Posts for: July, 2020
Approximately 4 million tweens and teens are currently undergoing orthodontic treatment for a poor bite (malocclusion) that can cost their families thousands of dollars in braces or clear aligners. But treatment doesn't always have to follow this track: Found early, many malocclusions can be corrected or minimized before they fully develop.
Known as interceptive orthodontics, this particular approach to bite correction often begins as early as 6-10 years of age. Rather than move existing teeth, interceptive orthodontics focuses instead on redirecting jaw growth and intervening in other situations that can cause malocclusions.
For example, a child's upper jaw may not be growing wide enough to accommodate all incoming permanent teeth, crowding later arrivals out of their proper positions. But taking advantage of a gap during early childhood that runs through the center of the palate (roof of the mouth), orthodontists can increase jaw width with a device called a palatal expander.
The expander fits up against the palate with “legs” that extend and make contact with the inside of the teeth. With gradually applied pressure, the expander widens the central gap and the body naturally fills it with new bone cells. The bone accumulation causes the jaws to widen and create more room for incoming teeth.
Another way a malocclusion can develop involves the primary or “baby” teeth. As one of their purposes, primary teeth serve as placeholders for the future permanent teeth forming in the gums. But if they're lost prematurely, adjacent teeth can drift into the vacant space and crowd out incoming teeth.
Dentists prevent this with a space maintainer, a thin metal loop attached to the adjoining teeth that puts pressure on them to prevent them from entering the space. This spacer is removed when the permanent tooth is ready to erupt.
These and other interceptive methods are often effective in minimizing the formation of malocclusions. But it's often best to use them early: Palatal expansion, for example, is best undertaken before the central gap fuses in early puberty, and space maintainers before the permanent tooth erupts.
That's why we recommend that children undergo an orthodontic evaluation around age 6 to assess their early bite development. If a malocclusion looks likely, early intervention could prevent it and reduce future treatment costs.
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.”
Millions of people have obstructive sleep apnea—and some don’t even realize it. That’s because even though these airway-blocking episodes can occur several times a night, they may only last a few seconds. The brain rouses the body just long enough to open the airway but not long enough to awaken the person to consciousness.
Even though a person with sleep apnea might not remember what happened to them, they can still experience the effects of sleep disturbance: drowsiness, irritability or an inability to focus. Over time, the accumulation of “bad sleep” could increase their risk for heart disease or other life-threatening conditions.
But there are effective ways to alleviate or lessen obstructive sleep apnea. The main “go-to” treatment is a method called continuous positive airway pressure (CPAP). CPAP utilizes an electric pump that supplies a constant flow of pressurized air through a mask worn by the patient while sleeping. The increased air pressure around the throat helps keep the airway open.
But although it’s effective, CPAP is unpopular with many people who have tried it. Many find the hose and other equipment cumbersome, or the mask too uncomfortable or restrictive to wear. As a result, quite a number simply avoid using it.
If you’ve had a similar experience with CPAP or would rather explore other options, we may have an alternative: an oral appliance you wear while you sleep. It can help prevent or lessen symptoms in cases of mild to moderate airway obstruction caused by the tongue or other forms of tissue.
Sleep apnea appliances come in two basic forms. One uses metal hinges to help move the lower jaw and tongue forward. The other form has a compartment that fits around the tongue and applies suction to help keep the tongue moved forward.
These appliances may not be suitable for patients with severe sleep apnea or whose cause is something other than a physical obstruction like abnormal neurological signaling patterns. But where they are appropriate, they can be an effective alternative to CPAP and the key to a better night’s sleep.
If you would like more information on this dental solution for sleep apnea, 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 “Oral Appliances for Sleep Apnea.”
The straightening process for a crooked smile doesn't end when the braces come off. There's one more crucial phase to undergo to make sure we don't lose the progress you've achieved: wearing an orthodontic retainer.
Although often viewed as a nuisance, retainers are important because they prevent realigned teeth from reverting to their old positions. This is possible because the periodontal ligament, the gum attachment that allows us to move teeth in the first place, can contain “muscle memory” that naturally tries to draw teeth back to where they once were.
A retainer prevents this from happening: During wear the subtle pressure they exert keeps or “retains” the teeth in their new positions until they're firmly established, usually after several months. While most patients initially wear a retainer around the clock, this will gradually taper off until they're worn primarily during sleep hours.
While retainers come in many different styles and sizes, most fall into one of two categories: removable or non-removable (bonded). The first type, a custom-made appliance a patient can easily take in and out of the mouth, has its advantages. Removing it makes it easier to clean the teeth. They're also adaptable to reduced wear schedules for eating, brushing and flossing, or for special occasions.
But a removable retainer may be noticeable to others. Its removability can also lead to problems. Out of the mouth they're prone to be lost, resulting in additional replacement costs. And immature patients may be easily tempted to take them out too often—or not wear them at all.
A bonded retainer solves many of these potential problems. Because the retainer wire is securely bonded to the back of the teeth, it's not visible to others. And because it can't be removed except by an orthodontist, there's virtually no chance of losing it or haphazard wear.
On the other hand, bonded retainers can occasionally break, requiring repair or replacement. And flossing is more difficult than with a removable retainer, although a little training from a dental hygienist can make that easier.
The choice of retainer depends on the individual and their priorities. But whether removable or bonded, a retainer is absolutely essential for protecting your new, hard-earned smile.
If you would like more information on bonded 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 “Bonded Retainers.”