A deciduous teeth storage device 1 contains an openable casing 10 housing an upper gum cast 20 and a lower gum cast 30 with holes 21,22,23 into which are inserted a number of artificial teeth 80,81 and deciduous teeth. The upper and lower gum casts 20,30 are hinged 14 together along their back edges. The casing contains a hinged cover 13, a box 11 with an indentation 18 for receiving the lower gum cast 30 and a lower chamber 15 in which a movable drawer 16 is provided, such as for storing adhesives and artificial teeth. A photograph may be positioned under a transparent plate 82 attached to an upper side of the casing by magnets.