What causes tooth sensitivity? Tooth sensitivity may be caused by many factors including worn or chipped enamel, receded gums and gum disease, decay/cavities, clenching and grinding, cracks and infected or abscessed roots. Sometimes the sensitivity can be exacerbated by hot or cold liquids and foods, acidic foods sweets, chewing and even certain toothpaste. Tooth sensitivity can often be treated effectively but it is essential to first determine the underlying cause. If you are experiencing tooth sensitivity we would be glad to take a look and help you determine the cause and the best method of treatment.