People have dreams like this and want to know if they are still normal for having dreamed of something so horrifying ad they use the experience of looking up that information to help validate their existence, and the meaning behind their dreams.
Dreaming of decay means that you are starting to seriously consider what will one day happen to you when you die. You are starting to think about mortality in general and the fact that all things eventually get older and grow to die. The fortunate side to this is that this line of thought helps you come to terms with death and with decay eventually. This kind of dream does not necessarily mean that you need to worry about death or decay any time soon but it does mean that you have been thinking about it recently, it is just something that has been on your mind, and that’s a fact.
Dreaming about decaying teeth means that you feel a little bit useless. Teeth are the things that we use to chew are food and as useless as they might seem at first or as little attention as you pay to them, if you spend a lot of time after having a tooth removed or if you can remember losing a tooth fairly early as a child, then you should be able to remember what it felt like to be missing a tooth, they are quite important and they are much more useful than they might seem at first. If you have a dream about decaying teeth, you feel a bit helpless and useless.