Sensitive Teeth? Causes and Solutions for Relief

Written By Herbert Birnbaum

Do you wince when sipping hot coffee, enjoying ice cream, or even breathing in cold air? If so, you may be one of the millions of people who struggle with sensitive teeth. While tooth sensitivity is common, it’s not something you have to live with. Understanding the causes and knowing your options for relief can make a big difference in your daily comfort.

What Causes Tooth Sensitivity?

Tooth sensitivity happens when the inner layer of your teeth, called dentin, becomes exposed. Dentin contains tiny tubules that connect to the tooth’s nerves. When exposed to heat, cold, sweetness, or acidity, the sensation travels directly to the nerves, resulting in that sharp “zing” of discomfort.

Some common causes include:

  • Enamel erosion – Over time, acidic foods, drinks, or aggressive brushing can wear away enamel.

  • Receding gums – Gum disease or hard brushing can cause gums to pull back, exposing the roots.

  • Tooth decay – Cavities can open pathways to the nerves inside your teeth.

  • Worn or damaged fillings – Old dental work can weaken, leaving sensitive areas exposed.

  • Teeth grinding (bruxism) – Grinding wears down enamel, making teeth more vulnerable.

  • Dental procedures – Whitening treatments or cleanings may cause temporary sensitivity.

Solutions for Relief

The good news is that tooth sensitivity is treatable. Here are some effective ways to manage and reduce discomfort:

1. Switch to a Sensitivity Toothpaste

Specialized toothpaste (like Sensodyne, Colgate Sensitive, or Crest Gum & Sensitivity) contains ingredients such as potassium nitrate or stannous fluoride, which calm the nerves inside teeth and help protect enamel. Use consistently for best results.

2. Use a Soft-Bristled Toothbrush

Brushing too hard or with stiff bristles can damage enamel and gums. A soft-bristled brush (manual or electric) paired with gentle strokes can prevent further wear.

3. Strengthen Teeth with Fluoride

Fluoride rinses or gels help remineralize enamel and reduce sensitivity. Many dentists also offer in-office fluoride varnish treatments for extra protection.

4. Avoid Trigger Foods and Habits

Cutting back on acidic foods (citrus, soda, wine) and avoiding excessive teeth whitening can reduce irritation. If you grind your teeth at night, ask your dentist about a custom night guard.

5. Professional Treatments

If sensitivity is very severe, Dr. Birnbaum may recommend:

  • Bonding or sealants to cover exposed dentin

  • Gum grafting to restore lost gum tissue

  • Root canal therapy in cases of extreme nerve sensitivity

Tooth sensitivity is a sign that your teeth or gums may need extra care. While switching toothpaste or adjusting your routine can help, persistent or severe sensitivity should always be evaluated by Dr. Birnbaum. With the right treatment plan, you can get back to enjoying your favorite foods and drinks - without the wince.

Contact Dr. Birnbaum today at (617) 965-1400 or book your appointment for your professional dental checkup or cleaning today.

Herbert Birnbaum
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