Posts for: March, 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.”
Your baby will grow into an adult so rapidly it will seem like they're changing right before your eyes. And some of the biggest changes will happen with their teeth, gums and jaw structure.
Unfortunately, disease or a traumatic accident could short-circuit this natural process and potentially create future dental problems. Here are 4 things you should be doing now to protect your baby's long-term dental health.
Start oral hygiene now. Even if your baby has no visible teeth, there may still be something else in their mouth—bacteria, which could trigger future tooth decay. To reduce bacteria clean their gums with a clean, wet cloth after each feeding. When teeth begin to appear switch to brushing with just a smear of toothpaste on the brush to minimize what they swallow.
Make your baby's first dental appointment. Beginning dental visits around your baby's first birthday will not only give us a head start on preventing or treating tooth decay, but could also give us a better chance of detecting other developing issues like a poor bite (malocclusion). Early dental visits also help get your child used to them as routine and increase the likelihood they'll continue the habit as adults.
Watch their sugar. Bacteria love sugar. So much so, they'll multiply—and more bacteria mean an increase in one of their by-products, mouth acid. Increased mouth acid can erode tooth enamel and open the way for decay. So, limit sugary snacks to only meal time and don't give them sugary drinks (including juices, breast milk or formula) in a bottle immediately before or while they sleep.
Childproof your home. A number of studies have shown that half of all accidents to teeth in children younger than 7 happen from falling on home furniture. So, take precautions by covering sharp edges or hard surfaces on chairs, tables or sofas, or situate your child's play areas away from furniture. And when they get older and wish to participate in sports activities purchase a custom mouthguard to protect their teeth from hard knocks—an investment well worth the cost.
If you would like more information on dental care for your child, 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 “Top 10 Oral Health Tips for Children.”