Posts for: October, 2017
Your temporomandibular joints (TMJ), located where your lower jaw meets the skull, play an essential role in nearly every mouth function. It’s nearly impossible to eat or speak without them.
Likewise, jaw joint disorders (temporomandibular joint disorders or TMD) can make your life miserable. Not only can you experience extreme discomfort or pain, your ability to eat certain foods or speak clearly could be impaired.
But don’t assume you have TMD if you have these and other symptoms — there are other conditions with similar symptoms. You’ll need a definitive diagnosis of TMD from a qualified physician or dentist, particularly one who’s completed post-graduate programs in Oral Medicine or Orofacial Pain, before considering treatment.
If you are diagnosed with TMD, you may then face treatment choices that emanate from one of two models: one is an older dental model based on theories that the joint and muscle dysfunction is mainly caused by poor bites or other dental problems. This model encourages treatments like orthodontically moving teeth, crowning problem teeth or adjusting bites by grinding down tooth surfaces.
A newer treatment model, though, has supplanted this older one and is now practiced by the majority of dentists. This is a medical model that views TMJs like any other joint in the body, and thus subject to the same sort of orthopedic problems found elsewhere: sore muscles, inflamed joints, strained tendons and ligaments, and disk problems. Treatments tend to be less invasive or irreversible than those from the dental model.
The newer model encourages treatments like physical therapy, medication, occlusive guards or stress management. The American Association of Dental Research (AADR) in fact recommends that TMD patients begin their treatment from the medical model rather than the dental one, unless there are indications to the contrary. Many studies have concluded that a majority of patients gain significant relief with these types of therapies.
If a physician or dentist recommends more invasive treatment, particularly surgery, consider seeking a second opinion. Unlike the therapies mentioned above, surgical treatments have a spotty record when it comes to effectiveness — some patients even report their conditions worsening afterward. Try the less-invasive approach first — you may find improvement in your symptoms and quality of life.
If you would like more information on treating TMD, 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 “Seeking Relief from TMD.”
While crooked teeth are usually responsible for a malocclusion (poor bite), the root cause could go deeper: a malformed maxilla, a composite structure composed of the upper jaw and palate. If that’s the case, it will take more than braces to correct the bite.
The maxilla actually begins as two bones that fit together along a center line in the roof of the mouth called the midline suture, running back to front in the mouth. The suture remains open in young children to allow for jaw growth, but eventually fuses during adolescence.
Problems arise, though, when these bones don’t fully develop. This can cause the jaw to become too narrow and lead to crowding among the erupting teeth and a compromised airway that can lead to obstructive sleep apnea. This can create a cross-bite where the upper back teeth bite inside their lower counterparts, the opposite of normal.
We can remedy this by stimulating more bone growth along the midline suture before it fuses, resulting in a wider maxilla. We do this by installing a palatal expander, an appliance that incrementally widens the suture to encourage bone formation in the gap, which over time will widen the jaw.
An expander is a metal device with “legs” extending out on both sides and whose ends fit along the inside of the teeth. A gear mechanism in the center extends the legs to push against the teeth on both sides of the jaw. Each day the patient or caregiver uses a key to give the gear a quarter turn to extend the legs a little more and widen the suture gap. We remove the expander once the jaw widens to the appropriate distance.
A palatal expander is an effective, cost-efficient way to improve a bite caused by a narrow jaw, but only if attempted before the bones fuse. Widening the jaw after fusion requires surgery to separate the bones — a much more involved and expensive process.
To make sure your child is on the right track with their bite be sure to see an orthodontist for an evaluation around age 6. Doing so will make it easier to intervene at the proper time with treatments like a palatal expander, and perhaps correct bite problems before they become more expensive to treat.
If you would like more information on treating malocclusions, 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: Orthodontics is more than just Moving Teeth.”