Posts for: February, 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.”
You might not be aware how much force your jaws generate while you eat or chew. But you can become aware in a hurry when part of your inside cheek or lip gets in the way.
What may be even worse than the initial painful bite are the high odds you’ll bite the same spot again—and again. That’s because of a feature in the skin’s healing process.
As a surface wound heals, it often forms a cover of fibrous tissue consisting of the protein collagen. This traumatic fibroma, as it’s called, is similar to a protective callous that develops on other areas of damaged skin. In the process, though, it can become “taller” than the surrounding skin surface, which increases the chances of another bite.
This second bite often results in more fibrous tissue formation that rises even higher from the skin surface, which then becomes more likely to be bit again. After repeated cycles, the initial wound can become a noticeable, protruding lump.
These kinds of sores are typically not cancerous, especially if they’ve appeared to form slowly over time. But they can be a nuisance and the occasion of sharp pain with every subsequent bite. There is, though, an effective way to deal with it—simply have it removed.
While it involves a surgical procedure—an oral surgeon, periodontist or dentist with surgical training usually performs it—it’s fairly minor. After numbing the area with a local anesthetic, the dentist will then completely excise the lesion and close the resulting gap in the skin with two or three small sutures (it could also be removed with a laser). The wound should heal within a few days leaving you with a flat, flush skin surface.
The tissue removed is usually then biopsied. Although it’s highly unlikely it was more than an annoying sore, it’s still common procedure to examine excised tissues for cancer cells. If there appears to be an abnormality, your dentist will then see you to take the next step in your treatment.
More than likely, though, what you experienced was a fibroma. And with it now a thing of the past, you can chew with confidence knowing it won’t be there to get in the way.
If you would like more information on dealing with common mouth sores, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor article “Common Lumps and Bumps in the Mouth.”
Due to financial circumstances, people often have a lost tooth restored with a removable partial denture, an effective appliance that restores function and a degree of aesthetic appearance. Later, though, they may want to improve both function and appearance with a dental implant.
If this describes you, you’re making a great choice. Dental implants are the closest technology we have to a natural tooth. But there may be a roadblock to your implant, especially if a long time has passed since your tooth loss—there may not be enough bone at the site to place an implant.
The heart of an implant is a titanium metal post surgically imbedded in the jawbone. The titanium naturally attracts bone cells, which grow and adhere to it to form a solid hold that can support a porcelain crown or other restorations like bridges or dentures. But to achieve a natural appearance it’s important that the implant is placed in the right location. To achieve that requires adequate bone.
But there may not be adequate bone if the tooth has been missing for a while. The forces generated when we chew travel through the teeth to the jawbone, which stimulates bone growth. If that stimulus is absent because of a missing tooth, new bone cells may not replace older ones at a healthy rate and the total bone volume begins to diminish. A denture can’t compensate and, in fact, accelerates bone loss.
But there may be a solution: bone grafting. With this procedure we place a donor bone graft into the area of bone deficiency some time before implant surgery. The graft serves as a scaffold for new bone cells to grow upon. Hopefully, this will produce enough healthy bone to support an implant. If the bone deficiency is minor, we may place the implant and the bone graft at the same time.
If you have experienced bone loss, we must first determine the amount of bone at the missing tooth site and whether grafting is a viable option. Bone grafting postpones your implant, but the delay will be worth the wait if we’re successful. With increased bone volume you’ll be able to obtain a new tooth that’s superior to your current restoration.