Patent ID: 9028656
Filing Date: 2015-05-12
Classification: A61C,H05H

Abstract:
1. A method for whitening teeth, comprising: supplying a liquid sufficient to at least partially submerge a portion of a tooth; positioning a plasma device adjacent to the submerged portion of the tooth, the plasma device including an electrode formed from a metal alloy and a dielectric layer covering the electrode, wherein the dielectric layer is slidably disposed over the electrode; supplying ionizable media to the plasma device; igniting the ionizable media at the plasma device sufficient to form a plasma effluent in the presence of the liquid at a distal portion of the plasma device, whereby the plasma effluent reacts with the liquid to form at least one reactive species that interacts selectively with foreign matter disposed on the tooth; and sliding the dielectric layer to adjust an exposure distance of the plasma device.