Posts for tag: palatal expanders

By Dentistry For Children & Adults
December 20, 2013
Category: Dental Procedures
CaughtEarlyCross-BitescanbeCorrectedWithPalatalExpanders

There’s more to orthodontics than simply moving teeth. Especially with children and adolescents, we also want to guide the development of the entire facial structure to solve certain types of malocclusions (poor bites).

One such concern involves the upper jaw and palate (roof of the mouth), known collectively as the maxilla. In some individuals, the maxilla is narrower than normal. This causes the upper teeth to fit abnormally inside the lower teeth when occluding or “biting down” and is known as a cross-bite. A cross-bite may restrict the amount of space for your teeth to erupt (appear in the mouth) in proper alignment. It can be so severe the individual may have to shift the jaw to one side to completely bite down.

If a cross-bite is caught early, there’s a non-surgical treatment to widen the maxilla and help prevent upper teeth misalignment. But there’s a limited time window of opportunity: this is because the maxilla is actually formed by two bones with a seam that runs down the middle of the palate. The two bones will eventually fuse, usually at the beginning of puberty; until then there’s a slight separation.

Before the bones fuse, we can use a palatal expander to widen this seam and encourage permanent bone growth in the resulting gap. The expander is made of two metal halves joined in the middle by a small screw device that fits between the teeth. You or your child turns the screw a very small amount once or twice a day with a special key and the action pushes the maxilla outward on either side: the slight tension created stimulates bone growth. Over time, the new bone will have added width to the maxilla and eliminated the cross-bite.

While it’s possible to correct this after the maxilla fuses, it will require surgery to separate the bones. The palatal expander helps us correct the problem in the most non-invasive way possible, but it must be done before puberty. Discovering this type of malocclusion early is one of many reasons why regular dental visits should be an important part of your child’s healthcare.

If you would like more information on palatal extenders, 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.”

By Dentistry For Children & Adults
August 29, 2013
Category: Dental Procedures
IntroducingthePalatalExpander

Is there a single orthodontic appliance that can help your child get a wider, better-looking smile, correct problems with the bite, make room in a crowded upper jaw for new teeth to erupt (come in)... and shorten the overall time he or she will need to wear braces? The answer is yes: It's the palatal expander, a device that works with the natural growth patterns of a child's mouth, and offers dramatic results.

What's a palatal expander? Basically, it's a custom-made orthodontic appliance that fits between the rows of back teeth at the top (roof) of the mouth, close to the palate. After it has been put in place, it can be tensioned with a special key. Because it is contained inside the mouth, it's invisible when worn — but its benefits are easy to see.

How does it work? The palatal expander takes advantage of the fact that the left and right halves of a child's upper jaw bone don't completely fuse (knit together) until sometime after puberty. Until that happens, the upper jaw is relatively soft and easy to manipulate. When tension is applied, the palatal expander gently moves the bones apart, just like braces do for teeth. Then new bone tissue naturally fills in the space.

The appliance is tightened daily for a few weeks — while spacing improves dramatically — and then it's left on for several weeks more to stabilize the expansion. The total time a child needs to wear it is generally 3-6 months. After that, a set of braces can be put on if needed. So, what's so great about a palatal expander?

For one thing, the device can correct a crossbite, which occurs when the back top teeth bite inside (instead of outside) the bottom teeth. For another, expanding the upper jaw can relieve the condition known as crowding, which happens when the jaw isn't big enough to accommodate all the teeth. A related situation — impacted teeth — occurs when a tooth that hasn't yet erupted is blocked by another tooth above it. Both these conditions formerly required tooth extraction: an invasive and sometimes complicated procedure. Both can now be remedied by a palatal expander.

But maybe the biggest plus to a youngster — where a month can seem like an age — is the prospect of having to wear braces for less time. And that alone is a good reason to smile.

If you have questions about palatal expanders, please contact us or schedule an appointment for a consultation. You can learn more in the Dear Doctor magazine articles “Palatal Expanders” and “The Magic of Orthodontics.”