What are the causes of sensitive teeth?
There could be various reasons for loss of enamel and dentin like excessive brushing, eating betel nut, chewing excessive bone, bruxism (uncontrolled grinding of teeth at night time), smoking pipe, Using tooth powder excessively for cleaning teeth to name a few. One should alter his oral habits in order to stop this damage.
Is there any immediate way to get relief from sensitivity?
Yes, low-level laser therapy is used to give instant relief from severe sensitivity.