No, modern root canal treatment does not hurt. With high-potency local anaesthetics (such as 4% Articaine and 2% Lignocaine), the tooth and surrounding nerves are completely numbed during the procedure. Root canal therapy actually relieves the severe throbbing toothache caused by pulp infection.
0 to 1 out of 10
2 to 3 out of 10 (Mild)
95% – 98%
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1. Why the Myth of ‘Painful Root Canals’ Persists
Decades ago, before the invention of digital apex locators, rotary flexible nickel-titanium files, and modern nerve-blocking anaesthetics, dental procedures were uncomfortable. Today, the pain people associate with a root canal is actually the pain of the untreated infected nerve that drives them to the dentist in the first place.
2. How Modern Dentists Guarantee Painless Treatment
- Topical Numbing Gel: A fruit-flavoured anaesthetic gel is applied to your gums before the injection, so you barely feel the tiny needle prick.
- 4% Articaine Anaesthesia: A modern dental anaesthetic with exceptional bone penetration that reliably numbs even severely inflamed ‘hot molars’.
- Digital Apex Locators: High-precision electronic devices prevent dental instruments from poking past the root tip into the jawbone.
- Rotary Endodontic Motors: Quiet, smooth micro-motors that clean canals in minutes without painful vibration.
3. What to Expect 24 to 48 Hours After Treatment
Once your numbness wears off (typically 2 to 3 hours post-treatment), the ligament around the tooth root may feel tender or bruised when you bite down. This is mild inflammatory healing soreness. Over-the-counter pain medications prescribed by your dentist (such as Ibuprofen 400 mg or Aceclofenac + Paracetamol) keep you comfortable.
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Frequently Asked Questions (FAQs)
What if I feel pain during the root canal?
Alert your dentist immediately by raising your left hand. The dentist will stop and administer an additional drop of intra-pulpal or intra-ligamentary anaesthetic to achieve 100% numbness.
How long after a root canal will my tooth stop hurting completely?
Any post-operative gum tenderness usually resolves within 48 to 72 hours. If sharp throbbing pain persists beyond 5 days, visit your dentist to check if your temporary filling is biting too high.