You and a dental professional may decide that a prescription toothpaste such as 3M Clinpro 5000, which contains more fluoride than traditional toothpaste brands, may be the best choice for you.

In January, St. Paul, Minn.-based 3M will release "Clinpro 5000," a specialty toothpaste Indiana Nanotech developed. The slogan: "Winning formula Founded in 2006, the startup has two full-time ...