Posts for: January, 2019
Along with the gums, your teeth’s roots help stabilize them. Without them your teeth couldn’t handle the normal biting forces you encounter every day. That’s why a rare condition called root resorption must be treated promptly: this gradual breakdown and dissolving of root structure could eventually cause you to lose your tooth.
Resorption is normal in primary (“baby”) teeth giving way for permanent teeth or sometimes during orthodontic treatment. But the form of resorption we’re referring to in permanent teeth isn’t normal, and is highly destructive.
The condition begins in most cases outside the tooth and works its way in, usually at the gum line around the cervical or “neck-like” region of the tooth (hence the term external cervical resorption or ECR). ECR produces pink spots on the teeth in its early stages: these are spots of weakened enamel filled with pink-colored cells that cause the actual damage. The cells create cavity-like areas that can continue to enlarge.
We don’t fully understand what causes ECR, but there seems to be links with excessive force during orthodontics, tooth trauma (especially to the gum ligaments), tooth grinding habits or internal bleaching procedures. However, most people with these problems don’t develop ECR, so the exact mechanism remains a bit of a mystery.
The good news, though, is that we can treat ECR effectively, provided we discover it before it inflicts too much damage. That’s why regular dental visits are important, coupled with your own observation of anything out of the ordinary and immediate dental follow-up.
If the affected area is relatively small, we may be able to remove the cells causing the damage and repair the area with a tooth-colored filling. If it appears the pulp (the tooth’s innermost layer) is involved, we may need to perform a root canal treatment to remove infected tissue and fill the empty space with a special filling. You may also need other procedures to reduce the chances of gum recession around the affected tooth.
Proactive dental care is your best insurance against losing a tooth to root resorption. So keep an eye on your teeth and see your dentist regularly to keep your teeth and gums healthy.
If you would like more information on the signs and treatments for 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: An Unusual Phenomenon.”
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.”
While orthodontists can effectively correct most poor bites (malocclusions), some can be quite complex requiring much time and expense. But there's good news—we often don't have to wait on a malocclusion to fully develop if we catch it in time. Thanks to interceptive orthodontics, we may be able to intervene much earlier and eliminate or reduce the degree of difficulty with treatment.
Interceptive orthodontics is a group of techniques and devices used in early childhood to help deter a possible malocclusion. Here are 3 ways this approach could make a difference in your child's bite development.
Guiding jaw growth. On a normal-sized upper jaw, the permanent teeth usually have ample room to erupt. Not so with a smaller jaw: incoming teeth become crowded and may erupt out of alignment or too close to each other. Orthodontists often use a device called a palatal expander to aid an under-sized jaw in its development. The device fits along the roof of the mouth between the teeth and applies gradual outward pressure on them. This encourages the jaw to widen as it grows, thus providing more room for erupting teeth to come in properly and decrease the chances of obstructive sleep apnea in the future.
Reshaping and repositioning jaw bones. An overbite can occur when the jaws aren't properly aligned, often due to poor muscle and bone development. This is where devices like the Herbst appliance are useful. Its hinge mechanism encourages the lower jaw to grow further forward. The jaws can thus develop in a more normal way, minimizing the development of a malocclusion.
Maintaining space. Primary ("baby") teeth are important for dental development because they help guide future permanent teeth to erupt properly; they also keep nearby teeth from drifting into the intended space. But when a primary tooth is lost prematurely due to disease or trauma, the space can become vulnerable to this kind of "drift." With a simple mechanism called a space maintainer we can hold open the space created by a prematurely lost primary tooth until the permanent tooth is ready to erupt.
These and other techniques can help stop bad bites from developing in young children, minimizing or even eliminating the need for future orthodontic treatment. That means a healthier mouth for your child and less impact on your wallet.
If you would like more information on interceptive orthodontics, 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 “Interceptive Orthodontics: Timely Intervention can make Treatment Easier.”