| 摘要 |
PURPOSE: A dental impression tray prevents a handle part from being in strong contact with a lip when taking impression, thereby precisely taking the impression. CONSTITUTION: A dental impression tray includes a tray body(1) and a handle part(2). The tray body includes a coupling convex part on front teeth corresponding to an alveolar bone. The L-shaped handle part includes a coupling part to which the coupling convex part is coupled, and the coupling part is formed at the front end of the L-shaped handle. The coupling convex part as a protrusion is coupled to the coupling part as a hole into which the protrusion is inserted. The coupling convex part is formed into a dovetail-shaped protrusion.
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