I think I found a cheap remedy to tooth sensitivity. Does your teeth hurt from eating chocolate, ice cream, drinking cold water or biting on your teeth? If yes then try this, Drink a tot full of the local gin popularly known as ogogoro or Sapele water or any gin or whiskey you can lay your hands on. Gargle it and allow it stay in your mouth for at least 15-30min or as long as you can. Allow it touch the affected parts of your teeth. Although, in no time you will start feeling the burning sensation of the alcohol on your gums but trust me when you are done, for the next 1 week plus you won't have to worry about your teeth sensitivity. I have been using it and it works, although it's not a permanent solution but it will last for at least over a week before the symptoms reoccur. These are the known causes of teeth sensitivity "Gum recession can leave sections of the tooth exposed and unprotected, also causing sensitivity. Tooth decay,broken teeth, chipped teeth, and worn-down fillings or crowns can leave the dentin of the tooth exposed, causing sensitivity.