Posts for: May, 2018
It’s true — thumb sucking beyond age 4 can cause bite problems for permanent teeth. But prolonged thumb sucking is just one of a number of possible contributing factors for a bad bite (malocclusion). A dentist must identify all the factors involved when a bad bite is present — their involvement is essential for a successful treatment outcome.
A fairly benign habit for infants and toddlers, thumb sucking is related to an “infantile swallowing pattern” young children use by thrusting their tongues forward between the upper and lower teeth when they swallow. Around age 4, though, they usually transition to an adult swallowing pattern in which the tongue rests on the roof of the mouth just behind the front teeth. Thumb sucking stops for most children around the same time.
Thumb sucking beyond this age, though, can put increased pressure on incoming permanent teeth pushing them forward. This could lead to an “open bite” in which the upper and lower teeth don’t meet when the jaws are closed. The tongue may also continue to thrust forward when swallowing to seal the resulting gap, which further reinforces the open bite.
Before treating the bite with braces, we must first address the thumb sucking and improper tongue placement when swallowing — if either isn’t corrected the teeth could gradually revert to their previous positions after the braces come off. Besides behavioral incentives, we can also employ a thin metal appliance called a “tongue crib” placed behind the upper and lower incisors. A tongue crib discourages thumb sucking and makes it more difficult for the tongue to rest within the open bite gap when swallowing, which helps retrain it to a more normal position.
An open bite can also occur if the jaws develop with too much vertical growth. Like thumb sucking and improper tongue placement, abnormal jaw growth could ultimately cause orthodontic treatment to fail. In this case, though, surgery may be necessary to correct the jaw structure.
With all these possible variables, our first step needs to be a thorough orthodontic exam that identifies all the cause factors for your child’s specific malocclusion. Knowing if and how thumb sucking may have contributed to the poor bite will help us design a treatment strategy that’s successful.
If you would like more information on the causes of poor tooth position, 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 “How Thumb Sucking Affects the Bite.”
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.
Are bleeding gums something you should be concerned about? Dear Doctor magazine recently posed that question to Dr. Travis Stork, an emergency room physician and host of the syndicated TV show The Doctors. He answered with two questions of his own: “If you started bleeding from your eyeball, would you seek medical attention?” Needless to say, most everyone would. “So,” he asked, “why is it that when we bleed all the time when we floss that we think it’s no big deal?” As it turns out, that’s an excellent question — and one that’s often misunderstood.
First of all, let’s clarify what we mean by “bleeding all the time.” As many as 90 percent of people occasionally experience bleeding gums when they clean their teeth — particularly if they don’t do it often, or are just starting a flossing routine. But if your gums bleed regularly when you brush or floss, it almost certainly means there’s a problem. Many think bleeding gums is a sign they are brushing too hard; this is possible, but unlikely. It’s much more probable that irritated and bleeding gums are a sign of periodontal (gum) disease.
How common is this malady? According to the U.S. Centers for Disease Control, nearly half of allÂ Americans over age 30 have mild, moderate or severe gum disease — and that number increases to 70.1 percent for those over 65! Periodontal disease can occur when a bacteria-rich biofilm in the mouth (also called plaque) is allowed to build up on tooth and gum surfaces. Plaque causes the gums to become inflamed, as the immune system responds to the bacteria. Eventually, this can cause gum tissue to pull away from the teeth, forming bacteria-filled “pockets” under the gum surface. If left untreated, it can lead to more serious infection, and even tooth loss.
What should you do if your gums bleed regularly when brushing or flossing? The first step is to come in for a thorough examination. In combination with a regular oral exam (and possibly x-rays or other diagnostic tests), a simple (and painless) instrument called a periodontal probe can be used to determine how far any periodontal disease may have progressed. Armed with this information, we can determine the most effective way to fight the battle against gum disease.
Above all, don’t wait too long to come in for an exam! As Dr. Stork notes, bleeding gums are “a sign that things aren’t quite right.” Â If you would like more information about bleeding gums, please contact us or schedule an appointment. You can read more in the Dear Doctor magazine article “Bleeding Gums.” You can read the entire interview with Dr. Travis Stork in Dear Doctor magazine.