PROBLEM TO BE SOLVED: To provide an impression tray according to a height of an alveolar ridge of a patient with low costs.SOLUTION: An impression tray 10 includes: a base tray 10A having a bottom part 14 of which side facing a top surface of an alveolar ridge is curved in a concave shape, an alveolar ridge wall part 12 provided along an outer edge of the bottom part 14 and covering a side surface of the alveolar ridge, a low alveolar ridge wall part 12X obtained by lowering a height of a part of the alveolar ridge wall part 12, and a fitting part 40 formed in the low alveolar ridge wall part 12X； and an alveolar ridge height adjustment piece 12A having a fitted part 50 that fits to the fitting part 40 of the low alveolar ridge wall part 12X and forming the alveolar ridge wall part 12.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2020,JPO&INPIT【課題】患者の顎堤の高さに応じた印象用トレーを低コストで提供する。【解決手段】印象用トレー１０は、顎堤の頂面と対面する側が凹状に湾曲した底部１４と、底部１４の外縁に沿って設けられ顎堤の側面を覆う湾曲した顎堤壁部１２と、顎堤壁部１２の一部を低くした低顎堤壁部１２Ｘと、低顎堤壁部１２Ｘに形成された嵌合部４０と、を有するベーストレー１０Ａと、低顎堤壁部１２Ｘの嵌合部４０に嵌合する被嵌合部５０を有し、顎堤壁部１２を形成する顎堤高調整ピース１２Ａと、を備える。【選択図】図５
