In the battle against tooth decay, fluoride is an important weapon. Since the discovery of its dental health benefits a century ago, fluoride has been credited with saving countless teeth.
But over its history in dental care, this natural-occurring chemical has also had its share of controversy with concerns raised from time to time on potential health dangers. These run the gamut from “conspiracy theory” speculations to credible research like a 2006 National Research Council study that suggested a possible increased risk of bone fracture or cancer from over-consumption of fluoride.
Even so, there is actually little evidence or even record of incidence for such dire consequences. The only definitive health effect from fluoride found after decades of copious research is a condition called fluorosis, a permanent staining effect on the teeth. Fluorosis poses a cosmetic problem but does not harm the health of the teeth.
Moderation in fluoride use seems to be the key to gaining its health benefits while avoiding fluorosis. One influential fluoride researcher, Dr. Steven Levy, estimates 0.05-0.07 milligrams of fluoride per one kilogram of body weight (about a tenth the weight of a grain of salt for every two pounds) is sufficient to gain the optimum dental benefit from fluoride.
The real question then is whether your family’s current consumption of fluoride is within this range. That will depend on a number of factors, including whether your local water utility adds fluoride to your drinking water supply and how much. You may also be ingesting fluoride through processed foods, juices and even some bottled waters. And you can encounter fluoride in dental care including toothpastes and clinical treatments.
One way to moderate your family’s fluoride intake is to be sure all your family members are using the correct amount of fluoride toothpaste for their age while brushing. Infants need only a slight smear on the end of the brush, while older children can brush adequately with just a pea-sized amount. For other tips and advice, talk to your dentist about your family’s fluoride intake and how you might adjust it.
Even with the possibility of fluorosis, fluoride still provides an incredible benefit in preventing tooth decay. By understanding fluoride and keeping your intake within normal ranges you can maximize its benefit for healthier teeth and minimize the fluorosis risk.
If you would like more information on the role of fluoride in dental health, 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 “Fluoride & Fluoridation in Dentistry.”
What's your favorite winter sport? For some, it's all about swooshing down a snowy trail on skis, a board, or a sled. For others, the main attraction is skating at an ice rink or a frozen pond. If you're more of an indoors athlete, you may enjoy a fast-moving game of basketball or a round of squash. Or, you might take a turn on a climbing wall or a trampoline.
What do all these activities have in common? They're fun, they're great exercise…and they all come with a risk of injury to your teeth.
It's easy to see how a collision on snow or ice could result in a blow to the mouth. But did you know that basketball (along with hockey) is among the sports with the highest risk of facial injury? What's more, many "non-contact" sports actually have a similar risk.
Located front and center in the face, the incisors (front teeth) are the ones most likely to sustain injury. Unfortunately, they are also the most visible teeth in your smile. With all of the advances in modern dentistry, it's possible to restore or replace damaged teeth in almost any situation—but the cost can be high, both for present restoration and future preservation. Is there a better alternative?
Yes! It isn't sitting at home—it's wearing a custom-made mouthguard when there's a risk of facial injury.
Most people don't ski or play hockey without protective gear like a helmet. A mouthguard can effectively protect against dental injury that might otherwise be serious. Available here at the dental office, a custom mouthguard is made from an exact model of your own teeth, so it's comfortable to wear and fits perfectly—but no safety equipment can work if you don't use it!
So whether you like to hit the trails or the gym this winter, don't forget to bring a custom-made mouthguard. It's a small piece of gear that can save you from a big headache!
If you would like more information on mouthguards, please contact us or schedule a consultation. You can learn more by reading the Dear Doctor magazine articles “Athletic Mouthguards” and “An Introduction to Sports Injuries & Dentistry.”
On the big screen, Australian-born actress Margot Robbie may be best known for playing devil-may-care anti-heroes—like Suicide Squad member Harley Quinn and notorious figure skater Tonya Harding. But recently, a discussion of her role in Peter Rabbit proved that in real life, she’s making healthier choices. When asked whether it was hard to voice a character with a speech impediment, she revealed that she wears retainers in her mouth at night, which gives her a noticeable lisp.
“I actually have two retainers,” she explained, “one for my bottom teeth which is for grinding my teeth, and one for my top teeth which is just so my teeth don't move.”
Clearly Robbie is serious about protecting her dazzling smile. And she has good reasons for wearing both of those retainers. So first, let’s talk about retainers for teeth grinding.
Also called bruxism, teeth grinding affects around 10 percent of adults at one time or another, and is often associated with stress. If you wake up with headaches, sore teeth or irritated gums, or your sleeping partner complains of grinding noises at night, you may be suffering from nighttime teeth grinding without even being aware of it.
A type of retainer called an occlusal guard is frequently recommended to alleviate the symptoms of bruxism. Typically made of plastic, this appliance fits comfortably over your teeth and prevents them from being damaged when they rub against each other. In combination with stress reduction techniques and other conservative treatments, it’s often the best way to manage teeth grinding.
Orthodontic retainers are also well-established treatment devices. While appliances like braces or aligners cause teeth to move into better positions, retainers are designed to keep teeth from moving—helping them to stay in those positions. After active orthodontic treatment, a period of retention is needed to allow the bite to stabilize. Otherwise, the teeth can drift right back to their old locations, undoing the time and effort of orthodontic treatment.
So Robbie has the right idea there too. However, for those who don’t relish the idea of wearing a plastic appliance, it’s often possible to bond a wire retainer to the back surfaces of the teeth, where it’s invisible. No matter which kind you choose, wearing a retainer can help keep your smile looking great for many years to come.
If you have questions about teeth grinding or orthodontic retainers, please contact our office or schedule a consultation. You can read more in the Dear Doctor magazine articles “Teeth Grinding” and “The Importance of Orthodontic Retainers.”
A couple of years ago the Associated Press published an article claiming the health benefits of flossing remained unproven. The article cited a number of studies that seemed to conclude the evidence for the effectiveness of flossing in helping to prevent dental disease as “weak.”
As you can imagine, dental providers were a bit chagrined while flossers everywhere threw away their dental floss and happily declared their independence from their least favorite hygiene task. It would have seemed the Age of Flossing had gone the way of the dinosaurs.
But, the demise of flossing may have been greatly exaggerated. A new study from the University of North Carolina seems to contradict the findings cited in the AP article. This more recent study looked at dental patients in two groups—those who flossed and those who didn’t—during two periods of five and ten years respectively. The new study found conclusively that the flosser group on average had a lower risk of tooth loss than the non-flossers.
While this is an important finding, it may not completely put the issue to rest. But assuming it does, let’s get to the real issue with flossing: a lot of people don’t like it, for various reasons. It can be time-consuming; it can be messy; and, depending on a person’s physical dexterity, difficult to perform.
On the latter, there are some things you can do to make it a less difficult task. You can use a floss threader, a device that makes it easier to thread the floss through the teeth. You can also switch to an oral irrigator or “water flosser,” a pump device that sprays a fine, pressurized stream of water to break up plaque between teeth and flush most of it away. We can also give you tips and training for flossing with just your fingers and thread.
But whatever you do, don’t give up the habit. It may not be your most favorite hygiene task but most dentists agree it can help keep your teeth healthy for the long-term.
Braces can be a long, involved process, but gaining a more attractive smile and better oral health is worth it. Sometimes, though, braces can produce unintended short-term consequences.
Brace brackets and wires do the work of moving teeth to better positions. They can, however, hinder the wearer's hygiene efforts to remove plaque, a thin film of bacteria and food particles, from tooth surfaces. Plaque buildup increases the risk of dental disease and other ill effects.
One such effect while you're wearing braces is the formation of tiny spots that look pale and chalky on otherwise smooth and polished enamel. These are white spot lesions (WSLs), where acid has remained for too long on the tooth enamel. They occur because acid-producing bacteria escape removal during brushing and flossing due to the braces hardware.
We want to try to prevent WSLs while wearing braces, and not just because they're unattractive. You're actually looking at enamel erosion, which could lead to cavity development at those weakened spots.
Although difficult for you as a braces wearer, daily brushing and flossing is crucial to WSL prevention. You'll need to take more time to be sure you're reaching all around the wires and brackets. You can improve your effectiveness with special brushes for braces and floss threaders or water irrigators. You can also help keep acid levels low by cutting back on acidic foods and beverages, especially sodas, coffee or spicy foods.
Even if you develop WSLs we can treat them effectively, especially if caught early. One way is by aiding enamel re-mineralization through saliva stimulation (the mouth's acid neutralizer) or applying fluoride to the teeth to strengthen enamel. We can also use caries infiltration, a technique that injects tooth-colored resin below the surface of the lesion. This strengthens the weakened enamel and gives the area the appearance of translucence like normal enamel.
While you're wearing braces, focus diligently on keeping your teeth clean of plaque and keep up your regular cleaning visits with us. If you notice any unusual discolorations or abnormalities, see us as soon as possible. Stopping WSLs from developing will help ensure your teeth are healthy and attractive after the braces come off.
If you would like more information on dental care with braces, 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 “White Spots on Teeth during Orthodontic Treatment.”
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