Poor bites, also known as “malocclusions,” can have a dramatic impact on mouth function and appearance. Moving teeth to better positions will solve most of these bite problems — but not all.
A case in point is a malformed maxilla, the skeletal structure formed by the union of the upper jaw and the roof of the mouth (the palate). If the rear portion of the maxilla develops too narrowly, the back teeth will bite abnormally inside the lower teeth while the front teeth bite normally, creating what’s known as a crossbite. People with this kind of malocclusion often shift their lower jaw to one side to bite down completely.
This can be corrected without too much intervention if the problem is diagnosed while the person is young. This is because the maxilla is actually formed from two bones that don’t completely fuse together in the center of the palate until just after puberty. An orthodontic appliance known as a palatal expander takes advantage of this slight gap. The metal appliance is placed along the narrowed portion of the palate in the rear of the mouth: four metal “arms,” two on each side, attach to the inside of the back teeth with a tension device between them that extends the arms outward to put pressure against the teeth.
Every day the patient or a parent uses a special key to turn the tension device and cause it to expand slightly, placing additional outward pressure on the jaw. This will widen the gap in the center of the palate and new bone will grow to fill in the increased space. Over time this will cause the rear portion of maxilla to widen.
While effective, a palatal expander may not work in every case, and it must be done before the two bones fuse permanently. When it can be used, though, it’s a proven treatment that can restore proper bite function, as well as improve your child’s smile.
If you would like more information on palatal expanders to correct certain bite problems, 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.”
There are many new and exciting ways now to transform an unattractive smile into one you'll be confident to display. But not all “smile makeover” techniques are new — one in particular has been around for generations: using braces to correct crooked teeth.
Braces have improved the smiles (and also dental health) for millions of people. But as commonplace this orthodontic treatment is, it wouldn't work at all if a natural mechanism for moving teeth didn't already exist. Braces “partner” with this mechanism to move teeth to better positions.
The jawbone doesn't actually hold teeth in place — that's the job of an elastic gum tissue between the teeth and bone called the periodontal ligament. Tiny fibers extending from the ligament attach to the teeth on one side and to the bone on the other. In addition to securing them, the dynamic, moldable nature of the ligament allows teeth to move incrementally in response to forces applied against them.
To us, the teeth feel quite stationary (if they don't, that's a problem!). That's because there's sufficient length of the tooth roots that are surrounded by bone, periodontal ligament and gum tissue. But when pressure is applied against the teeth, the periodontal ligament forms both osteoblasts (bone-forming cells) and osteoclasts (bone-resorbing cells) causing the bone to remodel. This allows the teeth to move to a new position.
Braces take advantage of this in a controlled manner. The orthodontist bonds brackets to the outside face of the teeth through which they pass a thin metal wire. They attach the ends of the wire to the brackets (braces), usually on the back teeth. By using the tension placed in the wire, the orthodontist can control the gradual movement of teeth to achieve proper function and aesthetics. The orthodontist continues to monitor the treatment progress, while making periodic adjustments to the tension.
It takes time, but through this marvelous interplay between nature and dental science you'll gain a more healthy and beautiful smile.
If you would like more information on improving your smile with orthodontics, 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 “Moving Teeth with Orthodontics.”
What do dentures, retainers and nightguards have in common? Along with orthodontic aligners and athletic mouthguards, they’re all types of removable dental appliances. They also share another commonality: each one depends on the wearer caring for it to ensure its longevity.
The most important thing you can do for your appliance is to clean it regularly. Don’t use toothpaste, though, even with dentures: while your natural tooth enamel can handle the abrasive particles in toothpaste, your appliance’s materials may not. Toothpaste can create tiny scratches that can harbor disease-causing bacteria. Instead, use liquid dish detergent or hand soap with warm water.
Although boiling water may disinfect your appliance, it’s not advisable to use. Even hot water can distort plastic components and warp the appliance’s fit in your mouth. Likewise, don’t use bleach, which can fade the plastic color used to resemble gum tissue and break down the material’s composition. When you clean your appliance, use a brush — but not the one you use for your natural teeth. Use a soft toothbrush, a nail brush or a specialized brush for appliances like dentures.
You should also protect your appliance from damage. Some appliances like dentures have parts that can break if they’re dropped on a hard surface — like the porcelain in your sink. To prevent this, place a towel in the sink to cushion the appliance if it accidentally slips from your hand during cleaning. And when the appliance isn’t in your mouth, don’t keep it on a low table or night stand where small children or pets can easily get their hands (or paws) on it.
And one more thing: don’t wear your denture appliance around the clock — take it out, for instance, while you sleep. Leaving dentures in interferes with the acid-neutralizing and antibacterial function of your mouth’s saliva, which could increase your risk of disease (and bad breath).
Appliances can be an expensive investment in your dental health. By following these guidelines you’ll help protect that investment for years to come.
If you would like more information on caring for your dental appliance, 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 “10 Tips for Cleaning Your Oral Appliance.”
Children's permanent teeth normally erupt over several years after first forming below the gum line. All their permanent teeth should come in by the time they reach early adolescence.
Unfortunately, this process doesn't always happen as it should. If the erupting teeth become crowded due to a poor bite (malocclusion), teeth still to come in may not have enough room to fully erupt. They become impacted, a condition in which the visible crown remains partially or completely submerged below the gum line.
Impacted teeth create consequences for other teeth and dental health overall. They more readily cause abscesses (a localized infection within the gum tissue) and can damage the roots of nearby teeth. Impacted front canine (eye) teeth can interfere with bite function and their visual absence mars an otherwise attractive smile.
If your child's canine teeth have failed to erupt properly, there is a way to help them fully come in if you act before their mouth structure fully matures. The first step is an orthodontic evaluation of their entire bite. This will determine if there's enough space to move other teeth to make room for the impacted canines.
If so, we would then find the exact position of the impacted teeth using x-rays and possibly cone beam CT scanning for a detailed three-dimensional image. The teeth could be in a variety of positions, such as angled toward the roof of the mouth or cheek or buried high in the jawbone. If the teeth are too far out of position the best course of action may be to remove them and replace them later with a dental implant.
If the impacted teeth, though, are in a feasible position for retrieval, we first expose each tooth through the gums with a minor surgical procedure and bond a small bracket to it. We then attach a small gold chain to the bracket that loops over an orthodontic appliance attached to other teeth. The appliance will exert pressure over several months to pull the tooth into proper position.
If successful, your child will gain the use of these important teeth and a more attractive appearance. But don't delay — this desired outcome will become much harder if not impossible to attain as their teeth and jaws continue to develop.
If you would like more information on treating impacted teeth, 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 “Exposing Impacted Canines.”
A child with a chronic illness or condition often requires a lot of focus on care for their special needs. Other aspects of their health can often take a back seat — too often including dental care.
Proper dental care can be a challenge for special needs children if they have diminished physical, intellectual or behavioral capacities. Children with autism or attention deficit disorders may not be able or willing to perform tasks like brushing and flossing. Other conditions could make them intolerant to toothpaste in the mouth, or create an inability to keep their mouths open or to spit.
Some chronic conditions also seem predisposed to dental defects. For example, enamel hypoplasia, a lack of sufficient tooth enamel, is common with Down, Treacher-Collins or Turner Syndromes, and can greatly increase the risk of tooth decay.
But even though difficult, effective dental care isn't impossible. It begins with your dental provider.
Pediatric dentists are often excellent in this regard: they often have the training and experience to treat children with chronic conditions. Whoever you choose must be able to partner with you in caring for your child's dental needs.
Daily hygiene is also a critical factor. Your goal should be the same as with any child — to teach them to brush and floss for themselves. Depending on their condition, however, you may need to assist them for a longer term, perhaps permanently. But it is imperative — daily hygiene is their best defense against oral diseases.
You should also consider their medication and how it may impact their dental health. Antidepressants, antihistamines or drugs that assist with breathing function can cause mouth dryness. This, as well as drugs with sugar or acid compounds, can increase risk for dental disease. If they must take these types of medications, try to give them at mealtime to reduce their effect in the mouth.
Above all, pursue the same professional dental care as you would for any other child. Keep up regular dental visits beginning around their first birthday for cleanings and preventive measures like topical fluoride or sealants. By taking these measures you'll help ensure their dental health won't suffer.
If you would like more information on dental care for special needs children, 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 “Managing Tooth Decay in Children with Chronic Diseases.”
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