Callous or plaque: Most plaque buildup on your tongue turns white. If you have a lot of irritation on the tongue due to dental plaque you can build a callous. This will appear white even after brushing your tongue. Most tongues that are not brushed regularly look white. Scraping your tongue with a tongue brush or a toothbrush will help alleviate this problem. Try to pull forward the plaque not back and forth.
Answered 8/6/2014
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