Diet affects the integrity of the teeth; quantity, pH, and composition of saliva; and plaque pH. Dental plaque, which develops naturally on hard tissues of mouth, through complex ecosystem intraorally. Studies have shown a correlation between the acidogenic potential of a food and changes in the pH of human dental plaque following the ingestion of that food. Chewing sugarfree gums promote strong flow of stimulated saliva, which aid in rapid oral clearance of sugars; second, the high pH and the buffering capacity of the stimulated saliva help to neutralize plaque pH after a sugar challenge. Today, more than 50 percent of Chewing gums are sweetened with sugar substitutes such as polyol sweeteners, artificial sweeteners or both. Study results have shown that oral bacteria do not use these sugar substitutes to produce acids that demineralize enamel and dentin. thence, the following review is an attempt to provide an insight to various poplyols and their proposed mechanisms and their potential benefits.

Keywords: Polyols; Chewing Gums; Xylitol; Sorbitol.