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.”
Your teeth are sound and healthy—but appearance-wise, they're nothing to write home about. It's nothing major: a chip, some heavy staining or perhaps a slight gap between the front teeth. But whatever the blemish, it bothers you every time you look in the mirror.
There's an affordable way to improve your smile without a lot of extensive treatment: porcelain veneers. These thin layers of dental porcelain are bonded to the teeth's exterior to mask the blemishes beneath. All you and others can see, though, are beautiful teeth blending seamlessly with the rest of your natural teeth.
Changing your smile with veneers begins with a consultation with your cosmetic dentist. During your visit you'll discuss what you would like to improve and how you would like your smile to appear afterward. It's helpful to take along magazine photos or other images of how you'd like your teeth to look.
After making impressions and getting other necessary measurements, your dentist may then be able to show you what your new veneers will look like. One way is through computer software that superimposes your proposed new look onto a photograph of your face. Your dentist may also be able to create test veneers with acrylic or other dental materials and apply them to your teeth. These aren't your permanent veneers, but they can still give you a realistic view of your future smile.
Once your measurements are on the way to the dental lab to custom create your veneers, your dentist must prepare your teeth for bonding. Although veneers are quite thin, they may still appear bulky when bonded to the teeth. To create a more natural look, you'll probably need some of the enamel layer of your teeth removed to accommodate the extra width. Even though this is a small amount, it will permanently alter your teeth and require some form of restoration from then on.
After your veneers arrive, the dentist will attach them with a translucent cement that will bond them seamlessly to the natural teeth. You and others won't be able to see where the veneer ends and the natural tooth begins. What you will see, though, is a new look for your teeth and a more attractive smile.
If you would like more information on porcelain veneers, 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 “Porcelain Veneers: Strength & Beauty as Never Before.”
Most dental problems arise from tooth decay and periodontal (gum) disease. But they aren't the only source of danger to your teeth—gastroesophageal reflux disease (GERD) could be just as damaging to your tooth enamel as dental disease.
GERD usually occurs when a ring of muscles at the top of the stomach weaken, allowing stomach acid to enter the esophagus. This resulting acid reflux can make life unpleasant and pose potential health dangers—over time it can damage the lining of the esophagus and cause ulcers and pre-cancerous cells. It can also erode tooth enamel if acid enters the mouth and raises its level of acidity.
This can be a problem because acid can soften and dissolve the mineral content of tooth enamel. This is the primary cause of tooth decay as acid produced by oral bacteria attack enamel. The more bacteria present, often thriving in dental plaque, the higher the potential levels of acid that can damage enamel. Stomach acid, which is strong enough to break down food, can cause similar harm to enamel if it causes higher than normal acidity in the mouth.
There are some things you can do to protect your teeth if you have GERD, namely manage your GERD symptoms with lifestyle changes and medication. You may need to avoid alcohol, caffeine or heavily acidic or spicy foods, all known to aggravate GERD symptoms. Quitting smoking and avoiding late night meals might also ease indigestion. And your doctor may recommend over-the-counter or prescription drugs to help control your acid reflux.
You can also boost your teeth's enamel health by practicing daily brushing and flossing—but not right after a reflux episode. The enamel could be softened, so brushing can potentially remove tiny particles of mineral content. Instead, rinse with water mixed with or without a little baking soda to help neutralize acid and wait about an hour—this will give saliva, the mouth's natural acid neutralizer, time to restore the mouth's normal pH level.
And be sure you're using a fluoride toothpaste. Fluoride strengthens enamel—in fact, your dentist may recommend topical fluoride applications to boost the effect.
These and other tips can help minimize the effects of GERD on your dental health. With an ounce of prevention, you can keep it from permanently damaging your teeth.
If you would like more information on managing your dental health with GERD, 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 “GERD and Oral Health.”
When die-hard music fans hear that their favorite performer is canceling a gig, it’s a big disappointment—especially if the excuse seems less than earth-shaking. Recently, British pop sensation Dua Lipa needed to drop two dates from her world tour with Bruno Mars. However, she had a very good reason.
“I’ve been performing with an awful pain due to my wisdom teeth,” the singer tweeted, “and as advised by my dentist and oral surgeon I have had to have them imminently removed.”
The dental problem Lipa had to deal with, impacted wisdom teeth, is not uncommon in young adults. Also called third molars, wisdom teeth are the last teeth to erupt (emerge from beneath the gums), generally making their appearance between the ages of 18-24. But their debut can cause trouble: Many times, these teeth develop in a way that makes it impossible for them to erupt without negatively affecting the healthy teeth nearby. In this situation, the teeth are called “impacted.”
A number of issues can cause impacted wisdom teeth, including a tooth in an abnormal position, a lack of sufficient space in the jaw, or an obstruction that prevents proper emergence. The most common treatment for impaction is to extract (remove) one or more of the wisdom teeth. This is a routine in-office procedure that may be performed by general dentists or dental specialists.
It’s thought that perhaps 7 out of 10 people ages 20-30 have at least one impacted wisdom tooth. Some cause pain and need to be removed right away; however, this is not always the case. If a wisdom tooth is found to be impacted and is likely to result in future problems, it may be best to have it extracted before symptoms appear. Unfortunately, even with x-rays and other diagnostic tests, it isn’t always possible to predict exactly when—or if—the tooth will actually begin causing trouble. In some situations, the best option may be to carefully monitor the tooth at regular intervals and wait for a clearer sign of whether extraction is necessary.
So if you’re around the age when wisdom teeth are beginning to appear, make sure not to skip your routine dental appointments. That way, you might avoid emergency surgery when you’ve got other plans—like maybe your own world tour!
If you would like more information about wisdom tooth extraction, please call our office to arrange a consultation. You can learn more in the Dear Doctor magazine articles “Wisdom Teeth” and “Removing Wisdom Teeth.”
Applying braces or clear aligners to move misaligned teeth is only part of an orthodontist's overall mission to eliminate poor bites (malocclusions). Sometimes a malocclusion isn't caused by the teeth at all—the size of the jaw is the problem!
One type in particular, a cross-bite, often happens because the upper jaw has developed too narrowly. As a result, many of the upper teeth fit inside the lower, the opposite of normal. But a tool called a palatal expander can alleviate the problem if it's applied at an early enough age.
The device works because the upper jawbone initially forms as two halves that fit together along a center line in the roof of the mouth (the palate) running from the back of the mouth to the front. These two bone halves remain separate during childhood to facilitate jaw growth, but eventually fuse around puberty.
Consisting of two sets of wire arms joined together by a hinge mechanism in the middle, the expander device is positioned up against the palate. The orthodontist extends each arm to press against the inside of the back teeth, then adds more outward pressure by turning the mechanism in the middle with a small key. During wear, the patient or caregiver will turn the mechanism in the same way to keep up the pressure on the two sides of the jaw.
This continual pressure keeps the two bones moving away from each other and maintaining a center gap between them. In response, more bone forms on the two halves to fill the gap. In time, the newly formed bone should widen the jaw enough to correct any developing malocclusion.
Timing is everything with a palatal expander—if not used before the jaw bones fuse, the patient will need a surgical procedure to separate the bones to pursue treatment. To catch the problem early enough, children should have an orthodontic evaluation on or before they turn six. An orthodontist may be able to identify this or other emerging bite problems and intervene before it becomes worse. Taking this approach can help save you and your child more expensive orthodontic treatment down the road.
If you would like more information on correcting poor bites, 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 “Palatal Expanders: Orthodontics is more than just Moving Teeth.”
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