My tooth are sensitive it has cavity problem also. I cant take normal water and hot tea. Few years ago one teeth was broken automatically.

Question

You may have sensitive teeth, the possible causes of which include:
Tooth decay (cavities)
Fractured teeth
Worn fillings
Gum disease
Worn tooth enamel
Exposed tooth root
It is a very common finding among both young as well as adult patients and is very much treatable. So do not worry. Usually desensitizing gels and mouthwashes are prescribed to treat this condition. However, in case of no response, we suspect conditions such as gum recession and deep cavities. 
I suggest that you consult me privately on lybrate so that I can provide you with more specific answers, and send across an appropriate prescription to tackle your sensitivity.

Sakshi Sharma · Accepted Answer

You may have sensitive teeth, the possible causes of which include:
Tooth decay (cavities)
Fractured teeth
Worn fillings
Gum disease
Worn tooth enamel
Exposed tooth root
It is a very common finding among both young as well as adult patients and is very much treatable. So do not worry. Usually desensitizing gels and mouthwashes are prescribed to treat this condition. However, in case of no response, we suspect conditions such as gum recession and deep cavities. 
I suggest that you consult me privately on lybrate so that I can provide you with more specific answers, and send across an appropriate prescription to tackle your sensitivity.

Puja Bansal · Answer

Hello, you can use any sensitive toothpaste to relieve sensitivity. Get it checked from a dentist, if there are any open dentinal tubules get it covered.