What Causes Tooth Sensitivity and How to Treat It? | Causes & Solutions

😖 Why Do My Teeth Hurt When I Eat or Drink?

If you’ve ever felt a sharp, sudden pain after drinking something hot, cold, sweet, or acidic, you’re experiencing tooth sensitivity. This common dental issue affects millions and can make daily life uncomfortable.

But what exactly causes sensitive teeth, and how can you treat it?

🦷 Top Causes of Tooth Sensitivity

1. Enamel Erosion

Your teeth are protected by enamel—the hardest substance in your body. When enamel wears down from acidic foods, aggressive brushing, or grinding, the underlying dentin is exposed. This dentin has tiny tubules leading to nerve endings, causing pain when triggered.

2. Gum Recession

When gums pull back from the teeth (often due to gum disease or brushing too hard), the tooth roots become exposed. Unlike enamel, tooth roots are not protected and can cause sensitivity.

3. Tooth Decay or Cavities

Cavities expose dentin or even the tooth pulp, causing sensitivity and pain. Untreated decay can lead to more serious infections.

4. Cracked or Damaged Teeth

Cracks in teeth from injury or biting hard objects allow stimuli to reach nerves inside the tooth, triggering pain.

5. Recent Dental Treatments

Sometimes, treatments like teeth whitening, fillings, or cleanings cause temporary sensitivity as the teeth adjust.

How to Treat Tooth Sensitivity

🪥 1. Use Desensitizing Toothpaste

Special toothpaste blocks pain signals from the tooth surface to the nerve. Use it consistently—results usually appear within weeks.

🛡️ 2. Modify Brushing Habits

Use a soft-bristled toothbrush and avoid aggressive brushing. Try gentle circular motions and don’t brush immediately after acidic foods.

🦷 3. Visit Your Dentist for Professional Care

Your dentist can:

  • Apply fluoride varnishes to strengthen enamel

  • Use bonding agents or sealants to cover exposed roots or cracks

  • Recommend treatments like dental crowns or root canals if needed

🍋 4. Avoid Acidic Foods and Drinks

Limit citrus, soda, wine, and other acidic foods that erode enamel. Drink through a straw to reduce contact with teeth.

💧 5. Maintain Good Oral Hygiene

Brushing twice daily, flossing, and regular check-ups keep your gums healthy and prevent problems that cause sensitivity.

🔍 When Should You See a Dentist?

If sensitivity:

  • Persists longer than 2 weeks

  • Is severe or worsening

  • Is accompanied by swelling, bleeding, or pain at rest

It could signal underlying dental problems needing professional treatment.

👩‍⚕️ Our Advice from Pain Free Dentist Sydney

Tooth sensitivity is common but manageable. Early attention can prevent discomfort and protect your smile for the long term.

📞 Book a Consultation Today

If you’re struggling with tooth sensitivity, contact Pain Free Dentist Sydney for a tailored treatment plan.

📍 G1a, 570 New Canterbury Road, Hurlstone Park NSW
📞 (02) 9558 8988
📧 info@painfreedentistsydney.com.au