Posts for category: Oral Health
Baby (primary) teeth look and function much like their permanent counterparts. Besides having a visible crown, they also have roots that maintain contact with the jawbone.
But there are some differences, the biggest one being the normal process whereby primary tooth roots dissolve or, in dental terms, resorb. Root resorption eventually leads to the tooth coming loose to make way for the permanent tooth.
Adult tooth roots can also resorb — but it's decidedly not normal. If adult root resorption isn't promptly treated, it could also lead to tooth loss — but there won't be an incoming tooth to take its place.
Although it can begin inside a tooth, adult root resorption usually begins on the outside. One type, external cervical resorption (ECR), begins around the neck-like area of the tooth not far below the gum line. Its initial signs are small pink spots where the tooth enamel has eroded; those pink cells within the space are doing the damage.
We don't fully understand the mechanism behind ECR, but there are some factors that often contribute. People with periodontal ligament damage or trauma, sometimes due to too much force applied during orthodontic treatment, have a high risk of ECR. Some bleaching techniques for staining inside a tooth may also be a factor.
The key to treating ECR is to detect it as early as possible before it does too much root damage. Regular checkups with x-rays play a pivotal role in early detection. Advanced stages of ECR might require more advanced diagnostics like a cone beam computed tomography (CBCT) scan to fully assess the damage.
If the lesion is small, we can surgically remove the cells causing the damage and fill the site with a tooth-colored filling. If ECR has spread toward the pulp, the tooth's inner nerve center, we may also need to perform a root canal treatment.
Either of these methods intends to save the tooth, but there is a point where the damage is too great and it's best to remove the tooth and replace it with a life-like dental implant or other restoration. That's why it requires vigilance through regular, semi-annual dental visits to detect the early signs of root resorption before it's too late.
If you would like more information on adult tooth root resorption, 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 Resorption.”
We've known for decades that fluoride strengthens tooth enamel and lowers the risk for decay. And while adding it to toothpaste and drinking water are the more common ways for getting it into the body, an increasingly popular way—especially for children—is to apply fluoride directly to the teeth.
But is topical fluoride really worth the effort and expense? And, are there any side effects to treating teeth this way?
As to the first question, researchers have performed numerous studies measuring fluoride's effectiveness for preventing tooth decay. The Cochrane Oral Health Research Group recently reviewed studies on topical fluoride applications involving nearly 10,000 children and adolescents between the ages of 2 and 15. The combined average for all the studies showed a 28% reduction in decayed teeth for patients who received topical fluoride compared to those who didn't.
This was especially true for children at high risk for decay: directly applying fluoride gels, foams or varnishes to teeth reduces that risk substantially. But there are also side effects to this application. Fluoride in general has only one known safety concern, a condition known as fluorosis. Too much fluoride over time can cause heavy discoloration of the teeth. This does not affect the health of the teeth, but it can look unattractive and require cosmetic treatment to reduce its effect.
There's little to no risk for fluorosis with the controlled treatments offered by dentists; the fluoride solution remains on the teeth no more than a few minutes. But there is a possible side effect during treatment due to the relatively high dose of fluoride used. If the patient accidentally swallows some of the solution, the concentration of fluoride can cause stomach upset, vomiting or headaches.
Dentists minimize the chances for this by usually using the more difficult to swallow varnish form of topical fluoride on younger patients, and using trays or other barrier devices to isolate the fluoride solution from the rest of the mouth. Under professional supervision, it's rare for an accidental ingestion to occur.
The risks for these side effects are quite low, and the benefits of topical fluoride for reducing the chances for decay can more than outweigh them. Fluoride applications are one of many ways we can protect your child's current and future dental health.
If you would like more information on decay prevention techniques like topical fluoride, 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 Gels Reduce Decay.”
A "toothy grin" might be endearing, but not necessarily healthy. More of the teeth showing may mean your gums have pulled back or receded from the teeth. If so, it's not just your smile that suffers—the parts of teeth protected by the gums could become more susceptible to disease.
There are a number of causes for gum recession. Some people are more likely to experience it because of genetically thinner gum tissues. Over-aggressive brushing could also contribute to recession. But the most common cause by far is periodontal (gum) disease, a bacterial infection triggered by dental plaque accumulating on teeth mainly as a result of inadequate hygiene.
There are some things we can do to help heal and restore recessed gums, most importantly treating gum disease. The number one goal of treatment is to uncover and remove all dental plaque from tooth and gum surfaces, which can take several sessions and sometimes minor surgery if the infection has reached the tooth roots. But removing plaque and tartar (calcified plaque) is necessary to stop the infection and allow the gums to heal.
For mild recession, this may be enough for the gums to regain normal coverage. But in more severe cases we may need to help rejuvenate new tissue with grafting surgery. In these highly meticulous procedures a surgeon uses microscopic techniques to position and attach donated tissue to the recession site. The graft serves as a scaffold on which new tissue growth can occur.
While these treatments can be effective for reversing gum recession, they often require time, skill and expense. It's much better to try to prevent gum recession—and gum disease—in the first place. Prevention begins with daily brushing and flossing to prevent plaque buildup, as well as regular dental visits for more thorough cleanings. Be on the lookout too for any signs of a beginning gum infection like swollen, reddened or bleeding gums and see your dentist as soon as possible to minimize any damage to your gums.
Caring for your gums is equally as important as caring for your teeth. Healthy gums equal a healthy mouth—and an attractive smile.
If you would like more information on preventing 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.”
When it comes to our children’s safety, there isn’t much nowadays that isn’t under scrutiny. Whether food, clothing, toys and more, we ask the same question: can it be harmful to children?
That also includes tried and true healthcare practices. One in particular, the routine x-ray, has been an integral part of dental care for nearly a century. As a means for detecting tooth decay much earlier than by sight, it has without a doubt helped save billions of teeth.
But is it safe for children? The reason to ask is because x-rays are an invisible form of electromagnetic radiation that can penetrate human tissue. As with other forms of radiation, elevated or frequent exposure to x-rays could damage tissue and increase the future risk of cancer.
But while there is potential for harm, dentists take great care to never expose patients, especially children, to that level or frequency of radiation. They incorporate a number of safeguards based on a principle followed by all healthcare professionals in regard to x-rays called ALARA, an acronym for “as low as reasonably achievable.” This means dentists and physicians use as low an exposure of x-ray energy as is needed to achieve a reasonable beneficial outcome. In dentistry, that’s identifying and treating tooth decay.
X-ray equipment advances are a good example of ALARA in action. Digital imaging, which has largely replaced film, requires less x-ray radiation for the same results than its older counterpart. Camera equipment has also become more efficient, with modern units containing lower settings for children to ensure the proper amount of exposure.
Dentists are also careful how often they take x-ray images with their patients, only doing so when absolutely necessary. As a result, dental patients by and large experience lower dosages of x-ray radiation in a year than they receive from natural radiation background sources found every day in the environment.
Dentists are committed to using x-ray technology in as safe and beneficial a way as possible. Still, if you have concerns please feel free to discuss it further with your dental provider. Both of you have the same goal—that your children have both healthy mouths and healthy bodies for the rest of their lives.
If you would like more information on x-ray safety for children, 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 “X-Ray Safety for Children.”
Along with daily brushing and flossing, limiting your child’s sugar consumption is an important way to prevent tooth decay. We all know the usual suspects: candy, sugar-added snacks and sodas. But there’s one category you may not at first think fits the profile—juices. But even natural juices with no added sugar can raise your child’s risk of tooth decay if they’re drinking too much.
Tooth decay is caused by certain strains of bacteria in the mouth, which produce acid. Sugar in any form (sucrose, fructose, maltose, etc.) is a primary food source for these bacteria. When there’s a ready food source, bacteria consume it and produce abnormally high levels of acid. This can cause the mineral content of tooth enamel to dissolve faster than saliva, which neutralizes acid, can reverse the tide.
Juices without added sugar still contain the natural sugar of the fruit from which they originate. The American Academy of Pediatrics conducted a study of the effect of these natural juice sugars on dental health. Their conclusion: it can have an effect, so the amount of juice consumed daily by a child should be restricted according to age.
They’ve since published guidelines to that effect:
- Under age 1 (or any child with abnormal weight gain): no juice at all;
- Ages 1-3: no more than 4 ounces a day;
- Ages 4-6: no more than 6 ounces a day;
- Ages 7-18: no more than 8 ounces (1 cup) a day.
Again, these are guidelines—you should also discuss the right limits for your individual child with your dentist or pediatrician. And if you’re wondering what kind of beverages pose less risk of tooth decay, you can look to low or non-fat milk. And, of course, don’t forget water—besides containing no sugar, nature’s hydrator has a neutral pH, so it won’t increase acidity in the mouth.
Tooth decay is one of the biggest health problems many kids face. But with good teeth-friendly habits, including restricting sugar intake in any of its many forms (including juices) you can go a long way in reducing their risk of this destructive disease.