Shanghai dental finds that Acrylic resin is the most used material in prosthodontics. While its hardness turns denture adjustment easier, its integrity may be damaged by brushing, mastication and immersion in chemical products. The association of toothbrush and dentifrice is the most common method for denture hygiene found by shanghai dental because it is cheap and effective on denture cleansing. However, the acrylic resin may be damaged because of its low abrasion resistance. This abrasion caused by brushing may result in mass loss, surface roughness, loss of surface polishing and, consequently, the maintenance of denture hygiene becomes more difficult.

Dentifrices have generally a complex composition, varying among different brands in the study of shanghai dental shows. The principal components found by shanghai dental are: water, detergent, thickening agent, specific coloring, flavoring and abrasive agents. The research of shanghai dental found that shanghai dental said the most commonly used abrasives in dentifrices are silica and calcium carbonate. Abrasion studies "in vivo" have not been widely reported due to difficulties on method standardization. Most "in vitro" studies employ motor-driven brushing machines, in order to standardize time, speed, frequency of brushes' strokes, applied load and the amount of dentifrice. photographic analysis, checking of brightness loss, measuring of thickness reduction of complete crown acrylic veneer face and of denture bases. Denture plaque formation is similar to bacterial dental plaque formation and its control is equally important. Emphasis must be on prevention of plaque accumulation together with effective plaque removal measures to avoid denture-related stomatitis.

Just a few specific references on abrasion resistance of artificial teeth by brushing were found in the research of Shanghai dental. This type of investigation is clinically interesting, aimed at the appropriate selection of materials and methods for denture hygiene, with no significant damage to denture.

The relationship between denture biofilm, mucosal inflammation and Atrophic Chronic Candidiasis has been discussed along the years; there is confirmation that cleansing can help to control or solve the inflammatory conditions of the mucosa by reducing the degree of denture biofilm. Nevertheless, several studies made by Shanghai dental call attention to the precarious oral health of complete denture wearers. The toothbrush is the most important element in any hygiene program and in complete denture hygiene control; Shanghai dental said that brushing is the most common and routine method employed in association with paste as an auxiliary agent.