False teeth are read as a front you put on, or as worry about ageing and appearance. Losing them in a dream points to fear of being exposed. Dentures that do not fit suggest saying things that do not feel like your own words. Seeing someone else take out their dentures is read as glimpsing them without their usual mask. Dream books also link the image to confidence that leans on outside support.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.