Patent ID: 7137813
Filing Date: 2006-11-21
Classification: A61C

Abstract:
1. A dental impression tray dam system employing dental impression material for use in the mouth of a patient comprising: a. an open tray, said tray including a bottom and a wall portion extending outwardly therefrom, defining an open basin for the dental impression material, said open basin including an end portion intended to lie distally from the entrance to the mouth of the patient, said outwardly extending wall portion of said open basin forming at least one gap thereof at said end portion of said open basin; b. a flexible band of material bridging said at least one gap in said outwardly extending wall portion of said end of said open basin, said flexible band of material interacting with dental impression material positioned in said basin to form a unit and c. means for adhering said flexible band of material to said open tray, said means comprising molding said flexible band to said open tray.