Tooth Sensitivity

Ouch! Tooth sensitivity can cause mild to severe tooth pain with cold or hot foods and beverages, cold air, or sweets. In fact, one of the most common complaints we receive from our patients is tooth sensitivity. Although cavities are often the cause, they are not the most frequent and definitely not the only cause.

The tooth itself has nerve endings just like any other part of your body. Although teeth are hard and strong, able to chew and tear the toughest foods for many years, they have a sensitive core that is full of nerve endings. Anything that disrupts or wears down the protective cover will expose the nerve endings and causes tooth sensitivity. Especially vulnerable is the root portion of the tooth, next to the gum. It has a thin mineral layer protecting thousands of tiny tubules leading to your tooth's center where the nerve is. These tubules (or channels) allow sensation— for example, hot, cold or sweet food — to reach the nerve in the tooth. This can result in pain. If gums have receded, exposing more root surface and the thin protective layer is worn down, more tooth sensitivity will occur.

Causes of tooth sensitivity

The outer shell of the tooth is a hard enamel layer. Under this is a slightly softer more porous dentin layer that covers the nerve core (pulp) of the tooth and contains the many fine tubules where nerve endings are located. These layers can be destroyed or weakened by the following resulting in more nerve endings being exposed and therefore more sensitivity or pain.

In general anything that causes mechanical wear or chemical erosion (acid attack) will cause tooth sensitivity. One of the most common causes of tooth sensitivity is aggressive brushing technique. Any toothbrush, manual, battery operated or electric has the potential to scrub too hard and damage teeth if pressing too hard. Aim for softer bristles when looking for a toothbrush either manual or electric and avoid pressing too hard when brushing.

Helpful suggestions to help prevent or reduce tooth sensitivity

Tooth sensitivity is very common and can be uncomfortable. Try some of the above simple solutions and don't forget to ask for guidance.

TO LEARN MORE, CONTACT OUR RICHMOND HILL DENTIST TODAY.