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Posts for tag: root canal treatment

By Mark J. Schwartz, DMD
May 08, 2019
Category: Dental Procedures
RootCanalsareaSafeWaytoSaveTeeth

Every year U.S. dentists perform around 25 million root canal treatments and save countless teeth from the ravages of decay. But if you search "root canal" on the Internet, you might encounter an unsettling charge against this tooth-saving treatment—that it causes cancer.

Root canal treatments are routinely used when tooth decay has infected the pulp, the innermost layer of a tooth. During the procedure, we access the pulp and remove all the infected tissue. We then fill the empty pulp and root canals, seal the access hole and later crown the tooth to prevent further infection. Without this intervention, the decay can continue to advance toward the roots and supporting bone, putting the tooth in imminent danger of loss.

So, is there any credibility to this claim that root canal treatments cause cancer? In a word, no: there's no evidence of any connection between root canal treatments and cancer—or any other disease for that matter. On the contrary: root canals stop disease.

As with other types of urban legends and internet hype, the root canal-cancer connection may have arisen from another discredited idea from the early 20th Century. A dentist named Weston Price promoted the notion that leaving a "dead" organ in the body led to health problems. From his perspective, a root canaled tooth with its removed pulp tissue fit this criterion.

In the mid-1950s, dentistry thoroughly examined Dr. Weston's theory pertaining to treatments like root canals. The Journal of the American Dental Association devoted an entire issue to it and found after rigorous scientific inquiry that the theory had no validity in this regard. Another study in 2013 confirmed those findings. In fact, the later study instead found that patients who underwent a root canal treatment had a 45 percent reduction in oral cancer risk.

Given the freewheeling nature of the Internet, it's best to speak with a dental professional about your oral health before trusting a post or article you've found online. Not only are they more informed than an unverified online source, they would certainly not knowingly subject you to a procedure to save a tooth at the expense of your health.

If you would like more information on root canal treatment, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Root Canal Safety.”

3FactorsThatCouldAffecttheSuccessofaRootCanalTreatment

A tooth with deep decay is in real peril. If the disease isn’t stopped, it can eventually infect the bone and greatly increase the risk of losing the tooth. But tooth decay removal and a root canal treatment can stop advancing decay and resulting infection in its tracks.

During this common procedure we first drill into the tooth to access the inner pulp. After removing the infected pulp tissue, we disinfect and fill the empty chamber and root canals with gutta percha. We then seal the tooth and crown it to protect against re-infection.

But while most root canals are successful and long-lasting, sometimes the tooth becomes re-infected. Here are 3 factors that could affect the long-term success of a root canal treatment.

Early treatment. Like many health problems, the sooner we detect decay and treat it, the better the outcome. A tooth in which the infection has already advanced beyond the pulp is at greater risk for re-infection than one in which the infection is localized in the pulp. Keeping up your regular dental visits as well as seeing the dentist at the first sign of abnormality—spots on the teeth or pain—can increase your chances of early diagnosis.

Tooth complications. Front teeth with their single roots and canals are much easier to access and treat than a back molar with an intricate root canal network. Root canals can also be extremely narrow making them easy to miss during treatment. In cases like this the expertise and advanced equipment of an endodontist (a specialist in root canal treatment) could help increase the odds of success in complex situations.

The aging process. Teeth do wear over time and become more brittle, making them increasingly susceptible to fracture. A previous root canal treatment on an aging tooth might also increase the fracture risk. To avoid this, it’s important for the tooth to receive a crown after the procedure to protect the tooth not only from re-infection but undue stress during chewing. In some situations, we may also need to place a post with a bonded composite buildup within the tooth to give it extra support.

Even if a tooth has these or similar complications, a root canal treatment may still be advisable. The benefits for preserving a decayed tooth often far outweigh the risks of re-infection.

If you would like more information on root canal treatments, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Root Canal Treatment.”

WhatHappensinaRootCanalTreatmentandHowitCanSaveYourTooth

Along with periodontal (gum) disease, tooth decay poses one of the two greatest threats to your teeth. Cavities are just the start: if decay invades the pulp, the tooth’s innermost layer, the infection created can continue to advance through the root canals to the supporting bone. This worst case scenario could cost you your tooth.

But we can stop this advanced decay in its tracks with a procedure called a root canal treatment. A root canal essentially removes all the infected tissue within the tooth and then seals it from further infection. And contrary to its undeserved reputation for being painful, a root canal can actually stop the severe tooth pain that decay can cause.

At the beginning of the procedure, we deaden the affected tooth and surrounding tissues with local anesthesia—you’ll be awake and alert, but without pain. We then isolate the tooth with a dental dam of thin rubber or vinyl to create a sterile environment around it to minimize contamination from bacteria found in saliva and the rest of the mouth.

We then drill a small hole through the enamel and dentin to access the interior of the tooth. With special instruments, we remove and clean out all the diseased or dead tissue in the pulp chamber and root canals. After disinfecting the empty spaces with an antibacterial solution, we’ll shape the root canals to make it easier to perform the next step of placing the filling.

To fill all the root canals and pulp chamber, we typically use a rubber-like material called gutta-percha. Because it’s thermoplastic (“thermo”—heat; “plastic”—to shape), we can compress it into and against the walls of the root canals in a heated state to fully seal them. This is crucial for preventing the empty tooth interior from becoming re-infected. Afterward, we’ll seal the access hole with its own filling; later, we’ll bond a permanent crown to the tooth for additional protection and cosmetic enhancement.

After the procedure you may have some temporary minor discomfort usually manageable with aspirin or ibuprofen, but your nagging toothache will be gone. More importantly, your tooth will have a second chance—and your dental health and smile will be the better for it.

If you would like more information on treating tooth decay, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “A Step-By-Step Guide to Root Canal Treatment.”



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