Tooth Sensitivity: Causes, Treatments, and Prevention

Do you feel a sharp zing when sipping hot coffee or biting into ice cream? If so, you're not alone. Tooth sensitivity is a common condition that affects millions — and fortunately, it can be treated and even prevented.

In this blog, we’ll explain what causes tooth sensitivity, how to treat it, and what you can do to protect your teeth from future discomfort.

What Is Tooth Sensitivity?

Tooth sensitivity (also called dentin hypersensitivity) occurs when the protective enamel on your teeth wears down or when gums recede, exposing the underlying dentin. This dentin contains microscopic tubules that lead to nerve endings — which react to temperature, pressure, or sweetness.

Common Causes of Tooth Sensitivity

🦷 Enamel Erosion

  • Caused by acidic foods, stomach acid (reflux), or aggressive brushing.

  • Once enamel wears away, the dentin becomes exposed.

🦷 Gum Recession

  • Common in people with gum disease or those who brush too hard.

  • Exposes tooth roots that aren’t protected by enamel.

🦷 Cracked or Chipped Teeth

  • Damage can expose the tooth’s inner layers, leading to pain.

🦷 Tooth Whitening Products

  • Bleaching agents can irritate the nerves in your teeth temporarily.

🦷 Dental Procedures

  • Sensitivity after fillings, crowns, or cleanings is normal — but usually fades within days or weeks.

How to Treat Tooth Sensitivity

Desensitizing Toothpaste

  • Contains ingredients like potassium nitrate or stannous fluoride.

  • Helps block pain signals to the nerve over time.

Fluoride Treatments

  • Strengthens enamel and reduces sensitivity.

  • Available in-office or as prescription rinses.

Bonding or Sealants

  • Applied by dentists to cover exposed root surfaces.

Gum Grafting

  • In severe cases of recession, gum surgery may be needed to protect the root.

Night Guard

  • If grinding (bruxism) is the cause, a custom night guard can reduce enamel wear.

How to Prevent Sensitivity

  • 🪥 Use a soft-bristled toothbrush and gentle pressure

  • 🧴 Avoid acidic drinks and foods (like soda, citrus, vinegar)

  • ⏰ Wait 30 minutes after eating before brushing

  • 🛡️ Use fluoride toothpaste regularly

  • 🦷 Visit your dentist for early gum disease treatment

When to See a Dentist

Tooth sensitivity should not be ignored — especially if it:

  • Comes on suddenly

  • Affects one tooth only

  • Is sharp, lingering, or painful to chew

It may indicate a cavity, cracked tooth, or worn dental work that needs attention.

Sick of the zings and zaps?
Book a dental appointment today and find long-lasting relief from sensitivity.