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.”
Tooth decay is a destructive oral disease, which along with periodontal (gum) disease is most responsible for tooth loss. And as you age, your disease risk goes up.
One form of decay older people often experience is root cavities. Unlike those occurring in the visible crown, root cavities often occur below the gum line and are especially destructive to tooth structure.
That's because, unlike the crown protected by ultra-hard enamel, the roots are covered by a thin, mineralized material called cementum. Although cementum offers some protection, it can't compare with the decay-resistant capacity of enamel.
The roots also depend on gum coverage for protection. But unfortunately, the gums can shrink back or recede, usually due to gum disease or over-aggressive brushing, and expose some of the root surface. With only the cementum to protect them, the roots can become highly susceptible to decay. If a cavity forms here, it can rapidly advance into the tooth's interior, the pulp, weakening the tooth and increasing its risk of loss.
To stop the decay, we must treat root cavities much like we do with crown cavities: by removing any decayed structure and then filling the cavity. But root cavities are often more difficult to access depending on how far below the gum line they extend. We may need to perform minor gum surgery to expose the cavity to treat it.
But as with any form of tooth decay, the best strategy is to prevent root cavities in the first place. Your first line of defense is a daily hygiene habit of brushing and flossing to remove dental plaque, the main cause for tooth decay. You should also visit your dentist at least twice a year (or more, if recommended) for more thorough cleanings and checkups. Your dentist can also recommend or prescribe preventive rinses, or apply fluoride to at-risk tooth surfaces to strengthen them.
You should also be on the lookout for any signs of gum disease. If you see swollen, reddened or bleeding gums, see your dentist as soon as possible. Stopping possible gum recession will further reduce your risk of root cavities.
If you would like more information on the prevention and treatment of 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 “Root Cavities: Tooth Decay Near the Gum Line Affects Many Older Adults.”
Singer and actor Demi Lovato has a new claim to fame: formidable martial artist. When she is not in the recording studio, on stage or in front of the camera, Lovato can often be found keeping in shape at Jay Glazer's Hollywood (California) gym. Glazer, who is best known as a sports journalist, also runs conditioning programs for professional athletes and celebrities based on mixed martial arts. On March 6, Glazer got more than he bargained for when 5'3" Lovato stepped into the ring and knocked out his front tooth.
Glazer reportedly used super glue to put his tooth back together. Not a good idea! While it may not be convenient to drop everything and get to the dental office, it takes an expert to safely treat a damaged tooth. If you glue a broken tooth, you risk having to undergo major work to correct your temporary fix—it's no easy task to "unglue" a tooth, and the chemicals in the glue may damage living tooth tissue as well as the surrounding gum and bone.
Would you know what to do in a dental emergency? Here are some guidelines:
- If you chip a tooth, save the missing piece if possible. We may be able to reattach it.
- If your tooth is cracked, rinse your mouth with warm water, but don't wiggle the tooth around or bite down on it. If it's bleeding, hold clean gauze to the area and call our office.
- If your tooth is knocked loose or is pushed deeper into the socket, don't force the tooth back into position on your own. Immediate attention is very important.
- If your tooth is knocked out, there's a chance it can be reattached. Pick up the tooth while being careful not to touch the root. Then rinse it off and have either someone place into its socket, or place it against the inside of your cheek or in a glass of milk. Please call the office immediately or go to a hospital.
What's the best thing to do in an emergency? Call us right away, and DON'T super glue your tooth! You can prevent worse problems by letting a professional handle any dental issues. And if you've been living with a chipped, broken or missing tooth, call us to schedule an appointment for a consultation—there are several perfectly safe ways to restore your smile. Meanwhile, if you practice martial arts to keep in shape, think twice before getting into the ring with Demi Lovato!
While dental diseases tend to be a greater concern as we get older, they also pose a potential threat to children. A particular type of tooth decay called early childhood caries (ECC) can severely damage children's unprotected teeth and skew their normal dental development.
Fortunately, you can protect your child's teeth from disease with a few simple practices. First and foremost: start a hygiene habit as soon as possible to remove disease-causing bacterial plaque. You don't have to wait until teeth appear, either: simply wipe the baby's gums with a clean wet cloth after nursing to minimize the growth of oral bacteria.
When their teeth do begin to erupt, you can switch to brushing (you can add flossing as more teeth erupt—but until the child shows appropriate dexterity, you'll need to do it for them). For infants, brush gently but thoroughly with a soft-bristled brush and a smear of fluoride toothpaste. When they grow older you can increase the toothpaste to a pea-sized amount. And as soon as you can, get them involved with learning to perform these vital habits on their own.
You should also limit your child's consumption of sugar. Our favorite carbohydrate is also a favorite of bacteria, who consume any remnants in dental plaque as a primary food source. So, keep sugary snacks and foods to a minimum and limit them mainly to mealtimes. And don't put a baby to sleep with a bottle filled with a liquid containing sugar (including formula and breastmilk).
Finally, begin taking your child to the dentist regularly by their first birthday for routine cleanings and checkups. Besides removing any hard to reach plaque, your dentist may also apply sealants and topical fluoride to help protect and strengthen tooth enamel. Regular visits make it more likely to detect the early signs of decay, before it does extensive damage. And beginning early makes it less likely your child will develop a fear of dental visits that could carry on into adulthood.
These and other steps will go a long way in protecting your child's teeth and gums so they develop normally. A little prevention and protection will help ensure a happy, healthy smile later in life.
If you would like more information on helping your child develop healthy teeth and gums, 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 “Top 10 Oral Health Tips for Children.”
There are a few mouth conditions so rare most of us have never heard of them. Geographic tongue would fall into this category, affecting only one to three percent of the population. Even so, these irregular reddish patches resembling land masses on a map (hence the name) might be alarming at first glance—but they pose no danger and usually cause very little discomfort.
Geographic tongue is also known as benign migratory glossitis. As its clinical name implies, the unusual red patchy areas (often surrounded by a grayish white border) aren't cancerous nor contagious. The patches also appear to change shape and move around ("migrate") the tongue.
The reddish appearance comes from the temporary disappearance of tiny bumps on the tongue surface called papillae, which can leave the tongue smooth to the touch in affected areas. The lost papillae may reappear again a few hours or days later, and may occasionally disappear again. While it's not painful, you can experience a stinging or burning sensation emitting from these patchy areas.
We're not sure how and why geographic tongue erupts, but it's believed high emotional or psychological stress, hormonal imbalance or certain vitamin deficiencies might be factors in its cause. There may also be a link between it and psoriasis, a condition that can cause dry, itchy patches on the skin.
If you're one of the rare individuals who has episodes of geographic tongue, the good news is it's harmless, only mildly uncomfortable and usually temporary. The bad news, though, is that there's no known cure for the condition—but it can be managed to ease discomfort during outbreaks.
It's been found that highly acidic and spicy foods, as well as astringents like alcohol or some mouthrinses, can increase the level of discomfort. By avoiding these or similar foods or substances, you can reduce the irritation. Your dentist may also be able to help by prescribing anesthetic mouthrinses, antihistamines or steroid ointments.
For the most part, you'll simply have to wait it out. Other than the mild, physical discomfort, the worst part is often simply the appearance of the tongue. But by watching your diet and other habits, and with a little help from us, you can cope with these irritations when it occurs.
If you would like more information on geographic tongue and similar oral issues, 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 “Geographic Tongue: No Cause for Alarm.”
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