tooth
A layer of enamel is worn away, which exposes the dentin inside. Dentin is loose and has dentinal tubules (leading to nerves), which will cause dentin hypersensitivity diseases. Drinking hot and cold water and eating sweet things will feel very sour, which will cause tooth nerve infection over time.
in time
Tooth nerve inflammation, it is very troublesome to deal with! At that time, more time and money were needed.
Nature is beauty, don't grind it!