Key facts
- Root canal treatment can usually be completed in one or two appointments, according to the AAE.
- Root canal fees at Lucid Dental are quoted after an exam and X-ray.
- For patients enrolled in Korean NHIS, root canal treatment is typically covered with a copay.
- Back teeth usually need a crown after a root canal to help prevent cracking.
- Dr. Park Hyun-min completed an endodontics continuing education program at the University of Pennsylvania.
What is root canal treatment?
Root canal treatment removes inflamed or infected pulp (the nerve and blood vessels) from inside a tooth, then cleans, disinfects, fills and seals the canals. It lets you keep your natural tooth instead of having it pulled.
The American Association of Endodontists (AAE) explains that treatment can usually be completed in one or two appointments, depending on the tooth, and that the tooth is then restored with a crown or filling to protect it ( AAE).
What are the signs you may need a root canal?
Common warning signs are a lingering ache after hot or cold, throbbing pain that wakes you at night, pain when biting, a swollen gum or small pimple near the tooth, or a tooth that has turned darker. Some infected teeth cause no pain at all and only show up on an X-ray.
Only an exam and X-ray can confirm whether the nerve can recover or needs treatment. If you develop a toothache on holiday, our guide to toothache while traveling in Korea explains what to do in the meantime.
How much does a root canal cost at Lucid Dental?
Root canal fees at Lucid Dental are quoted after an exam. The fee depends on the tooth (front teeth have fewer canals than molars), how many visits are needed and whether a crown follows.
| Item | Fee at Lucid | Notes |
|---|---|---|
| Root canal treatment | Quoted after an exam | Often covered with a copay for patients enrolled in Korean NHIS |
| Crown on the treated tooth | Quoted after an exam | Usually advised for back teeth |
| Inlay instead of a crown (when suitable) | Quoted after an exam | Only if enough tooth remains |
| Implant if the tooth cannot be saved | Quoted after an exam | Fixture, abutment and zirconia crown, before grafting |
If you are enrolled in Korea's national health insurance, root canal treatment is typically a covered item with a copay; confirm your own coverage. For a closer look at costs, read our article on how much root canal treatment costs in Korea, or the guide to dental fees in Seoul.
What happens during a root canal?
A root canal follows a set sequence. Molars with several curved canals take longer than front teeth.
- Diagnosis: the dentist examines the tooth, tests its response and takes X-rays.
- Numbing: local anesthesia numbs the tooth and gum. Conscious sedation is available for very anxious patients.
- Isolation: a thin rubber sheet (a dental dam) keeps the tooth dry and clean.
- Access and cleaning: a small opening is made, and the pulp is removed with fine instruments while the canals are rinsed with disinfectant.
- Filling and sealing: the canals are filled with a rubber-like material and sealed. A temporary filling closes the opening if another visit is planned.
- Restoration: the tooth is rebuilt and, in most back teeth, protected with a crown.
Dr. Park Hyun-min, the clinic's chief dentist, has completed an endodontics continuing education program at the University of Pennsylvania.
Does a root canal hurt?
With modern local anesthesia, most people find a root canal feels similar to having a filling. The pain people associate with root canals usually comes from the infection beforehand, and treatment is what relieves it.
The AAE notes that the tooth may feel sore or tender for a few days afterward, and that most people can return to normal activities right away. Over-the-counter pain relief usually helps; tell us if pain gets worse rather than better. If you are nervous, read about sedation dentistry in Seoul.
How many days do I need in Seoul?
Many root canals are finished in one or two visits, but a badly infected tooth may need more. The crown afterward needs extra time for lab work, so the full plan is confirmed after the exam.
If your trip is short, the dentist may complete the root canal and place a strong temporary filling, so that your dentist at home can fit the crown. Ask for your X-rays and treatment notes so they have a full record. Leave a spare day before you fly in case the tooth needs a check.
Do I need a crown after a root canal?
Back teeth usually do. Once the pulp is removed, the tooth can become brittle, and molars take heavy chewing forces. A crown helps prevent the tooth from cracking.
Front teeth with little damage can sometimes be restored with a filling alone. Read more on our dental crowns page or in our zirconia crown guide.
What are the alternatives?
The main alternative is removing the tooth. After an extraction, the gap is usually replaced with a dental implant, a bridge or a partial denture, which often costs more in time and money than saving the tooth. Leaving a gap can let neighboring teeth drift. In some cases, when the tooth is cracked below the gum or has too little structure left, extraction is the more sensible choice.
What are the risks of root canal treatment?
Possible issues include soreness for a few days, a flare-up of infection, a canal that is hard to locate or clean because it is narrow or curved, an instrument separating inside a canal, and a tooth that cracks before it is crowned. Some teeth need re-treatment or a small surgical procedure later. Individual results vary; a consultation and exam are required.
Tips for travelers with a painful tooth
- Message us early in the day with a short description and a photo; same-week appointments are easier to arrange than same-evening ones.
- Note which medicines you have already taken and when, and bring the packets with you.
- Avoid placing aspirin directly on the gum, which can burn the tissue.
- If your face or neck swells quickly, or you have trouble swallowing or breathing, go to a hospital emergency room.
Book a consultation
Toothache, swelling or a dentist at home who said you need a root canal? Message us on WhatsApp at +82-10-8354-2975 with your symptoms and any X-rays, or book an appointment at Lucid Dental. We are open until 20:30 on Tuesdays, Wednesdays and Thursdays, and on Saturdays from 10:00 to 16:00.
Frequently asked questions
Can antibiotics fix a tooth that needs a root canal?
Antibiotics can help control spreading swelling, but they cannot clean out infected pulp inside the tooth. Without treatment, the infection usually returns once the medicine stops.
Can I fly with a temporary filling after a root canal?
Usually, yes. Air pressure changes rarely cause problems once the canals are cleaned and sealed. Avoid chewing hard foods on that tooth until it is permanently restored.
Why does my root-treated tooth look darker?
Teeth that have lost their nerve can slowly darken from the inside. Internal bleaching, a veneer or a crown can improve the color, depending on the tooth.
Can a tooth that already had a root canal get infected again?
Yes, sometimes, for example if decay leaks under an old filling or a canal was missed. Re-treatment is often possible and is assessed with X-rays.
Is it safe to have a root canal while pregnant?
Dental treatment, including root canals, is often carried out during pregnancy when needed, with precautions for X-rays and medicines. Tell the dentist you are pregnant so the plan and timing can be adjusted.