| 摘要 |
PROBLEM TO BE SOLVED: To provide a dental bleaching agent with accelerated bleaching activity and a dental bleaching method using it. SOLUTION: The dental bleaching system comprises a bleaching component and a neutralizing component giving a mixed composition having a desired bleaching activity and a gelling property when mixed together. The bleaching composition contains about 3-95 wt.% concentration retative to the component of the bleaching composition of an aqueous hydrogen peroxide solution or the like. The neutralizing composition contains a granular strong base mixed with a polymer thickening agent substantially free from water before formation of the mixed composition to prevent destruction of the gelling property of the polymer thickening agent caused by the base. The granular base may contain an oxide, hydroxide or carbonate of alkali metal or alkaline-earth metal. Stability of the bleaching agent and the gelling (thickening) agent can be improved during storage and transportation by maintaining the bleaching agent and the neutralizing agent as separate components. COPYRIGHT: (C)2008,JPO&INPIT
|
