| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an impression tray capable of obtaining an impression of upper and lower jaws simultaneously and putting on an impression material sufficiently and stably.SOLUTION: An impression tray (10) for holding an impression material that is inserted to an oral cavity to obtain an impression comprises: an outer frame (21) curving and extending from a side to be disposed on anterior teeth side to a side to be disposed on molar teeth side; an inner frame (22) curving and extending with a predetermined space from the outer frame; a connection part (23) for keeping a positional relation between the outer frame and inner frame, which is composed of a linear member with one end fixed to the outer frame and the other end fixed to the inner frame; a surface material (24) spread over the space between the outer frame and inner frame; and a handle (30) disposed on a surface of a side to be placed on the anterior teeth side of the outer frame. The outer frame is formed in such a way that a portion of the anterior teeth side becomes the highest, and this height is maintained to either a range of 2 mm or more and 15 mm or less toward the molar teeth side.</p> |
