At a glance
Root canal treatment is a dental procedure that removes infected or damaged tissue from inside a tooth, allowing the tooth to be saved rather than extracted.
Inside every tooth is a soft core called the pulp, which contains nerves and blood vessels. When bacteria reach the pulp through a deep cavity, a crack, or an injury, the pulp becomes inflamed or dies, causing pain and sometimes swelling. During root canal treatment, the dentist or endodontist (a specialist in treating the inside of teeth) cleans out this infected pulp, shapes the hollow canals, and fills them with a rubber-like material to seal the tooth against further infection.
Medical Condition
Root canal treatment is used whenever the pulp inside a tooth is severely infected or irreversibly damaged and the goal is to keep the tooth in the mouth.
- Deep tooth decay that has reached the pulp
- A cracked or fractured tooth that exposes the pulp to bacteria
- Repeated dental procedures on the same tooth that have irritated the pulp over time
- A tooth injury, such as a hard knock, that damages the pulp even without a visible crack
- A dental abscess (a pocket of pus at the root tip caused by bacterial infection)
- Persistent toothache, prolonged sensitivity to heat or cold, or spontaneous pain that does not go away
Root canal treatment is not suitable in every situation. A dentist may recommend extraction instead when the tooth is too badly broken to be restored afterward, when the bone around the root is so severely damaged that saving the tooth is not realistic, or when there are not enough funds or time to complete the full treatment including the crown that usually follows.
Risks & Complications
Root canal treatment is a routine dental procedure and serious complications are uncommon, but like any procedure it carries some risks.
- Temporary soreness or sensitivity in the tooth and surrounding gum for a few days after treatment
- Reinfection of the canal if bacteria were not fully removed or if the seal fails over time
- A small instrument file breaking inside the canal during shaping, which may require further treatment
- Accidental perforation (a tiny hole) in the root wall during cleaning
- Reaction to the local anaesthetic (numbing injection), such as brief dizziness or an allergic response in rare cases
- The tooth becoming more brittle after treatment, which is why a crown is usually placed over it afterward
- Pain that does not resolve, occasionally requiring a repeat procedure called retreatment or, in some cases, minor surgery at the root tip (called an apicoectomy)
Preparation & Procedure
Root canal treatment does not require fasting, so you can eat and drink normally before your appointment. However, if you take blood thinners or any regular medications, your dentist will review them beforehand to decide whether any need to be paused. Alcohol is best avoided in the twenty-four hours before treatment because it can affect how local anaesthesia works. Smoking slows healing of gum tissue, so your dental team may ask you to reduce it before and after.
Before starting, the dentist will usually take one or more dental X-rays to map the shape and length of the root canals and check how far any infection has spread into the surrounding bone. In complex cases, a small CT scan of the jaw may be requested to give a three-dimensional picture of the canals.
The procedure itself typically follows these steps, though the exact number of visits varies by how severely the tooth is infected.
- A local anaesthetic (numbing injection) is given around the tooth so you feel pressure but not sharp pain.
- A thin rubber sheet called a dental dam is placed around the tooth to keep it dry and free of saliva during the procedure.
- The dentist drills a small opening through the top of the tooth to reach the pulp chamber inside.
- Tiny flexible instruments are used to remove the infected pulp and shape the canals.
- The canals are rinsed thoroughly with an antiseptic solution to flush out bacteria and debris.
- If infection is severe, the canals may be filled with a medicated dressing and the tooth sealed with a temporary filling, and you return in one to two weeks for the final filling.
- Once the dentist is satisfied the canals are clean, they are filled with a rubber-like material called gutta-percha and sealed.
- A temporary or permanent filling closes the access hole. A crown (an artificial cap over the whole tooth) is usually made and fitted at a separate appointment to protect the tooth long term.
Aftercare
Root canal treatment is carried out under local anaesthetic and you go home the same day, usually within an hour or two of finishing. Most people return to normal activities the next day, though some mild soreness is common for a few days.
- Avoid chewing hard or sticky foods on the treated tooth until the permanent crown or filling is in place.
- Over-the-counter pain relief is usually enough to manage post-procedure soreness; your dentist will advise what is appropriate.
- If antibiotics are prescribed for a spreading infection, take the full course as directed even once the pain eases.
- Keep the area clean by brushing gently and continuing normal flossing around neighbouring teeth.
- Contact your dentist promptly if swelling, severe pain, or a visible crack in the temporary filling develops before your next appointment.
- Return for the follow-up crown fitting within the timeframe your dentist recommends, typically a few weeks, since an unprotected root-canal-treated tooth is more likely to fracture.
- Attend regular dental check-ups so the dentist can monitor the tooth and the surrounding bone on X-ray over the following years.
Cost & What Determines It
The price of root canal treatment varies considerably depending on how complex the case is, where you have it done, and what additional work the tooth needs afterward.
- Tooth location and canal complexity: front teeth usually have one or two canals, while back molars can have three or four, requiring more time and skill and increasing the cost.
- Severity of infection: a heavily infected tooth may need multiple visits, medicated dressings, and a longer course of antibiotics, all of which add to the total.
- Specialist versus general dentist: treatment by an endodontist (a root canal specialist) is typically priced higher than the same procedure by a general dentist.
- Hospital or clinic class: a university dental hospital, a private specialist clinic, and a general dental practice carry different fee structures.
- Country of treatment: costs differ significantly between countries, which is a key reason patients consider travelling for dental care.
- Crown or restoration afterward: almost every root-canal-treated tooth needs a crown or substantial filling afterward, and this is usually priced and billed separately.
- Imaging: dental X-rays are often included, but a cone-beam CT scan of the jaw, if needed, is usually an additional charge.
- Retreatment: if a previous root canal has failed, redoing the procedure on a tooth that already has filling material inside is more complex and more costly.
Many dental clinics offer a package price that covers the consultation, X-rays, the root canal procedure itself, and a temporary filling. The permanent crown, any specialist referral fees, prescribed medications, and additional imaging are commonly billed separately, so ask for a written itemised estimate that covers every stage before you agree to treatment.
BPJS Kesehatan covers basic dental care at registered facilities in Indonesia, but root canal treatment for permanent teeth is only covered under specific conditions and usually at lower-tier facilities. Most Indonesian private health insurance policies do not cover dental treatment abroad. Patients who travel overseas for this procedure generally pay out of pocket or hold a private international health insurance plan that explicitly includes dental care. Before travelling, ask the destination clinic for a written cost estimate that lists each item separately, so there are no unexpected bills once you arrive.
Frequently Asked Questions
How many sessions does a root canal take?
Most root canals are completed in one to three appointments, depending on how infected or curved the tooth's canals are. A straightforward case on a front tooth can often be finished in a single visit, while a back molar with multiple canals may need two or three sessions to clean and seal properly. Your dentist will give you a clearer timeline after examining the tooth.
Does a root canal hurt?
The procedure itself is usually not painful because the dentist numbs the area with local anaesthetic before starting. Some people feel pressure or a brief sting when the anaesthetic is injected, but the treatment should feel comfortable once the tooth is numb. Mild soreness in the gum around the tooth is common for a few days afterwards and usually settles with basic pain relief.
How soon will my toothache go away after the treatment?
The sharp, throbbing pain that brought you in typically eases within a day or two once the infected tissue inside the tooth has been removed. Some tenderness when biting down can linger for up to a week while the surrounding tissue heals. If the pain feels severe or is getting worse after a few days, contact your dentist, as this can signal that the area needs further attention.
How much does root canal treatment cost?
The cost depends mainly on which tooth is being treated, since back teeth like molars have more canals to clean and take longer to complete. The class of dental clinic or hospital you choose, the need for a crown or cap to protect the tooth afterwards, and how many sessions are required all affect the final total. Requesting a written treatment plan from the clinic before you begin is the most reliable way to know what to expect.
This page is general information, not a substitute for medical advice. Every case is different. Your doctor decides what is right for you.
