Analysis of Microorganism Adhesion to the Surface of Removable Plastic Dentures, Depending on the Method of Cleaning

The aim of the study was to analyze the adhesion of microorganisms to the surface of removable plastic dentures, depending on the method of their cleaning, in order to determine the optimal method of hygienic care for the prosthesis. Blocks of basic plastic were made and the operating and cleaning conditions of removable dentures were modeled in various ways. Among the hygiene items considered was a manual toothbrush, an electric one, and an ultrasonic one. Soap, hygienic toothpaste, whitening toothpaste, as well as tablets for cleaning removable dentures were used with each hygiene item. Next, the degree of adhesion of a number of microorganisms to the surface of the prepared plastic blocks was investigated, the number of microorganisms was counted and the statistical processing of the results was carried out. Among the hygiene items, an ultrasonic toothbrush is the best option, and among the hygiene products, the best result was recorded when using tablets for cleaning removable dentures. In cases of chronic infectious diseases of the denture-bearing area, the hygiene method should be selected individually.