What Causes Tooth Sensitivity?

By June 26, 2017Services

Teeth Overly Sensitive - Visit Genesis DentalTooth sensitivity is something that affects a number of people. It is often caused by eating or drinking something hot, cold, sweet or acidic. Under normal conditions, the underlying dentin of the tooth (the layer that immediately surrounds the nerve) is covered by the enamel in the tooth crown, and the gums that surround the tooth. Over time, the enamel covering can get thinner, thus providing less protection. The gums can also recede over time, exposing the underlying root surface dentin.

The dentin contains a large numbers of pores or tubes that run from the outside of the tooth to the nerve in the center. When the dentin is exposed, these tubes can be stimulated by changes in temperature or certain foods. Here is an image of what the dentin tubes look like under the microscope:

What causes it?

Exposure of the dentin can occur due to a number of factors. In addition, some dental treatments can cause sensitivity. Treatments such as such as teeth whitening, professional dental cleanings, having braces put on or getting a filling placed have been known to cause sensitivity during or after the procedure.

What can I do about it?

The first step in doing something about dental sensitivity is to find out what the cause is – a dental professional can help you with this. If the sensitivity is due to exposed dentin, there are a number of steps you can take, as can your dental professional, to help reduce the sensitivity. These can include:

  • Using a very soft bristle toothbrush
  • Brushing correctly to help prevent abrasion of the enamel and recession of the gums
  • Using a toothpaste specially formulated to help reduce sensitivity
  • The dental professional can:
  • Apply a fluoride varnish on the sensitive areas to help strengthen the tooth
  • Prescribe a high fluoride toothpaste to use every day
  • Place a dental restoration to build up the areas that have lost enamel

In the end, whether you need an in-office procedure or over-the-counter products, the most important step is to see a dental professional so that he or she can determine the cause of the tooth sensitivity and help you find a solution that will work.

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