylic plastic is the most widely used material in the manufacture of removable dentures. However, its use is accompanied by a number of disadvantages: 1) the presence of a residual monomer, the concentration of which can reach 8% in violation of the polymerization regime, which contributes to the development of both local and systemic allergic reactions; 2) the microporous structure of the bases, contributing to the accumulation of bacteria; 3) limited strength of the material. As an alternative to acrylic plastics, new technologies for manufacturing removable orthopedic structures based on thermoplastics have been developed in the dental materials market. These materials, due to their chemical structure, are devoid of the characteristic disadvantages of acrylic plastics and have significantly higher strength characteristics. In modern dental practice, five main types of thermoplastic materials are used: polyoxymethylene, nylon, ethylene vinyl acetate, and monomer-free acrylics. Thus, a wide range of basic thermoplastics provides the opportunity to choose the optimal material depending on the clinical characteristics of the patient, which is especially important for people with hypersensitivity to acrylic plastics.