Posts for tag: orthodontic treatment
At what age should you begin treating a poor bite? Many might say with braces around late childhood or early adolescence. But some bite problems could be addressed earlier—with the possibility of avoiding future orthodontic treatment.
A crossbite is a good example. In a normal bite, all of the upper teeth slightly cover the lower when the jaws are shut. But a crossbite occurs when some of the lower teeth, particularly in back, overlap the upper teeth. This situation often happens when the upper jaw develops too narrowly.
But one feature of a child's mouth structure provides an opportunity to intervene and alter jaw development. During a child's early years, the palate (roof of the mouth) consists of two bones next to each other with an open seam running between them. This seam, which runs through the center of the mouth from front to back, will fuse during puberty to form one continuous palatal bone.
An orthodontist can take advantage of this separation if the jaw isn't growing wide enough with a unique device called a palatal expander. This particular oral appliance consists of four, thin metal legs connected to a central mechanism. The orthodontist places the expander against the palate and then uses the mechanism to extend the legs firmly against the back of the teeth on both sides of the jaw.
The outward pressure exerted by the legs also widens the seam between the two palatal bones. The body will respond to this by adding new bone to the existing palatal bones to fill in the widened gap. At regular intervals, the patient or a caregiver will operate the mechanism with a key that will continue to widen the gap between the bones, causing more expansion of the palatal bones until the jaw has grown to a normal width.
The palatal expander is most effective when it's applied early enough to develop more bone before the seam closes. That's why it's important for children to undergo bite evaluation with an orthodontist around age 6. If it appears a bite problem is developing, early interventions like a palatal expander could slow or stop it before it gets worse.
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 “Palatal Expanders.”
We instinctively know when a smile looks normal—and when it doesn't. It could be that something simply looks out of place like crooked teeth. But we might also notice when something is missing—as with one or both of the canine teeth.
The canine teeth align just under the eyes and are recognizable by their pointed ends. When they're missing, the smile looks “incomplete.” But “missing” in this case could mean “invisible”—the teeth are there, but hidden within the gums because they failed to come in properly and became impacted. This often happens on a smaller jaw where other teeth have crowded into the space intended for them.
Fortunately, we may have a remedy, and not just for appearance's sake—any impacted tooth can cause health problems, from gum abscesses to root damage of neighboring teeth. Although this might necessitate their surgical removal, we might also be able to coax them through the gums into better position in the jaw, if they're in a reasonably good position. This could result in both a boost to a patient's oral health and a more normal looking smile.
First, though, a patient will need to undergo a thorough bite evaluation by an orthodontist. Besides pinpointing the impacted teeth's precise location with x-rays or CT technology, an orthodontist will also want to assess the positions and condition of the rest of the teeth. If the conditions are right and there's enough room in the jaw, the orthodontist may recommend drawing the impacted canines into proper alignment in the jaw.
The process starts when an oral surgeon exposes the impacted teeth by surgically cutting through the gum tissue. They then attach a small bracket to the tooth with a tiny metal chain attached, the other end of which is looped over orthodontic hardware attached to other teeth. The tension on the chain by the hardware gradually nudges the teeth downward out of the gums. This is usually done in coordination with other measures to fully correct the bite.
If the procedure is successful, bringing the canines out of impaction reduces the problems those teeth could cause the person's oral health. But just as important, it can restore normality to their smile.
If you would like more information on treating impacted teeth, 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 “Exposing Impacted Canines.”
In any given year, 4 million tweens and teens are in the process of having their teeth straightened with braces or clear aligners. It's so common we tend to consider orthodontic treatment for young people as a rite of passage into adulthood.
But it doesn't necessarily have to be that way—it might be possible to stop or at least minimize a poor bite before it fully develops. That's the goal of interceptive orthodontics—treatments that head off or “intercept” a bite problem early.
The goal isn't necessarily to reposition misaligned teeth, but to correct a problem that can lead to misalignment. Here are some examples.
A narrow jaw. A narrowly developing jaw can crowd incoming teeth out of their normal positions. For the upper jaw, though, we can take advantage of a temporary separation in the bones in the roof of the mouth (palate) with a device called a palatal expander. Placed against the palate, the expander exerts outward pressure on the teeth and jaw to widen this separation. The body fills in the gap with bone to gradually widen the jaw.
Abnormal jaw alignment. It's possible for a jaw to develop abnormally during childhood so that it extends too far beyond the other. Using a hinged device called a Herbst appliance, it's possible to interrupt this abnormal growth pattern and influence the bones and muscles of the jaw to grow in a different way.
Missing primary teeth. An important role for a primary (baby) tooth is to hold a place for the future permanent tooth. But if the primary tooth is lost too soon, other teeth can drift into the space and crowd out the intended permanent tooth. To prevent this, we can insert a space maintainer: This simple looped metal device prevents teeth from drifting and preserves the space for the permanent tooth.
Although these and other interceptive treatments are effective, some like the palatal expander do their best work within a limited age frame. To take advantage of interceptive orthodontics in a timely manner, parents should seek a bite evaluation for their child from an orthodontist around age 6. The earlier we detect a growing bite problem, the greater your chances for successful intervention.
If you would like more information on treating emerging bite problems early, 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.”
Dentists remove millions of teeth each year, often because of tooth decay or gum disease. But disease isn't the only reason—a tooth extraction might make it easier to straighten a crooked smile.
Realigning teeth for therapeutic or cosmetic reasons is a regular undertaking in dentistry, but the process itself often differs from person to person. Each individual patient requires their own treatment plan taking into account factors like the kind of bite problem involved, the size of the jaw and the space available to move teeth.
This plan could indeed involve removing teeth. For example, an abnormally small jaw could cause crowding. Not only can crowding move teeth out of position, it may also leave little to no room for moving teeth. Although dentists can minimize crowding by influencing jaw development in early childhood, removing teeth for more space is usually the only option available to older adolescents and adults.
Similarly, teeth can fail to erupt properly and remain partially or fully submerged beneath the gums (known as impaction). There is an orthodontic method for pulling an impacted tooth fully onto the jaw, but only if the tooth isn't too far out of alignment. Otherwise, it may be better to remove the impacted tooth and then correct any gaps with braces or a dental implant.
There's also a situation on the opposite side of the spectrum that could benefit from teeth removal—when one or more permanent teeth fail to form, known as congenitally missing teeth. This can cause gaps in the smile or a “lopsided” appearance where a tooth on one side of the jaw is present while its counterpart on the opposite side of the jaw is missing.
The missing tooth can be replaced by an implant, bridge or other restoration. But another option may be to remove the existing counterpart tooth, and then close the gaps. This can result in a much more attractive smile that might be simpler and less costly than replacing the missing tooth.
Again, the decision to remove teeth to improve smile appearance depends on the patient and their particular dental condition. But in the right situation, it could make straightening a smile easier and more effective.
If you would like more information on orthodontic treatments, 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 “Removing Teeth for Orthodontic Treatment.”
You can't correct a poor bite with braces or clear aligners overnight: Even the most cut-and-dried case can still require a few years to move teeth where they should be. It's a welcome relief, then, when you're finally done with braces or aligner trays.
That doesn't mean, however, that you're finished with orthodontic treatment. You now move into the next phase—protecting your new smile that took so much to gain. At least for a couple of more years you'll need to regularly wear an orthodontic retainer.
The name of this custom-made device explains its purpose: to keep or “retain” your teeth in their new, modified positions. This is necessary because the same mechanism that allows us to move teeth in the first place can work in reverse.
That mechanism centers around a tough but elastic tissue called the periodontal ligament. Although it primarily holds teeth in place, the ligament also allows for tiny, gradual tooth movement in response to mouth changes. Braces or aligner trays take advantage of this ability by exerting pressure on the teeth in the direction of intended movement. The periodontal ligament and nature do the rest.
But once we relieve the pressure when we remove the braces or aligners, a kind of “muscle memory” in the ligament can come into play, causing the teeth to move back to where they originally were. If we don't inhibit this reaction, all the time and effort put into orthodontic treatment can be lost.
Retainers, either the removable type or one fixed in place behind the teeth, gently “push” or “pull” against the teeth (depending on which type) just enough to halt any reversing movement. Initially, a patient will need to wear their retainer around the clock. After a while, wear time can be reduced to just a few hours a day, usually during sleep-time.
Most younger patients will only need to wear a retainer for a few years. Adults who undergo teeth-straightening later in life, however, may need to wear a retainer indefinitely. Even so, a few hours of wear every day is a small price to pay to protect your beautiful straightened smile.
If you would like more information on orthodontic 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 “The Importance of Orthodontic Retainers.”