Xylitol-containing chewing gums reduce caries rates by inhibiting microbial growth.The dental hygienist should recommend antacids and cough drops as salivary substitutes because they have anticariogenic properties.

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The first statement is true; the second is false.Xylitol,a sugar alcohol,is classified as anticariogenic because the oral flora does not contain enzymes to ferment it.Chewing gums,mints,and candies containing xylitol inhibit enamel demineralization.This inhibitory effect is enhanced by increased salivary flow,increased oral clearance,and greater buffering capabilities.The dental hygienist should caution patients to limit the use of medications that contain fermentable carbohydrates,including antacids and cough drops.

Xylitol-Containing Chewing Gums Reduce Caries Rates by Inhibiting Microbial Growth