This is a very common problem that I treat quite often. It is caused by the fluoride in the water you grew up drinking. Concentrations of fluoride can cause severe pitting and/or permanent brown to brownish gray stains on teeth. The solution is a cosmetic treatment called veneers which are ultra-thin shells of ceramic material bonded to the front of your teeth.  The wafer-thin veneer results in an aesthetically pleasing naturalness that is unsurpassed by other restorative options. In most cases I can enhance your smile in as little as two appointments.