The inexpensive and conservative way to treat that annoying sensitive spot is with the use of a dental laser. Just a few minutes with a laser waved over that sensitive area will diminish or eliminate that source of discomfort for a couple of years in most cases. The effects are immediate, and no anesthesia is necessary. When applied to the dentin and pulp the laser suppresses the potential of the nerve fibres by eliminating the tubules. It is felt that laser treatment reduces sensitivity by coagulation of protein without altering the surface of the dentin. Laser desensitization can give an immediate relief from sensitive teeth and can be done without any anesthesia.