| http://www.w3.org/ns/prov#value | - A method for controlling deleterious bacteria found in the mouth comprising: providing a device for delivering UVA light to the mouth including a head at its distal end and a UVA light source located contiguously to the head; coating teeth, gums, tongue or other oral surfaces with a composition including a photocatalyst responsive to UVA light; and and applying UVA light from the device directly t
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