| 摘要 |
PURPOSE: A U-shaped tray for the dental impression is provided to prevent the shaking of the tray when obtaining the impression of teeth by offering improved stability. CONSTITUTION: A U-shaped tray for the dental impression includes a handle unit(1), and a U-shaped dental impression material storing unit(2). The U-shaped dental impression material storing unit includes an outer supporter(3) with the curvature radius bigger than the curvature radius of teeth of a patient, an inner supporter with the curvature radius smaller than the curvature radius of teeth of the patient, and a net cloth(5) installed in between the outer and inner supporters. The U-shaped dental impression material storing unit includes an extension unit formed from the center of the tray to the back of the molar union point in a symmetric shape.
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