Where does Tooth Sensitivity come from and How to treat it

When the dentin is exposed, teeth become sensitive. Erosion and gum recession can cause this. Without enamel, teeth roots have thousands of small tubules leading to the pulp. 

These dentinal tubules (or channels) allow signals from hot, cold, or sweet food to reach your tooth nerve, causing pain. Dental sensitivity might indicate cavities, gum disease, or a damaged tooth.

Possible causes of tooth sensitivity

Many factors can cause sensitive teeth, including:

  • Brushing too hard: Brushing too hard or using a firm-bristled toothbrush can damage enamel and reveal dentin over time. It can also cause gum recession.
  • Gum recession: Genetic susceptibility to thin gum tissue. Other people get gum recession from periodontal disease. Gum recession exposed dental roots by pulling gum tissue away.
  • Gum disease: Inflammation and painful gum tissue can induce sensitivity due to the loss of supporting ligaments, exposing the root surface and nerve of the tooth.
  • Cracked teeth: Chipped or damaged teeth can allow bacteria from plaque to enter the pulp, causing discomfort.
  • Teeth grinding: Grinding or clenching teeth can damage enamel and exposed dentin.
  • Teeth whitening products: Teeth whitening products are a main cause of tooth sensitivity. Consult a dentist in Phoenix about sensitive teeth whitening to brighten your smile.
  • Age: Teeth sensitivity peaks between 25-30 years old.
  • Plaque buildup:  Plaque buildup on root surfaces might cause irritation.
  • Mouthwash use: Over-the-counter mouthwashes may increase teeth sensitivity if dentin is exposed. Acids destroy tooth dentin. Ask your dentist about neutral fluoride for dentin sensitivity.
  • Acidic foods:  High acidic foods, like citrus fruits, tomatoes, pickles, and tea, can cause enamel erosion if consumed regularly.
  • Recent dental procedures: Recent dental procedures might cause sensitive teeth following fillings, cleanings, and restorations. Dental operations usually produce transient sensitivity that lasts four to six weeks.

Sensitive tooth or infection?

Not always. Teeth sensitivity may be a gum recession or tooth erosion. It could also indicate a fractured or diseased tooth. Teeth infection pain might be achy or severe and throbbing. 

Both of these conditions may worsen if you don’t call a dentist in Phoenix. Professional dentists help you with different treatment options, such as fluoride treatments, desensitizing toothpaste, and suggestions on preventive measures.

Treatment for tooth sensitivity

Cause determines treatment. You should definitely take emergency dental care if you have persistent tooth sensitivity or pain. They must rule out significant conditions before prescribing treatment.

You can lower your risk of dental sensitivity from normal wear and tear:

  • Use desensitizing toothpaste: Various types are available for sensitive teeth. Regular use should reduce sensitivity. It may take numerous brands to find the right one. Another tip: Apply a small layer of toothpaste to exposed tooth roots with a finger or Q-tip before bed. Use fluoridated toothpaste.
  • Maintain good oral hygiene: Maintain good oral hygiene by brushing and flossing regularly to clean all areas of your mouth and teeth.
  • Use a soft-bristled toothbrush: Use a soft-bristled toothbrush to reduce tooth abrasion and gum discomfort.
  • Watch what you eat:  Avoid eating acidic foods since they can disintegrate tooth enamel and exposed dentin. They can also increase sensitivity and cause pain.
  • Use fluoride dental products: Daily mouthwash can reduce sensitivity. Discuss home-use products with your dentist.
  • Avoid teeth grinding: Use a mouth guard at night to prevent teeth grinding.

Moreover, if you still have tooth sensitivity then it is an ideal option to consult an expert emergency dentist in Phoenix. These professionals use below dental procedures to reduce sensitivity:

  • Covering exposed root surfaces with dental bonding.
  • Apply fluoride varnishes to exposed roots.
  • Apply dentin sealers to exposed root surfaces.


Tooth sensitivity is a frequent dental issue that can lower quality of life. However, identifying the causes and using appropriate treatments can reduce sensitivity and improve dental health. 

Addressing the cause of sensitivity and taking preventative steps can give people a pain-free smile for years. Regular dental checkups and preventative urgent dental care prevent tooth sensitivity and ensure a healthy smile for life.