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" If you&amp;#039;ve just eaten some grapefruit wedges or sipped a glass of orange juice, stay away from your toothbrush. Citrusy foods and beverages leave acid on your teeth, and &amp;quot;brushing immediately after eating or drinking them rubs the acid further in and can erode enamel,&amp;quot; says Connie White, D.D.S., spokesperson for the Academy of General Dentistry. When enamel--the protective outer coating on your teeth--wears away, the softer dentin layer underneath is exposed, leaving you vulnerable to tooth sensitivity (the kind that makes drinking hot and cold beverages weirdly painful) and cavities. Plus, &amp;quot;once enamel is gone, it&amp;#039;s gone. It doesn&amp;#039;t grow back,&amp;quot; warns White, who suggests that you delay brushing a full 60 minutes after a citrusy meal or snack. Other acidic foods that can harm your teeth: fruit juice, soda (including diet), sports drinks, and--yes--even wine. Bartender, pass the straws. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.redbookmag.com/body/health-fitness/advice/a14604/brushing-teeth-too-much/>