Tooth sensor tattles on smokers, snackers

07/31/2013 | New Scientist

A tiny sensor that can be embedded in teeth or dentures senses jaw movements and transmits the data to a smartphone. Testing in eight participants showed the sensor detected 94% of the time whether the user was eating, drinking, smoking, speaking or coughing. The device could be used to monitor "patients who clench or grind their teeth, and for assessing the impact of various dental interventions," says Trevor Johnson, of the U.K.'s Faculty of General Dental Practice.

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