Patent ID: 8845331
Filing Date: 2014-09-30
Classification: A61C

Abstract:
1. A method for making an individual impression tray for obtaining an impression of a dental arch comprising the steps of: arranging in a container: a model of a material selected from the group consisting of a ceramic material and a glass material reproducing a dental arch; a semifinished product of thermoformable material located above the model at the dental arch; a heat-transmission fluid such that the model and the semifinished product are dipped in said fluid; softening the thermoformable material of said semifinished product by heating said fluid at a temperature higher than the temperature for softening said material, said softening step causing the semifinished product to become thermoformed on the model, obtaining a recess on the side of the semifinished product next to the dental arch of the model and a protrusion on the opposite side; cooling the thermoformable material to obtain the individual impression tray; wherein said pre-printed semifinished product is finished, by modelling said pre-printed semifinished product directly on the dental arch of the patient obtaining an individual impression tray; and wherein before finishing the semifinished product of thermoformable material by modeling said semifinished product of thermoformable material on a dental arch of the patient, a step is provided of spraying a surfactant on the dental arch.