Tooth sensitivity occurs when protective enamel wears away, exposing microscopic tubules in the underlying dentin. In India, it is most commonly caused by aggressive brushing with hard bristles, gum recession, acidic diet, or early tooth decay. Desensitising toothpastes (potassium nitrate) relieve mild sensitivity, while in-office fluoride varnishes and bonding treat deeper wear.
Desensitising Paste (₹120–₹250)
In-Clinic Fluoride / Bonding (₹500–₹1,500)
Possible Root Canal Needed
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1. The 6 Main Causes of Sensitive Teeth in India
- Aggressive Brushing (Hard Bristles): Using stiff bristles and sawing back and forth wears notches (abfraction / cervical abrasion) into the enamel near your gumline.
- Gum Recession (Gingivitis): Periodontal disease pulls gums away from teeth, exposing porous root cementum.
- Acidic Foods & Masalas: High intake of citrus fruits, tamarind (imli), carbonated colas, and spicy curries slowly erodes enamel crystals.
- Night Teeth Grinding (Bruxism): Unconscious stress grinding wears down chewing surfaces and exposes yellow dentin.
- Cavities & Leaky Old Fillings: Bacteria penetrating towards the nerve pulp trigger sharp sensitivity to sweets and hot/cold liquids.
- Recent Dental Work: Mild sensitivity for 3 to 7 days after a deep cleaning or new filling is normal and temporary.
2. Home Remedies vs. In-Clinic Professional Treatments
| Treatment | How It Works | Cost (₹) | Effectiveness |
|---|---|---|---|
| Potassium Nitrate Toothpaste | Calms the nerve transmission inside dentinal tubules | ₹150 – ₹280 | High for mild sensitivity (takes 2 weeks of use) |
| Ultra-Soft Toothbrush + Gentle Technique | Prevents further mechanical enamel loss | ₹80 – ₹180 | Essential preventive measure |
| In-Office Fluoride Varnish | Precipitates minerals into open tubules | ₹500 – ₹1,200 | Instant relief lasting 3 to 6 months |
| Composite Resin Bonding | Physically covers eroded notches near gums | ₹1,000 – ₹2,500 / tooth | Permanent physical barrier over exposed dentin |
3. The 10-Second Rule: When Sensitivity Becomes an Emergency
If sensitivity to cold water vanishes within 1 to 2 seconds after swallowing, your nerve is healthy. However, if a sharp, throbbing ache lingers for more than 10 to 30 seconds, your dental nerve is suffering from irreversible pulpitis. This indicates deep bacterial decay that requires a root canal rather than sensitive toothpaste.
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Frequently Asked Questions (FAQs)
How do I use desensitising toothpaste correctly?
Apply a pea-sized amount on an ultra-soft brush. Spit out after brushing, but do not rinse vigorously with water immediately. For intense spots, dab a tiny bit of paste directly onto the tooth with your finger before sleeping.
Can salt water rinse reduce tooth sensitivity?
Warm salt water reduces gum inflammation, but will not desensitise exposed dentinal tubules. Use a remineralising toothpaste containing fluoride or NovaMin.