If the dreamer dreams of aching teeth, this could be a warning of future health problems, possibly involving the teeth but not necessarily. White and beautiful teeth, on the contrary, portend health and happiness.
Broken or decayed teeth imply the need for repair in some department of the dreamer’s life. Look to other symbols in the dream to judge which one.
Dreaming of brushing your teeth implies making major and positive changes in your life. Astrological parallel: Saturn
What Does Teeth Mean In Dream?