Monday - Saturday: 8h - 12h ; 14h - 20h
Sunday: 8h - 12h

69 Le Van Thiem, Phu My Hung, District 7, HCMC, Vietnam
Phone: 0917.483.796 - 0979.110.971




1. What is a dental root canal treatment? How long does a root canal treatment take?

A dental root canal treatment, often called a “root canal” is a dental procedure used to treat and save a tooth that is badly decayed or infected. This treatment involves removing the damaged area of the tooth, cleaning and disinfecting it, then filling and sealing it.

The term ‘root canal’ comes from cleaning the canals inside the tooth’s root. The length of a root canal treatment can vary based on the severity of the tooth’s condition and the specific tooth affected, but on average, it can take one to two hours per session.

Typically, one to two sessions are needed to complete the treatment. During the treatment, patient will be advised not chewing on the side where the root canal treatment tooth is performing.

dental root canal treatment

2. How do I know if I need a root canal treatment? Will a root canal treatment be painful? Can a root canal procedure fail?

Knowing if you need a root canal treatment typically requires a professional evaluation by a dentist. However, symptoms such as severe tooth pain when eating or applying pressure, prolonged sensitivity to hot or cold, darkening or discoloration of the tooth, swelling and tenderness in the nearby gums, or a recurring pimple on the gums could indicate that you might need a root canal treatment.

Regarding pain, aesthatic dentistry has made root canal treatments much more comfortable than in the past. Anesthetics and advanced techniques ensure the patient experiences minimal to no pain during the procedure. Following the process, there may be some tenderness or discomfort for a few days, which can be managed with over-the-counter pain medications.

As with any medical or dental procedure, there is a possibility of failure with root canal treatment, but it’s relatively low. Most root canal treatments are successful, and the procedure has a success rate of over 95%. A root canal can fail if the dentist is unable to fully clean and seal the root canal due to the complexity of the tooth’s structure or if an additional channel goes undetected. If the seal isn’t perfect or there’s a root crack, bacteria can re-enter the tooth, causing a possible infection.

However, if a root canal procedure fails, there are still options to save the tooth, such as endodontic retreatment or apicoectomy. It’s crucial to have regular dental check-ups and maintain good oral hygiene to ensure the success of a root canal treatment.

endodontic retreatment root canal crown

3. What are the risks associated with a root canal treatment? Are there any side effects or complications after a root canal treatment? Are there any age restrictions for root canal treatments?

Root canal treatment is a standard dental procedure but comes with risks and potential complications like any medical procedure.

3.1. Infection

An infection is the most common risk associated with root canal treatment. Despite the dentist’s best efforts to clean and seal the canal, bacteria may remain and cause an infection. This can occur if the dentist fails to find and treat all the channels in a tooth or if the sealing materials break down over time.

3.2. Tooth Fracture

A tooth that has undergone a root canal procedure is more brittle than a healthy tooth and may fracture more easily. This is because the tooth’s blood supply and much of its internal structure have been removed.

3.3. Treatment Failure

Root canal treatment may sometimes not resolve the tooth’s problems. This could be due to various reasons, including complex canal anatomy, resistant bacteria, or insufficient cleaning and filling of the canal.

3.4. Adverse Reactions

Some people may be allergic to the materials used in root canal treatment. This is rare, but it can lead to inflammation and discomfort.

dental root canal treatment

4. Are there any dietary restrictions after a root canal treatment? Can I brush my teeth after a root canal treatment?

After a root-canal treatment, some dietary restrictions must be followed. It is recommended to avoid eating anything until the numbness from the anesthesia wears off to avoid biting your tongue or cheek. You should also avoid eating hard, crunchy, or chewy foods for a few days, as these can cause pain and may dislodge the temporary filling or crown. Sticking to soft foods such as soup, pasta, eggs, yogurt, and mashed potatoes is best.

Avoid extremely hot or cold food and drinks, as your tooth may be sensitive after the procedure. Alcohol and smoking should also be avoided immediately after the treatment, as they can slow the healing process.

As for oral hygiene, yes, you can brush your teeth after a root canal treatment. Maintaining a good oral hygiene routine is essential to keep your mouth clean and prevent infections. To avoid discomfort or damage, you should gently brush and floss around the treated area. However, be careful not to dislodge any temporary filling material if used in your treatment.

The root-canal treatment tooth will be advised to put the crown on because the tooth is crunchy and high risk to be broken after completed the root treatment.

It is always advisable to discuss post-treatment care with your dentist and follow their instructions carefully for a smooth recovery.

5. How long does the recovery process take after a root canal treatment? Will my tooth be sensitive to hot and cold after a root canal treatment?

The recovery process after a root canal treatment varies for each individual and largely depends on the severity of the infection and the extent of the procedure. However, typically, most people begin to feel better within a few days. It’s quite common to experience some discomfort or a mild toothache for a few days after the treatment. This can usually be managed with over-the-counter painkillers.

As for sensitivity to hot and cold, you may experience some immediate sensitivity following the procedure due to the inflammation of the surrounding tissues. This is normal and should subside within a few days to a week. Once the root canal treatment has been completed and the tooth fully healed, you should no longer experience temperature sensitivity. The nerve tissue responsible for sensing temperature was removed during the root canal treatment.

However, if the sensitivity persists for over a few weeks, it’s advisable to consult your dentist as it may indicate an issue needing further treatment.

6. How long does a root canal-treated tooth last? How much does a root canal treatment cost? Does dental insurance cover the cost of root canal treatment?

A dental root canal treatment can last a lifetime with proper care. Some factors influencing longevity include oral hygiene habits, regular dental check-ups, and avoiding chewing hard foods with the treated tooth.

The cost of a dental root-canal treatment can vary widely depending on the complexity of the problem, the tooth that needs to be treated, and the region where you are getting the treatment. On average, a root canal can range from $100 to $250 per tooth. If a dental crown is needed after the root canal, that may add $350 to $700 to the total cost.

Whether dental insurance covers the cost of a dental root-canal treatment depends on the specific insurance plan. Many dental insurance plans provide some coverage for endodontic treatments such as root canals. The amount covered can vary, but it’s commonly around 50% to 100% of the cost. However, most insurance plans have an annual maximum, and if the cost of the treatment exceeds this maximum, the patient would be responsible for the remainder.

It’s best to speak with your insurance provider to understand what your plan covers before undergoing treatment.

Book an Appointment at Sakura Dental Clinic

Calendar is loading...
Powered by Booking Calendar

Managed by Doctor TRAN NGOC TU, Ph.D. in Dentistry, Tokyo University, Japan

Monday – Saturday:

8h – 12h; 14h – 20h
8h – 12h

  • Business registration certificate number: 0309935880, issued by the Department of Planning and Investment of Ho Chi Minh City on May 10, 2022.

  • Medical examination and treatment practice certificate number: 001272/HCM-CCHN, issued by the Department of Health of Ho Chi Minh City on July 20, 2012.

  • Medical examination and treatment operation license number: 01839/SYT-GPHD, issued by the Department of Health of Ho Chi Minh City on March 18, 2014.


The Vietnamese version is the main version and has reference value. We have tried to make the other versions (English, Japanese, etc.) as good as possible. Despite these efforts, errors persist, particularly regarding foreign languages. We hope our readers will notify us of these errors via the contact form or at
We thank you for your valuable help.