STILL OLD NEWS BUT NO CURRENT NEWS ABOUT IT
Lawrence, Cameron. "Grow New Teeth, Only 20 Minutes a Day" 30 June 2006. HowStuffWorks.com. <http://health.howstuffworks.com/medicine/modern-technology/ultrasound-teeth-news.htm> 28 September 2015.
http://health.howstuffworks.com/medicine/modern-technology/ultrasound-teeth-news.htm
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