公开(公告)号：EP1020178B1

公开(公告)日：2003-10-01

申请号：EP99114548.3

申请日：1999-07-23

申请人： AdDent Inc.

发明人： SHARMA, Brahma

IPC分类号： A61K7/20 ,  A61K7/16

CPC分类号： A61Q11/00 ,  A61K8/22 ,  A61K8/25 ,  A61K8/365 ,  A61K2800/45 ,  A61K2800/88

公开(公告)号：EP1020178A1

公开(公告)日：2000-07-19

申请号：EP99114548.3

申请日：1999-07-23

申请人： AdDent Inc.

发明人： SHARMA, Brahma

IPC分类号： A61K7/20 ,  A61K7/16

CPC分类号： A61Q11/00 ,  A61K8/22 ,  A61K8/25 ,  A61K8/365 ,  A61K2800/45 ,  A61K2800/88

摘要： A dental bleaching system and method having two separated components adapted to be dispensed from a single dispenser as a mixed viscous dental bleach composition. The first component comprises aqueous hydrogen peroxide and the second component includes a gelling agent, catalyst, a ph alkaline buffer, a redox color indicator adapted to oxidize in the presence of a peroxide from a visible color into a neutralized color and a second dye stable in the presence of a peroxide with the concentration of the redox color indicator selected relative to the second dye such that the redox color will predominant during the bleaching operation and the second dye will predominant at the end of a controlled time period corresponding to when the bleaching treatment may be discontinued.