exhort.ga Tooth sensitivity can range from mild irritation that occurs when one eats or drinks hot, cold or sweet foods and beverages to chronic, constant pain that is always there regardless of what you eat or drink. Most patients think sensitive teeth are the result of tooth decay and can come up when one neglects his or her oral health. Visiting good dentistry is essential to get good oral health. There are many causes to one getting sensitive teeth. What is Tooth Enamel? Tooth enamel is the hard, translucent outer covering of each tooth. It gives teeth the strength to withstand constant, demanding use when eating, biting, chewing, clenching and grinding. It also protects the inside of the tooth from getting penetrated with germs and bacteria. While one's natural teeth do get worn down as one reached advanced years from the many years of wear and tear, it is the enamel that prolongs the life and usefulness of teeth despite the many years of use and abuse teeth get.