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Certain everyday activities like brushing your teeth, eating, and drinking can cause severe pain if you have sensitive teeth. The most frequent causes are the wear of the tooth enamel or the exposure of the roots of the teeth. In this post you will learn what it is, what its main causes are, how we can prevent it and what a dentist can do for us.

The teeth and their layers

Teeth are made up of three layers:

1- Enamel is the outer layer and the hardest.

2- Dentin is the core of the tooth and contains millions of small holes.

3- The pulp is the deepest part of the tooth and the nerves are found there.

sensibilidad dental

What is tooth sensitivity?

Dental hypersensitivity occurs when we lose the natural protection of dentin and this is exposed by unprotecting millions of microscopic tubes called dentin tubules, which in turn, connect the external part of the tooth with the nerve endings that are responsible for causing us the sensation of pain.

Most common causes of tooth sensitivity

Oral hygiene

For good oral hygiene, brushing with excessive force can lead to gingival recession, cervical abrasion and opening of the dentin tubules. We must also take into account the time of brushing because if it is done just before or after having consumed acidic foods or drinks, the wear of the enamel and cement can be greater. Poor oral hygiene can lead to a build-up of plaque that can destroy enamel and cementum.

Acidic foods and drinks

Foods with a low Ph contribute to the erosion of enamel and cement. Some of these are citrus fruits, yogurt, wine, and most soft drinks.

Dental treatments

Some dental treatments such as periodontal surgery or root scaling can cause a slight removal of cement and an apical displacement of the gingival margin, which can become a gingival recession.


People with bruxism have wear, incisal fractures, and occlusal fractures. The grinding of the teeth causes their flexion at the cervical level and the loss of the crystals that compose it, thus allowing the contact of the dentin with the oral environment.

General illnesses

The pathologies that cause acids in the mouth and that, therefore, produce greater dental erosion can lead to tooth sensitivity.


During pregnancy, hormonal and blood flow changes take place that make the body more defenseless against infections in the teeth and gums.


After performing a filling, it is common for the nerve of the tooth to suffer slight irritation. This causes the effects of tooth sensitivity. Usually the effects can last between 15 and 30 days, since the filling requires a process of adaptation. If after this time the patient continues to feel sensitive teeth, we recommend going to the dentist as soon as possible.


dientes sensibles

How to treat sensitivity at home

Currently we know several habits that will help us and that we can do from home at no cost, below we will show you the most useful and simple:

  1. Brush your teeth twice a day to avoid periodontal diseases
  2. Correctly clean all parts of the mouth.
  3. Use a brush with soft filaments, if possible, electric to protect the enamel.
  4. Avoid aggressive brushing.
  5. Use dental floss.
  6. Avoid acidic foods and drinks.

Use toothpaste designed to protect teeth from sensitivity.

How we can help you at Sermadent Clinic

The dentist will identify the cause of your dental pain and depending on the reason for it, he or she may recommend the following:

Desensitizing toothpaste

Ask your dentist what product you need for your particular case. After several applications, it will help combat pain caused by tooth sensitivity

Apply fluoride to sensitive areas

The dentist can strengthen tooth enamel and reduce pain by applying fluoride to the most sensitive areas. This can also be used from home using a custom tray.

Surgical gum graft

In the event that the root of the tooth has lost gingival tissue, a small amount of this tissue that we obtain from another part of the mouth can be used. With this we will be able to protect the exposed roots and reduce sensitivity.

Root canal

If hypersensitivity causes severe damage and other treatments are not effective, the dentist may choose to perform root canal treatment to treat soft core tooth problems.

Desensitization or adhesion

Another way to treat exposed root surfaces can be reinforced with adhesive resin. There is a possibility that a local anesthetic is required.
These are some of the solutions that we can offer at Sermadent clinics since we have the right equipment to start your treatment against tooth sensitivity. Contact us through our email or phone to request an appointment.

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