What Causes Tooth Sensitivity and How to Treat It

Do you wince when sipping hot coffee or cringe with every bite of ice cream? If so, you’re not alone. Tooth sensitivity is one of the most common dental complaints we hear at Chattanooga Dental Home and the good news is, it’s also one of the most treatable.
Let’s break down what causes that sharp zinger of pain and how to finally get relief.

What Is Tooth Sensitivity?

Tooth sensitivity happens when the protective layers of your teeth like enamel or gum tissue wear down, exposing the sensitive dentin underneath. This layer connects directly to the nerves inside your teeth, which is why cold air, sweets, or even brushing can suddenly feel like a lightning bolt.

Common Causes of Tooth Sensitivity

  1. Receding Gums 
    • Often due to gum disease or aggressive brushing 
    • Exposes tooth roots, which aren’t protected by enamel 
  2. Enamel Erosion 
    • Caused by acidic foods, grinding, or brushing too hard 
    • Leaves the tooth’s inner layer exposed 
  3. Tooth Decay or Cracked Teeth 
    • Cavities and cracks can reach the dentin or nerve, triggering pain 
  4. Recent Dental Work 
    • Whitening, cleanings, or fillings can temporarily irritate the nerve 
  5. Bruxism (Teeth Grinding) 
    • Wears down enamel and causes microscopic fractures
 

How to Treat Tooth Sensitivity

Here’s how we help patients at Chattanooga Dental Home find lasting relief:

  1. Use a Sensitivity Toothpaste
    Desensitizing toothpaste (like Sensodyne) helps block pain signals from the tooth surface to the nerve. Use it twice daily for 2–4 weeks for best results.
  2. Apply Fluoride Treatments
    We offer in-office fluoride varnishes that strengthen enamel and reduce sensitivity over time.
  3. Treat Underlying Issues
    If gum recession, decay, or a cracked filling is causing the pain, we’ll address the root problem directly whether that means a deep cleaning, filling, or crown.
  4. Consider a Night Guard
    If you grind your teeth at night, a custom guard can protect your enamel and relieve sensitivity.

Gentle Care at Chattanooga Dental Home

Tooth sensitivity doesn’t have to disrupt your life. At Chattanooga Dental Home, we take a comfort-first approach to identify the cause and customize a treatment that actually works whether that’s something simple like a fluoride gel or a full restoration.

Ready to stop the zingers? Call us at 423-624-1313

Let’s get your smile back to pain-free, one sip at a time.

Book your Dental Appointment!

Simply reserve a time slot, walk in at the appointed time and get prioritized treatments at no extra cost.

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