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.”
Besides attractively showcasing your teeth, your gums protect your teeth and underlying bone from bacteria and abrasive food particles. Sometimes, though, the gums can pull back or recede from the teeth, leaving them exposed and vulnerable to damage and disease.
Here are 4 things that could contribute to gum recession—and what you can do about them.
Periodontal (gum) disease. This family of aggressive gum infections is by far the most common cause for recession. Triggered mainly by bacterial plaque, gum disease can cause the gums to detach and then recede from the teeth. To prevent gum disease, you should practice daily brushing and flossing and see your dentist at least twice a year to thoroughly remove plaque. And see your dentist as soon as possible for diagnosis and treatment at the first sign of red, swollen or bleeding gums.
Tooth position. While a tooth normally erupts surrounded by bone, sometimes it erupts out of correct alignment and is therefore outside the bony housing and protective gum tissue. Orthodontic treatment to move teeth to better positions can correct this problem, as well as stimulate the gum tissues around the involved teeth to thicken and become more resistant to recession.
Thin gum tissues. Thin gum tissues, a quality you inherit from your parents, are more susceptible to wear and tear and so more likely to recede. If you have thin gum tissues you'll need to stay on high alert for any signs of disease or problems. And you should also be mindful of our next common cause, which is….
Overaggressive hygiene. While it seems counterintuitive, brushing doesn't require a lot of "elbow grease" to remove plaque. A gentle scrubbing motion over all your tooth surfaces is usually sufficient. On the other hand, applying too much force (or brushing too often) can damage your gums over time and cause them to recede. And as we alluded to before, this is especially problematic for people with thinner gum tissues. So brush gently but thoroughly to protect your gums.
If you would like more information on treating gum recession, 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 Recession.”
A “gummy” smile, in which the upper gums are too prominent, is a common condition. There are several causes for gummy smiles — determining which one is the first step to having your appearance changed.
Although perceptions vary from person to person, most dentists agree a gummy smile shows 4 mm or more of gum tissue, and the amount is out of proportion with the length of the crown (the visible tooth). Teeth normally erupt through the gums during childhood and continue development until early adulthood, shrinking back from the tooth until stabilizing in place.
This typically produces a crown length of about 10 mm, with a “width to length” ratio of about 75-85%. But variations can produce differences in the relationship between teeth and gums and the width to length ratio of the teeth. The teeth may appear shorter and the gums more prominent. Worn teeth, caused by aging or grinding habits, may also appear shorter.
If tooth to gum proportionality is normal, then the cause may be upper lip movement. When we smile, muscles cause our lips to retract 6-8 mm from the lip’s resting position. If the amount of movement is greater (meaning the lip is hypermobile), it may show too much of the gums. The upper jaw can also extend too far forward and cause the gums to appear too prominent.
There are a number of ways to improve gummy smiles, depending on the cause. Periodontal plastic surgery known as crown lengthening removes and reshapes excess gum tissue to reveal more of the tooth. Lip hypermobility can be reduced with Botox injections (to paralyze the muscles) or in some cases with surgery to reposition the muscle attachments. Orthognathic surgery can be used to surgically reposition an overextended upper jaw. Other cosmetic enhancements such as orthodontics, bonding or porcelain restorations can also prove effective.
The first step is to obtain an accurate diagnosis for your gummy smile. From there, we can devise the best treatment approach to bring your smile back into a more attractive proportion.
If you would like more information on minimizing a gummy smile, 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 “Gummy Smiles.”
For anyone else, having a tooth accidentally knocked out while practicing a dance routine would be a very big deal. But not for Dancing With The Stars contestant Noah Galloway. Galloway, an Iraq War veteran and a double amputee, took a kick to the face from his partner during a recent practice session, which knocked out a front tooth. As his horrified partner looked on, Galloway picked the missing tooth up from the floor, rinsed out his mouth, and quickly assessed his injury. “No big deal,” he told a cameraman capturing the scene.
Of course, not everyone would have the training — or the presence of mind — to do what Galloway did in that situation. But if you’re facing a serious dental trauma, such as a knocked out tooth, minutes count. Would you know what to do under those circumstances? Here’s a basic guide.
If a permanent tooth is completely knocked out of its socket, you need to act quickly. Once the injured person is stable, recover the tooth and gently clean it with water — but avoid grasping it by its roots! Next, if possible, place the tooth back in its socket in the jaw, making sure it is facing the correct way. Hold it in place with a damp cloth or gauze, and rush to the dental office, or to the emergency room if it’s after hours or if there appear to be other injuries.
If it isn’t possible to put the tooth back, you can place it between the cheek and gum, or in a plastic bag with the patient’s saliva, or in the special tooth-preserving liquid found in some first-aid kits. Either way, the sooner medical attention is received, the better the chances that the tooth can be saved.
When a tooth is loosened or displaced but not knocked out, you should receive dental attention within six hours of the accident. In the meantime, you can rinse the mouth with water and take over-the-counter anti-inflammatory medication (such as ibuprofen) to ease pain. A cold pack temporarily applied to the outside of the face can also help relieve discomfort.
When teeth are broken or chipped, you have up to 12 hours to get dental treatment.Â Follow the guidelines above for pain relief, but don’t forget to come in to the office even if the pain isn’t severe. Of course, if you experience bleeding that can’t be controlled after five minutes, dizziness, loss of consciousness or intense pain, seek emergency medical help right away.
And as for Noah Galloway:Â In an interview a few days later, he showed off his new smile, with the temporary bridge his dentist provided… and he even continued to dance with the same partner!
If you would like more information about dental trauma, please contact us or schedule an appointment for a consultation. You can learn more in the Dear Doctor magazine articles “Trauma & Nerve Damage to Teeth” and “The Field-Side Guide to Dental Injuries.”
Tooth decay is as relentless as it is destructive, and it makes little distinction between age, gender, ethnicity or social status. Although risk levels vary from person to person, we’re all potentially in the crossfire for this harmful disease. Getting ahead of it early could save your teeth.
Tooth decay begins with oral bacteria. While feeding on dental plaque that accumulates on the teeth, bacteria multiply and produce acid as a by-product. Too much acid softens and erodes tooth enamel, which enables decay to advance deeper into the tooth.
If it isn’t stopped, decay can eventually infect and weaken the roots and bone, and ultimately lead to a lost tooth. By stopping it as early as possible before it reaches the inner pulp and root canals, we can greatly limit the damage.
Regular dental care is crucial for early detection. Here’s how we can stay ahead of developing decay during dental visits.
Visible inspection. There are visible signs a trained dentist may notice that point to tooth decay. Besides an already formed hole or cavity, we might also pick up on other unusual appearances like white spot lesions: these slight blemishes often occur in the areas of contact with other teeth, which we can treat with topical fluoride.
X-rays. This tried and true diagnostic tool has been a mainstay of dental care for nearly a century. The images they produce can indicate decay as darker spots or areas on or within the tooth that may not yet be visible to the eye. And with advances in digital processing and more streamlined equipment, we can effectively do this with a very low dosage of radiation exposure.
Advanced technology. We’ve developed other means for better disease detection that complement x-rays and visual inspections. Specialized microscopes and lasers are now important tools for analyzing suspected areas of early decay.
Even if decay gets a foothold we can effectively stop it and restore a tooth with a root canal treatment or a similar procedure. The best outcome, though, is to not allow this destructive disease to get that far. With dedicated oral hygiene and regular dental visits that uncover early decay, chances are good your teeth can remain healthy for a lifetime.
If you would like more information on fighting 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 “Tooth Decay: How to Assess Your Risk.”
This website includes materials that are protected by copyright, or other proprietary rights. Transmission or reproduction of protected items beyond that allowed by fair use, as defined in the copyright laws, requires the written permission of the copyright owners.