Do your teeth twinge when you sip hot coffee or bite into something cold? You’re not alone — tooth sensitivity is one of the most common dental complaints among Canadians.
The good news? Most causes of sensitive teeth are treatable, especially when diagnosed early. Here’s what you need to know about why your teeth might be feeling sensitive and how your dentist can help.
🦷 What Is Tooth Sensitivity?
Tooth sensitivity (also called dentin hypersensitivity) is pain or discomfort that occurs when:
- Eating or drinking something hot, cold, sweet, or acidic
- Brushing or flossing
- Breathing in cold air
- Touching the tooth with a toothbrush or utensil
The pain is usually sharp, sudden, and localized — but the underlying cause can vary.
Common Causes of Sensitive Teeth
- 🦷 1. Worn Enamel: Enamel wears down from brushing too hard, grinding, or acidic foods — exposing the softer dentin underneath.
- 🦷 2. Receding Gums: Gum recession can expose tooth roots, which are more sensitive to temperature and pressure.
- 🦷 3. Tooth Decay or Cavities: Cavities break through enamel and expose inner layers, often triggering pain.
- 🦷 4. Cracked or Chipped Teeth: Cracks can reach the sensitive inner pulp and cause discomfort.
- 🦷 5. Worn Fillings or Dental Work: Old restorations may shrink, loosen, or crack over time, exposing sensitive tooth surfaces.
- 🦷 6. Teeth Grinding (Bruxism): Clenching and grinding, especially at night, wears down enamel and can cause sensitivity.
- 🦷 7. Post-Dental Treatment Sensitivity: Temporary discomfort is common after dental work and usually fades within a few days.
Less Common But Possible Causes
- Acid reflux or frequent vomiting (from GERD or eating disorders)
- Overuse of whitening products
- Vitamin or mineral deficiencies
- Medical conditions or medications that affect saliva or enamel
✅ What to Do If You Have Sensitive Teeth
- Use a Toothpaste for Sensitive Teeth: Choose products with potassium nitrate or stannous fluoride to calm nerves and protect enamel.
- Switch to a Soft-Bristled Toothbrush: Brush gently to avoid damaging gums and enamel.
- Avoid Acidic Foods and Drinks: Rinse with water after consuming citrus, soda, or vinegar-based items.
- Avoid Whitening Products: These can be abrasive and worsen sensitivity.
- Wear a Night Guard: If you grind your teeth, a custom night guard can protect enamel and reduce pain.
🦷 When to See a Dentist
Book a dental visit if:
- Sensitivity doesn’t improve with over-the-counter products
- The pain is getting worse
- You notice a crack, hole, or visible damage
- You have swelling or signs of infection
Your dentist may recommend:
- Fluoride treatments
- Dental bonding to cover exposed roots
- Gum therapy if gum disease is present
- Restorations or fillings for damaged or decayed teeth
💡 Final Thoughts
Tooth sensitivity may be common — but it’s not something you have to live with. In most cases, the right combination of home care and professional treatment can reduce or eliminate discomfort completely.
Tired of flinching every time you sip something cold? Let’s find the cause.
Book your consultation today and let our team provide gentle, expert care to help you eat, drink, and smile with comfort again.