Purpose: improving the quality of prosthetic patients with partial absence of teeth (more than 6 teeth in the jaw) using plate denture made with using allergen-free plastic-polypropylene copolymer.
Methods. Clinical studies were subject to the design of denture copolymer polypropylene “Tipplene R 359”, which has a number of advantages over other counterparts. To improve the quality range of copolymer “Tipplene R 359” after polymerization and fitting prosthesis treated in glow discharge plasma.
Results. The minimum values of the shrinkage of the developed materials ensure high precision of the made prostheses that, in turn, it makes it possible to avoid significant trimmings and corrections of prostheses. The results of the investigations conducted by us testify about very low water absorption of polypropylene materials in comparison with the acrylic plastics. Being located in the cavity of mouth, polypropylenes, especially copolymer “Tipplene R 359”, will be less subjected down the action of moist medium, which is expressed before the penetration into the depths of the material of moisture with the located before it microorganisms and different chemical compounds. Furthermore, it is known that with the absorption as far as 1.5–2% of water the strength of material decreases. Consequently, minimum water absorption of the created materials profitably distinguishes them based on the widely used basic acrylic plastics.
Conclusions. The low rate of complications in the form of prosthetic stomatitis clinically characterized by the absence of changes in the mucosa of the prosthetic area at the survey at the immediate terms (within 1 day, 7 days and 1 month) and during the long-term period — 1 year.