Hi there ..it can be due to 2 reasons...first is sensitivity and second is deep cavities....
In either of the case ....visit a nearby dentist and get it diagnosed properly and accordingly plan for the treatment...
Take care ...!!
Hello, Sensitivity mild or severe to either cold or hot may be an indication of a cavity or decay of any one or multiple teeth. Other reason of sharp sensitivity can be a fractured or cracked tooth. Therefore You are advised to Visit a dentist at the earliest for a proper diagnosis and treatment.
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