DR. MARK SWEENEY: We have three different lasers in our office. One is used in our hygiene department to diagnose whether there’s decay in the tooth or not by penetrating the tooth with a laser beam and measuring how much tooth bounces back. Totally harmless. Very simple to do. If there’s decay into a tooth inside of a tooth to a degree that it needs to be restored, much of the light gets absorbed and so the digital reading on […]
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