Monopoly coating on acrylic resin surfaces: a bacteriologic study.

Abstract

In an open bulb of a buccal flange obturator, it is almost impossible to polish the inner surface of the bulb. Because it cannot be cleaned easily, oral and nasal secretions lead to odors. To obtain a smoother surface, it is suggested that monopoly be painted on the unpolished surface of the open bulb. In this study, the effect of a monopoly coating on bacteria retention and washability of acrylic resin surfaces was investigated. Coated and uncoated acrylic resin samples were prepared and both were contaminated with Escherichia coli. After standard washing, the remaining viable E. coli colonies were counted. The statistical results showed that the difference in the number of E. coli colonies between coated and uncoated groups was highly significant (p less than 0.001). It was suggested that monopoly should be applied to the acrylic resin surfaces where mechanical polishing cannot be done.