What Makes Teeth Sensitive
One of the most common dental issues around is tooth sensitivity. Enamel loss and gum recession are two fairly common causes of tooth sensitivity. The reason for this is because the layer underneath our enamel, the dentin, becomes exposed. The exposure of dentin is an issue because our dentin contains microscopic tubules that allow stimuli that cause sensitivity to have access to the nerves inside the tooth.
When we have all of our enamel intact, it acts as a protective barrier for these tubules. But if enough enamel has been worn away, this barrier no longer exists. Below the gum line, a material called cementum acts very much like enamel, in that it protects the tooth root. When the cementum wears away, the dentin becomes exposed. If your teeth react to hot or cold beverages, it is likely that either some of your enamel or cementum has worn away.
Other causes of tooth sensitivity can include tooth decay, gum disease, fractured teeth, and worn fillings. It is always a good idea to have your sensitive teeth check out by a dentist, as they will be able to determine the exact cause of your sensitivity.
Sensitive teeth can be treated at home with special toothpaste that has been designed for people with sensitive teeth. Fluoride treatments can also be used to strengthen you teeth, making you less prone to sensitivity. In some instances, dentists will apply a thin layer of dental bonding to patch up the areas where either enamel or cementum has been worn away.
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