CHANGES IN THE MICROELEMENT COMPOSITION AND PH OF THE ORAL LIQUID AFTER PROSTHESIS WITH SOLID-CAST BRIDGE DENTURES

Abstract

Introduction. The environment of the oral cavity is a complex electrolyte environment with variable pH values, in which metal restorations release metal ions. These ions can induce cell apoptosis through intrinsic and extrinsic pathways. Dental alloys require excellent wear resistance and biocompatibility, which can extend the service life of removable prostheses. Aim. To study the composition of microelements and pH in the oral fluid in the presence of fixed cast prostheses made of cobalt-chromium and nickel-chromium alloys Remanium GM 700 and Remanium CSe of certified delivery and after multiple remelting. Materials and methods. 120 patients aged 25 to 60 took part in our study, including 79 women (65.9%) and 41 men (34.1%), who were divided into 4 groups of 30 people each. In the presented research studied the composition of microelements and pH in the oral fluid in the presence of fixed cast prostheses made of cobalt-chromium and nickel-chromium alloys Remanium GM 700 and Remanium CSe of certified supply and after multiple remelting. Depending on the type and topography of the defect in the dental row, patients were made permanent cast dentures. Results. After 7 days, the pH value shifted to the acidic side in people who were made solid-cast constructions with the specified alloys, and after 3 months it reached a neutral value. The dynamics and degree of expression of the change in pH depend on the timing of the study, the quality of the alloy, and the technological process of manufacturing solid-cast structures of dental prostheses. Conclusions. We determined that the composition of microelements of oral fluid in the presence of solid-cast prostheses changes under the influence of random factors. The studied alloys do not harm the patient's organism and therefore can be used for the production of solid-cast constructions of dental prostheses.