What causes sensitive teeth?: Jenni Seaney, Dental Hygienist
There are a variety of causes of sensitivity, and the most common is caused by toothbrush trauma. People brushing their teeth too hard, making the gums recede, exposing dentine, which is much more sensitive than your teeth enamel.
You could be grinding your teeth, again that makes everything a little bit more sensitive, and also having a very acidic diet. Lots of people now eat a lot more fruit, drink fruit juices than ever before, and especially carbonated drinks. Now we look at coke, fizzy drinks. Fizzy water, can be a little bit of an issue sometimes, but they can contribute to sensitivity.