Dental impression tray

Details Dental impression tray Dental impression tray

2006-04-04

2006-04-04

O'Connor, Cary E. (Department: 3732)

Dentistry

Apparatus

Having static product shaping surface

C433S037000

Reexamination Certificate

active

07021929

ABSTRACT:
An improved dental impression tray provides an improved retentive force for the dental impression material contained therein by incorporating a plurality of projections and panels on its tray walls. Upon taking a dental impression, the dental impression material flows into the grooves defined by the plurality of projections, panels and the tray walls to form retentive components. These retentive components may prevent the impression material in the tray from distorting or being lifted out of the trays when the tray is disengaged from the oral anatomy of the patient.

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patent: D403771 (1999-01-01), Werrin
patent: 5890894 (1999-04-01), Mio et al.
patent: 6629841 (2003-10-01), Skinner

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