More than 7 million Canadians suffer from tooth sensitivity. Enamel that covers the top of your tooth, protecting the root, can wear down from brushing too hard, gum disease, tooth grinding and aging. Your dentist may suggest using desensitizing toothpaste, a soft bristle toothbrush using gentle strokes or an application of resin coating, which will seal the sensitive areas. Sometimes root canal treatment may be required to remove the infected nerve. Tooth sensitivity is often an early sing of minor or major dental problems so it’s important to ask your dentist what the most appropriate treatment would be.