Tooth sensitivity, also known as dentinal sensitivity has been identified as a very common problem. Approximately one out of every four adults has one or more sensitive teeth and although once believed to affect mostly older adults, this sensitivity is now being experienced in patients of all ages.
Sensitivity can be described as a short sharp pain triggered by a stimulus such as cold or hot foods/beverages, sweet, sour, or acidic foods and even brushing and flossing
People at the highest risk of dentinal sensitivity are the aggressive brushers. These people strip the gum tissue away and remove the underlying layer of the tooth root surface (the cementum). Because the cementum is very thin, it doesn't take much pressure to wear away this surface and expose the inner substance, dentin.
Dentin contains numerous tubules (tiny tubes) filled with fluid that extend from the pulp chamber in the center of the tooth to the outer surface of the tooth. The pulp chamber houses the nerves that signal the pain response. So when a stimulus such as cold air or drink comes into contact with the open and exposed tubule on the outside of the tooth, it creates a pressure change in the fluid in the tubules. This pressure change then triggers the nerves in the pulp chamber, resulting in a short, sharp pain response, known as tooth sensitivity.
Prevention begins with minimizing the risk of exposing dentinal tubules by brushing gently and using a toothbrush that will be soft on your teeth and gums.
Because of its gentle cleaning action, Sonicare toothbrush is ideal for patients who have sensitive teeth. With extra-soft, nylon bristles and an extra-wide sweeping motion, it is clinically proven to be gentle yet effective at removing bacteria and keeping your mouth clean and healthy even if your teeth are sensitive.
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