Prevention of mercury vapor contamination from amalgam scrap.
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Biomedical subjects
Publications and source records attributed to W W Barkmeier.
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Multiple theories of the cause and treatment of aphthous ulcers are described in the medical and dental literature. A case is reported in which there were posttreatment sequelae from the application of a sillver-nitrate stick (pencil) to an aphthous ulcer on the tongue. Compications subsequent to the use of silver nitrate may contraindicate the use of this agent in its highly concentrated form on the mucous membranes of the mouth.
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An in vitro study has shown that the TMS minim two-in-one, self-shearing pin reaches maximum depth in a 2-mm pin channel before shearing off with insertion by a hand-turned wrench. The self-shearing, two-in-one pin did not achieve the full channel depth of 2 mm with insertion by an Auto Klutch handpiece.
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Slide illustrated presentations can be improved with dual image projection. A dissolve control unit can be used to enhance the presentation of sequence material and also can be incorporated into the dual image system of the slide delivery.
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