Posts for: October, 2017
When you think orthodontics, you may instantly picture braces or clear aligners worn by teenagers or adults. But there’s more to orthodontics than correcting fully developed malocclusions (poor bites). It’s also possible to intervene and potentially reduce a malocclusion’s future severity and cost well beforehand.
Known as interceptive orthodontics, these treatments help guide jaw growth in children while mouth structures are still developing and more pliable. But timing is critical: waiting until late childhood or puberty could be too late.
For example, we can influence an upper jaw developing too narrowly (which can cause erupting teeth to crowd each other) with an expander appliance placed in the roof of the mouth. The expander exerts slight, outward pressure on the upper jaw bones. Because the bones haven’t yet fused as they will later, the pressure maintains a gap between them that fills with additional bone that eventually widens the jaw.
Functional appliances like the Herbst appliance influence muscle and bone development in the jaws to eventually reshape and reposition them. The Herbst appliance utilizes a set of metal hinges connected to the top and bottom jaws; when the patient opens and closes their jaws the hinges encourage the lower jaw to move (and eventually grow) forward. If successful, it could help a patient avoid more invasive treatments like tooth extraction or jaw surgery.
Some interceptive objectives are quite simple in comparison like preserving the space created by a prematurely lost primary tooth. If a child loses a primary tooth before the incoming permanent tooth is ready to erupt, the nearby teeth can drift into the empty space. Without enough room, the permanent tooth could erupt out of position. We can hold the space with a simple loop device known as a space maintainer: usually made of acrylic or metal, the device fits between adjacent teeth and prevents them from drifting into the space until the permanent tooth is ready to come in.
Interceptive orthodontics can have a positive impact on your child’s jaw development, now and in the future. For these techniques to be effective, though, they must begin early, so be sure your child has a complete orthodontic evaluation beginning around age 7. You may be able to head off future bite problems before they happen.
Have you heard about interceptive orthodontics? This type of early intervention could benefit perhaps 10â??20% of children who need orthodontic treatment, making a positive impact on tooth and jaw development, facial symmetry, and overall self esteem. In case you’re not familiar with it, here are the answers to some common questions about interceptive orthodontic treatment.
Q: What’s the difference between interceptive orthodontics and regular orthodontics?
A: Standard orthodontic treatment typically involves moving teeth into better positions (usually with braces or aligners), and can be done at any age. Interceptive orthodontics uses a variety of techniques to influence the growth and development of teeth and jaws, with the aim of improving their function and appearance. Because it works with the body’s natural growth processes, interceptive treatment is most effective before the onset of puberty (around age 10-14), when growth begins to stop. It is generally not appropriate for adults.
Q: What are the advantages of early treatment with interceptive orthodontics?
A: When it’s done at the right time, interceptive treatment offers results that would be difficult or impossible to achieve at an older age without using more complex or invasive methods — for example, tooth extraction or jaw surgery. That’s why the American Association of Orthodontists, among other professional organizations, recommends that all kids have their first orthodontic screening at age 7.
Q: What are some common issues that can be treated with interceptive orthodontics?
A: One is crowding, where there is not enough room in the jaw to accommodate all the permanent teeth with proper spacing in between. A palatal expander can be used to create more room in the jaw and avoid the need for tooth extraction. Another is a situation where the top and bottom jaws don’t develop at the same rate, resulting in a serious malocclusion (bad bite). A number of special appliances may be used to promote or restrict jaw growth, which can help resolve these problems.
Q: How long does interceptive orthodontic treatment take?
A: Depending on what’s needed, a child might wear a device like a palatal expander or another type of appliance for 6-12 months, followed by a retainer for a period of time. Or, a space maintainer may be left in place for a period of months to hold a place for a permanent tooth to erupt (emerge from the gums). Interceptive treatment ends when a child’s jaw stops growing.
Q: Will braces still be needed after interceptive treatment?
A: Often, but not always, the answer is yes. However, interceptive treatment may shorten the period of time where braces need to be worn, and can help prevent many problems later on.
If you have additional questions about interceptive orthodontics, please contact our office or schedule a consultation. You can learn more in the Dear Doctor magazine article “Early Orthodontic Evaluation.”