A root canal has a scary reputation it doesn't really deserve. It's the treatment that saves a badly infected tooth — and with modern techniques it's usually no worse than a filling. Here's what to expect.
"Root canal" makes people wince, but the procedure is what saves a tooth that would otherwise have to come out. When the soft tissue inside a tooth (the pulp) becomes infected or inflamed, a root canal removes it, cleans the space, and seals it — so you keep your natural tooth.
Signs you might need one
- Lingering pain, especially to hot or cold
- Pain when biting or pressing on a tooth
- Swelling or a pimple-like spot on the gum
- A tooth that has darkened
Sometimes there''s no pain at all and it''s found on an X-ray. A proper diagnosis is essential — that''s where imaging and an exam come in.
What the treatment involves
- The tooth is numbed with local anaesthetic — you shouldn''t feel pain during treatment.
- The infected pulp is removed and the inside of the tooth is cleaned and shaped.
- The space is sealed.
- Because a treated tooth can become brittle, it''s often protected afterward with a crown.
It may take one or more visits depending on the tooth.
Does it hurt?
Modern root canal treatment is done under anaesthetic and is usually about as comfortable as a filling. Any tenderness afterward settles in a few days.
At Seoul Lab Dental: our specialist dentist is US-trained in endodontics (root canal treatment) — so complex cases are in experienced hands, and every step is explained to you in English.
Cost and insurance
Root canal treatment is often partly covered by NHIS, so the covered portion applies as it does for locals; you pay a co-payment. A crown placed afterward may be separate. We put the full plan and cost in writing after your exam.
Why save the tooth?
Keeping your own tooth is almost always better than losing it — it preserves your bite and avoids the need for an implant or bridge later. A root canal is how that''s done.
Frequently asked questions
Is a root canal painful?
It''s done under local anaesthetic, so you shouldn''t feel pain during treatment — it''s usually about as comfortable as a filling. Mild tenderness for a few days afterward is normal.
How do I know if I need a root canal?
Common signs are lingering pain to hot or cold, pain when biting, gum swelling, or a darkened tooth. Sometimes there are no symptoms and it''s found on an X-ray — an exam confirms it.
Is root canal treatment covered by insurance in Korea?
Root canal treatment is often partly covered by NHIS, so you pay a co-payment on the covered portion. A crown placed afterward may be separate. We confirm the full cost in writing after your exam.
Do you have an endodontics specialist?
Yes. One of our dentists is US-trained in endodontics (root canal treatment), so more complex cases are handled by an experienced specialist — and explained to you in English.
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