The deciduous teeth storage device contains an openable casing, an upper gum cast, a lower gum cast, and a number of artificial teeth. The gum casts are stored in the casing. Along a gum model of the upper and lower gum casts, there are a number of holes for receiving the artificial teeth and the deciduous teeth, and the upper and lower gum casts are joined along their back edges by a foldable element providing an angle of rotation in-between. The casing contains a lower chamber where a movable drawer is configured for storing adhesives and artificial teeth. A transparent plate is attached to an upper side of the casing, and at least a pair of magnets are correspondingly embedded in the transparent plate and the top side of the casing, respectively, so that a child's photo can be positioned between the casing and the transparent plate.一種乳齒留存裝置，主要由一上排乳齒牙床模型；一下排乳齒牙床模型，上排乳齒牙床模型與下排牙床模型上各設有相對應乳齒之牙孔，且上排乳齒牙床模型與下排乳齒牙床模型於後端形成韌性折板相互連結，使上排乳齒牙床模型與下排牙床模型能相互上下開合；數枚人造乳牙，係於每個牙孔內，裝設相對應乳牙之人造乳牙及一設有盒蓋之盒體所構成，由該盒體包覆保護上、下排乳齒牙床模型，且該盒體可於下層隔出一夾層空間，用以置物，由此可於夾層空間內預先放入乳齒牙根膠，也可置放USB儲存裝置，該盒體上方設置有一透明板片，並於透明板片周圍與盒體設有對應磁塊，以供夾放孩童照片。留存乳牙時，先拔下對應換掉乳牙之人造乳牙，將拔下該人造乳牙空下之牙孔填入乳齒牙根膠，再將換掉的乳牙插入該對應牙孔插緊黏固，得以一一替換插入換掉的乳牙，改進習見未依乳牙於牙床相對位置收納之收集乳齒專用容器缺失，並具有整理排放收納乳牙容易，增添乳齒美觀整體收留紀念者。
