For over half a century now, community water systems have been adding fluoride to drinking water to help reduce the risk of tooth decay. Numerous long-term studies have demonstrated the soundness of this practice, prompting the U.S. Centers for Disease Control to call water fluoridation one of the ten most effective public health measures of the 20th Century.
In the 1960s, after years of study into the teeth-strengthening effects of fluoride, the U.S. Public Health Service recommended that drinking water utilities add fluoride at a rate of between 0.7 and 1.20 milligrams per liter (mg/L) or parts per million (ppm) of water. This recommendation held fast until 2015 when the service changed the recommendation to no more than 0.7 mg/L.
Why the change to guidelines that had been in place for over fifty years? The revision was in response to an increasing occurrence of dental fluorosis. This condition happens when the teeth absorb more fluoride than necessary, leading to discoloration of the surface enamel, creating effects like small white spots or brownish “mottling.”
Dental fluorosis is the only known health condition caused by fluoride. As such, it doesn't damage the tooth itself, and is mainly a cosmetic problem. But it can still be avoided if fluoride intake is kept at moderate levels.
The original recommendation was sound science when first introduced. Since then, though, the prevalence of fluoride in everyday life has grown, with the chemical commonly found in dental care products like toothpastes or mouthrinses, as well as many processed foods and beverages and even infant formula. Our society's overall intake of fluoride has been growing as a result.
The new recommendation came after several years of research to verify water fluoridation levels of 0.7 mg/L would still be effective in the fight against tooth decay while lowering the risk of dental fluorosis. With this adjustment, this important and safe measure for keeping your family's teeth protected against disease is safer than ever.
You can't correct a poor bite with braces or clear aligners overnight: Even the most cut-and-dried case can still require a few years to move teeth where they should be. It's a welcome relief, then, when you're finally done with braces or aligner trays.
That doesn't mean, however, that you're finished with orthodontic treatment. You now move into the next phase—protecting your new smile that took so much to gain. At least for a couple of more years you'll need to regularly wear an orthodontic retainer.
The name of this custom-made device explains its purpose: to keep or “retain” your teeth in their new, modified positions. This is necessary because the same mechanism that allows us to move teeth in the first place can work in reverse.
That mechanism centers around a tough but elastic tissue called the periodontal ligament. Although it primarily holds teeth in place, the ligament also allows for tiny, gradual tooth movement in response to mouth changes. Braces or aligner trays take advantage of this ability by exerting pressure on the teeth in the direction of intended movement. The periodontal ligament and nature do the rest.
But once we relieve the pressure when we remove the braces or aligners, a kind of “muscle memory” in the ligament can come into play, causing the teeth to move back to where they originally were. If we don't inhibit this reaction, all the time and effort put into orthodontic treatment can be lost.
Retainers, either the removable type or one fixed in place behind the teeth, gently “push” or “pull” against the teeth (depending on which type) just enough to halt any reversing movement. Initially, a patient will need to wear their retainer around the clock. After a while, wear time can be reduced to just a few hours a day, usually during sleep-time.
Most younger patients will only need to wear a retainer for a few years. Adults who undergo teeth-straightening later in life, however, may need to wear a retainer indefinitely. Even so, a few hours of wear every day is a small price to pay to protect your beautiful straightened smile.
If you would like more information on orthodontic retainers, 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 “The Importance of Orthodontic Retainers.”
Heartburn is a big problem: Each year we Americans spend around $10 billion on antacid products, twice as much as for over-the-counter pain relievers. It's an even bigger problem because many indigestion sufferers actually have acid reflux or GERD (gastroesophageal reflux disease), a chronic disease that can cause physical harm—including to teeth.
That's why we've joined with other healthcare providers for GERD Awareness Week, November 17-23, to call attention to the causes and consequences of this disease. In addition to the harm it poses to the esophagus (the “tube” leading from the mouth to the stomach through which food passes), GERD could also damage your teeth to the point of losing them.
GERD is usually caused by the weakening of the lower esophageal sphincter, a ringed muscle located at the junction between the esophagus and the stomach. It acts as a “one-way valve” allowing food into the stomach, but not back into the esophagus. If it weakens, powerful stomach acid can come back into the esophagus and possibly even the mouth. The latter scenario poses a danger to teeth's protective layer of enamel.
Although tough and durable, enamel softens after prolonged contact with acid. Oral acid isn't all that unusual—acid levels typically rise right after eating, causing a temporary softening of enamel. Our saliva, however, goes to work to bring down those acid levels and stabilize enamel.
But if stomach acid enters the mouth because of GERD, the increased acidity can overwhelm saliva's ability to neutralize it. This can lead to enamel erosion, tooth decay and ultimately tooth loss. The enamel damage can be so pronounced that dentists are often the first to suspect GERD.
If you're diagnosed with GERD, here's what you can do to protect your teeth.
- Manage your GERD symptoms through medication, avoidance of spicy/acidic foods, alcohol, caffeine or tobacco products, and maintaining an optimum weight;
- Stimulate saliva by drinking more water, using saliva boosters, or (with your doctor's consent) changing from medications that may be restricting saliva flow;
- Speak with your dentist about strengthening your enamel with special toothpastes or mouthrinses containing extra fluoride or amorphous calcium phosphate (ACP).
You should also brush and floss daily to lower your risk of dental disease, but with one caveat: Don't brush your teeth during or immediately after a reflux episode, as you might remove microscopic bits of softened enamel. Instead, rinse your mouth with water mixed with a half-teaspoon of baking soda (an acid neutralizer) and wait about an hour to brush. The extra time also gives saliva time to further neutralize any remaining acid.
GERD can be unpleasant at best and highly destructive at worst. Don't let it ruin your teeth or your smile.
If you would like more information about GERD and dental health, please contact us or schedule a consultation. To learn more, read the Dear Doctor magazine articles “GERD and Oral Health” and “Dry Mouth.”
If there's anything that makes Alfonso Ribeiro happier than his long-running gig as host of America's Funniest Home Videos, it's the time he gets to spend with his family: his wife Angela, their two young sons, and Alfonso's teenaged daughter. As the proud dad told Dear Doctor–Dentistry & Oral Health magazine, "The best part of being a father is the smiles and the warmth you get from your children."
Because Alfonso and Angela want to make sure those little smiles stay healthy, they are careful to keep on top of their kids' oral health at home—and with regular checkups at the dental office. If you, too, want to help your children get on the road to good oral health, here are five tips:
- Start off Right—Even before teeth emerge, gently wipe baby's gums with a clean, moist washcloth. When the first teeth appear, brush them with a tiny dab of fluoride on a soft-bristled toothbrush. Schedule an age-one dental visit for a complete evaluation, and to help your child get accustomed to the dental office.
- Teach Them Well—When they're first learning how to take care of their teeth, most kids need a lot of help. Be patient as you demonstrate the proper way to brush and floss…over and over again. When they're ready, let them try it themselves—but keep an eye on their progress, and offer help when it's needed.
- Watch What They Eat & Drink—Consuming foods high in sugar or starch may give kids momentary satisfaction…but these substances also feed the harmful bacteria that cause tooth decay. The same goes for sodas, juices and acidic drinks—the major sources of sugar in many children's diets. If you allow sugary snacks, limit them to around mealtimes—that gives the mouth a chance to recover its natural balance.
- Keep Up the Good Work—That means brushing twice a day and flossing at least once a day, every single day. If motivation is an issue, encourage your kids by letting them pick out a special brush, toothpaste or floss. You can also give stickers, or use a chart to show progress and provide a reward after a certain period of time. And don't forget to give them a good example to follow!
- Get Regular Dental Checkups—This applies to both kids and adults, but it's especially important during the years when they are rapidly growing! Timely treatment with sealants, topical fluoride applications or fillings can often help keep a small problem from turning into a major headache.
Bringing your kids to the dental office early—and regularly—is the best way to set them up for a lifetime of good checkups…even if they're a little nervous at first. Speaking of his youngest child, Alfonso Ribeiro said "I think the first time he was really frightened, but then the dentist made him feel better—and so since then, going back, it's actually a nice experience." Our goal is to provide this experience for every patient.
If you have questions about your child's dental hygiene routine, call the office or schedule a consultation. You can learn more in the Dear Doctor magazine article “How to Help Your Child Develop the Best Habits for Oral Health.”
The top cause for adult tooth loss isn't decay or trauma—it's periodontal (gum) disease. The disease may begin with the gums, but it can ultimately damage underlying bone enough to weaken its support of teeth, causing them to loosen and fall out.
But that's not the end of the havoc gum disease can wreak. The consequences of an uncontrolled infection can ripple beyond the mouth and worsen other health problems like diabetes, heart disease or arthritis.
The common link between gum disease and these other conditions is the inflammatory response, a natural mechanism to fight infection caused by disease or trauma. This mechanism changes blood vessels to increase blood flow to hasten the travel of protective white blood cells to the injury or disease location.
But if this mechanism that supports healing becomes chronic, it can actually do harm. The chronic inflammation that occurs with gum disease can damage mouth structures, just as inflammation from diabetes or arthritis can damage other parts of the body. And any form of chronic inflammation, even that found in gum disease, can worsen other inflammatory diseases.
You can lessen this link between gum disease and other conditions—as well as improve your oral health—by preventing or seeking prompt treatment for any periodontal infection in the following ways:
- Practice daily brushing and flossing to clear away bacterial dental plaque, the main cause of gum disease;
- See your dentist regularly for more thorough dental cleanings and checkups;
- See your dentist promptly if you notice red, swollen or bleeding gums, common signs of a gum infection;
- Stop smoking to lower your risk for both gum disease and tooth decay;
- Adopt a healthy diet, which can help you lose weight (a factor in diabetes and other inflammatory diseases) and strengthen your immune system;
- Manage other inflammatory conditions to lessen their effect on your gum disease risk.
Taking these steps can help you avoid the inflammation caused by gum disease that might also affect the rest your body. Seeking prompt treatment at the first sign of an infection will also minimize the damage to your teeth and gums and the effect it could have on the rest of your health.
If you would like more information on prevention and treatment of gum disease, 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 “Gum Disease & Systemic Health.”
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