Use desensitising toothpaste.
Thanks for writing in.
If you are having sensitivity in all teeth then it can be due to loss of enamel from teeth. It occurs due to vigrous brushing technique or using hard bristles brush.
You need to use desensitizing tooth paste containg potassium nitrate or stannous fluoride
.Leave it for 4 minutes before rinsing.
If it doesn't provide much relieve then you may go for veneering or capping.
Consult your dentist
for further treatment plan.
Hope I answered your query
Dr. Neha Sumra