There are ways to deal with sensitive teeth. Presently several leading toothpaste brands in the market are geared to address sensitive teeth. When looking for these, check the boxes of the toothpastes to see if it addresses teeth sensitivity.
One brand that dentists recommend is Sensodyne, but other brands can be very effective, too.
The common ingredient in toothpastes for sensitive teeth is potassium nitrate. In essence, the nerve of the tooth responds and the feeling of pain is inhibited.
Another way to address sensitive teeth is to use a mouthwash that contains fluoride – without any alcohol.
If, despite the use of a good mouthwash and toothpaste the pain continues, consult your dentist for other options.