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Root canal and pain go hand in hand in many people’s minds. Generally our fears and anxiety stem from others telling us their experiences and not from our own. A root canal (also referred to as RCT or root canal therapy) is a dental procedure where the damaged nerve (also called the pulp) of a tooth is removed. Following removal of the nerve, the canals of the tooth are cleaned and sterilized. Following this cleaning process the canals are filled and sealed permanently to avoid future dental infection. If treatment is not undertaken, the dental infection will affect the tooth along with surrounding oral structures (like gums and bone tissues) and a dental abscess can form in the area as the infection looks to escape.

The reason for the removal of the tooth’s nerve is because these nerves (along with associated blood vessels) is responsible with providing hydration and nutrients to our teeth. They also give us the ability to sense hot and cold.

Surveys year after year find that root canal therapy is considered the most feared of all dental procedures. These surveys also found people’s views on root canal therapy is based on what others have told them and not their own individual experiences. This leads to people believing mostly inaccurate stories about root canals. It is the fear of the unknown as I like to call it.

Is Root Canal Painful Or Can It Be Painless?

A root canal is necessary when the nerve of a tooth develops inflammation or becomes infected. This inflammation or dental infection can develop in a number of different ways:

Tooth decay that pushes into the area of the nerve or pulp chamber.

Fracture or chip in the tooth that gives bacteria a pathway to spread into the tooth’s nerve canal.

Trauma. Traumatic injury to a tooth may cause pulp damage even if the tooth has no visible chips or cracks. If pulp inflammation or infection is left untreated, it can cause pain or lead to a dental abscess.

A tooth causing pain of this type is irreversible. To save the tooth a root canal must be performed.

Signs and symptoms that a root canal is probably necessary can include pain, extended sensitivity to temperature (either hot or cold or both), tenderness to touch and chewing, discoloration of the tooth, and swelling, drainage and tenderness in the lymph nodes, bone and surrounding gingival tissues. In some cases, no outward dental symptoms are present at all

A root canal usually requires one or more visits to the dentist and can be performed by either a general dentist or a specialist called an endodontist. An endodontist is a dentist who specializes in the causes, diagnosis, prevention, and treatment of diseases and injuries of the human dental pulp or the nerve of the tooth. Your dentist will generally make the call on who should perform the root canal. You will be referred to endodontist if any of the following are needed:

-Degree Of Difficulty. Some teeth have anatomy that is slightly abnormal which makes the canals of the tooth harder to access.

-Re treatment of a previous root canal.

-Patient’s preference.

You and your dentist will discuss who is best suited to complete this root canal for you and make the best, informed decision for your dental treatment.

Root Canal Procedure

Is Root Canal Painful marielaina Perrone DDS Las vegasTake an X-ray if one has not already been taken. This will give your dentist a chance to evaluate the anatomy and shape of the tooth’s canals. It can also show the presence of a dental infection.

Anesthetic. Your dentist will use a local anesthetic to numb the surrounding areas to give you pain relief and also allow the procedure to be completed pain free. Some patients do not require any anesthetic but it will make it more comfortable.

Cleaning Of Tooth Canals. Tiny instruments are used to slowly clean out and debride bacteria, decayed nerve tissues, and bacteria from inside the tooth’s canals. Sterile water, peroxide, or sodium hypochlorite are used periodically to flush away the debris and kill any bacteria present.

Filling of Canals. Each canal is filled to the end of the tooth with a rubbery compound called gutta percha and permanently sealed. The process essentially is like a cork to prevent bacteria and fluid from re-entering the tooth, and keep it sterile. Many dentists prefer to wait a week or so before sealing the tooth. This will give the inflammation that has developed a chance to decrease back to normal levels. Others prefer to seal the tooth the same day it is cleaned out. If the root canal is not completed on the same day, a temporary filling is placed to keep out contaminants like saliva and food until the next appointment.

Following treatment, your tooth may feel sensitive for a few days to a week. This is especially true if there was pain or dental infection before the procedure. This discomfort can be relieved with over the counter or prescription pain medications or an antibiotic may be necessary if an infection was present. Follow directions given to you very carefully and feel free to ask your dentist questions if an issue comes up.

Your tooth may continue to feel slightly different from your other teeth for some time after your root canal treatment is completed. However, if you have severe pain or pressure or pain that lasts more than a few days, call your dentist immediately.

Restoration of Tooth. Generally but not always a tooth that needs a root canal often is one that already has a large dental restoration or extensive tooth decay. Even when tooth decay was not a factor, the tooth treated with a root canal is weaker than a “live” tooth. Therefore, a crown, crown and post, or other extensive dental restoration often needs to be placed on the tooth to protect it, prevent it from breaking, and restore it back to full function again. After a completed dental restoration, you will not be able to notice any difference in its function or form or feel. You and your dentist will discuss this need further and make an informed decision together the best course of action for your dental care.

Is A Root Canal Painful Conclusion

A dental root canal is extremely successful with a more than a 95% rate of success. Many teeth with a completed root canal can last a lifetime with no issues.

Most root canals are completed to relieve the pain of toothaches caused by pulpal inflammation or dental infection. With modern advancements in techniques, dental materials, and anesthetics, most patients state that they do not feel any pain once the procedure is underway. Root canal procedures have an undue reputation of being painful. Usually most patients report that the procedure itself is no more painful than having a routine dental restoration placed. The misconception has developed because the majority of the pain stems from the dental infection and pulpal inflammation that has developed. This can be tricky to get good anesthesia but a good dentist will be able to make you comfortable during the procedure.

As noted above, the pain from root canals in modern dentistry is mainly from the dental infection that presents to the dentist and the actual procedure should be pain and worry free. The best defense against developing a toothache and the need for a root canal is to see your dentist regularly, maintain proper oral hygiene, and call your dentist at the earliest signs if you have any pains or discomfort.




Root canal therapy is a very important tool in a dentist’s list of dental services to save and maintain our teeth. For many, it can be a scary procedure we try to avoid, but with a little educational knowledge, it can take some of the fear away and put your mind at ease. A root canal should not be avoided due to fear, understanding what to expect and why may help you get the dental treatment you need when you need it.

Root Canal Therapy Frequently Asked Questions

What Is Root Canal Therapy?

Root Canal Therapy (also referred to as root canal treatment or endodontic treatment)  is a dental procedure in which the diseased, decayed tooth, or damaged nerve of a tooth is removed and the inside areas (the nerve and canals within the roots) are cleaned, filled and sealed permanently to avoid infection. Without treatment, the surrounding tissues of the tooth (including the gums and bone) will become infected and a dental abscess can form.

A tooth’s nerve and blood vessel provide nutrients and hydration to a tooth as well as sense of temperature. It provides the sensation of hot or cold. The absence of a nerve will affect the strength of a tooth and make it become more brittle and susceptible to fracture if not protected by a crown.

How Do I Know If Root Canal Therapy Is Needed?

Common symptoms related to an infected tooth include tooth sensitivity (to hot or cold temperatures or even both), sensitivity to touch, toothache/sharp pain when chewing, swelling in the area of the tooth, or a bad taste in the mouth. These symptoms need to be evaluated by a dentist immediately to prevent further pain or damage.

What If I Ignore My Symptoms? Will They Just Go Away?

If the symptoms are ignored and treatment is not begun, the inflammation can progress to infection. Infection will continue to invade the tissues and tooth causing the tooth to become more painful and may become a health threat. Once the tooth “dies”, there are only two choices: extract the damaged tooth or perform root canal therapy.

How Is My Tooth Restored After Root Canal Therapy?

Depending on the extent of the damage to the tooth, your dentist can recommend a dental composite restoration to close the tooth or in most cases recommend a dental crown to protect the tooth against future damage. Over time, the tooth with the root canal therapy will dehydrate. This will make the tooth brittle and more susceptible to fracture/breaking. Most often, a crown is placed after root canal treatment is completed to protect the tooth and restore full function.

Is Root Canal Therapy Painful?

Typically, root canal therapy should cause no more discomfort than a simple dental filling). The pain most people associate with root canal therapy is due to the infection that develops. Root canal therapy actually relieves the pain by removing the dental infection and pressure.

What Are The Advantages Of Root Canal Therapy?

Saving the natural tooth with root canal treatment has many advantages:

-Efficient Chewing.

-Maintains Normal Biting Force And Sensation.

-Natural Looking Appearance.

-Protects other teeth from excessive wear or strain.

Root Canal Therapy helps you maintain your natural smile, continue eating the foods you love and limits the need for ongoing dental work. With proper care, most teeth that have had root canal treatment can last as long as other natural teeth and often for a lifetime.

Are There any Risks Or Complications?

Over 90 % of root canal therapy procedures are successful. However, there is a chance of a failed root canal. Sometimes the root canal therapy needs to be redone due to diseased canal offshoots that went unnoticed, the fracture of a filing instrument, or a fracture or perforation in the root. The signs of a root canal therapy failure are marked by a return of pain, pressure, and sensitivity.

Is There An Alternative To Root Canal Therapy?

There are other options. One includes extracting the infected tooth. Then the question becomes how to replace the tooth. A few options are possible and these include a dental bridge and a dental implant. The success rate of root canal therapy is over 90% so it is an excellent option to save your own natural tooth if at all possible.

What Can You Expect After Root Canal Therapy?

Most patients feel some sensitivity for a few days afterward. For many it is easily relieved with an over the counter pain medication (aleve or ibuprofen).

Can Root Canal Therapy Be Avoided?

Some tips include maintaining good dental hygiene, see your dentist and hygienist regularly, eat a well balanced diet, and wear a custom made sports mouthguards to decrease dental trauma. Root canals, unfortunately, are not entirely unavoidable, and may happen even with good hygiene and care.

Root Canal Therapy Conclusion

Many are fearful of the root canal therapy procedure but in reality it is not the horror that many believe it to be. Root canal therapy is an easy way to save your teeth in the event of dental trauma, decay, or dental infection. Knowing what to expect can go a long way to alleviating any fears you may have. It is important to save your natural teeth whenever possible.