Patent ID: 8591228

Claim:
An injection correction impression tray for producing dental impressions, comprising: a base body, said base body having sidewalls, a bottom opening and an interior, the interior being surrounded by said sidewalls and being designed and arranged to contain impression material; and a profile bottom plate, said profile bottom plate including two symmetric halves, a first side, and a second side, said profile bottom plate including a first channel having a first diameter, at least two second channels having a second diameter and a third channel having a third diameter, said first channel, said second channels and said third channel being arranged in said first side, said first channel substantially having an arcuate shape and extending over a portion of said bottom plate, said first channel being connected to at least one injection channel inlet, each of said second channels extending over a portion of one of said halves, each of said second channels being connected to at least one drainage channel outlet; said profile bottom plate being connected to said base body in a way to close said bottom opening and such that said first side and said first channel and said second channels face the interior of said base body; said profile bottom plate being designed to be separate from said base body in a way that it can be disconnected from said base body in a non-destructive way; said first channel being designed and arranged to form a rib of a first impression material being introduced into the interior of said base body and flowing into said first channel, said first channel being designed and arranged such that a channel for introducing correction impression material is formed by said first channel and a remainder of the first impression material where the rib of the first impression material has been partly removed, said second channels each being designed and arranged to form a rib of a first impression material being introduced into the interior of said base body and flowing into said second channels, said second channels being designed and arranged such that a drainage channel is formed by each of said second channels and a remainder of the first impression material where the rib of the first impression material has been partly removed, said third channel being designed as a deaerating channel the third diameter of which is smaller than the first and second diameters of said first and second channels.