শনিবার, ৭ সেপ্টেম্বর, ২০১৩

Adults smile and bear it / / Braces aren't just for children at all

For numerous youths with badly aligned teeth, putting on braces is just another adolescent rite of passage. Yet much more grownups are also recognizing the perks of deciding to "smile and bear it.".
The lot of people previous age 21 who've chosen orthodontic therapy has actually increased in the last many years. Today, of the more than 4 million Americans that are receiving orthodontic treatment, one in five is grownup.

Treatment for malaligned teeth is possible even if you are age 50, 60 or beyond. But it's important that you discuss your expectations with an orthodontist (a dentist who specializes in the diagnosis, prevention and treatment of dental and facial irregularities) before undergoing treatment.

Although there are several types of braces, they all work on the same principle. Teeth are "harnessed" together, usually with wires that are adjusted periodically to exert the proper amount of corrective tension on your teeth. This front-to-back, side-to-side and rotary pressure moves each tooth within the bone that surrounds it. Ultimately, the tooth socket is repositioned.

Regardless of your age, this corrective progress can make your teeth sore as they respond to the shifting forces of braces. If you are older, however, there may be more discomfort because adult teeth usually do not move as easily as those of a younger person. Among adults, root cavities or gum disease also can complicate treatment.

On the positive side, adults usually are highly motivated and willing to take the necessary steps to ensure a successful outcome. Treatment sometimes can take up to three years. Many insurance programs now cover at least part of the cost.

Among reasons for considering braces: To improve your appearance. Braces can help align your teeth if they protrude, recede or crowd one another. Orthodontic treatment often results in a more pleasing smile, which can boost your self-esteem.

Proper realignment of your teeth through orthodontic treatment also can help prevent gum disease - a possibility because crowded or badly aligned teeth are more difficult to keep clean. To correct an improper bite. An improper bite (which dental professionals call a malocclusion) can put pressure on your teeth in the wrong places. As a result, the enamel that covers your teeth can wear away prematurely when you bite down. In more extreme cases, the tissue and bone that hold the root of the tooth in place may loosen to the point that your tooth falls out. Left untreated, the problem rarely gets better and often becomes worse.
Types of orthodontic devices: Here are the orthodontic devices most commonly used today to straighten malaligned teeth: Traditional metal braces. The conventional form of orthodontic treatment, metal braces, gave rise to all those schoolyard nicknames: "metal mouth," "tin grin" and the like. Jokes aside, they remain a highly effective treatment.

Several years ago, the first step of this treatment was for an orthodontist to cement a stainless steel band with an attachment bracket on the front of it around each tooth. Today, only a small stainless steel attachment bracket is mechanically bonded to the front of each tooth.

Once all the brackets are bonded in place, a U-shaped guide wire is threaded through them. This guide wire, which runs across the front from molar to molar, is connected to brackets on each individual tooth by thinner wires. Newer guide wires, made of nickel and titanium, are lighter and more resilient, allowing more gentle pressure and requiring fewer adjustments. Ceramic or plastic braces. Orthodontists now offer a newer style of braces made of a clear ceramic or plastic. The major advantage of these models is that, from a few feet away, they are virtually invisible. This, of course, can reduce your self-consciousness from wearing braces.
Despite their aesthetic advantages, ceramic and plastic models have drawbacks. Ceramics are more expensive than traditional metal braces, and plastic braces are more likely to show stains from tobacco or caffeine. There have also been reports that the enamel of the wearer's teeth can be damaged during removal of the ceramic braces, although this complication is rare. Lingual braces. Sometimes referred to as "inside" or "invisible" braces, lingual braces are metal brackets affixed to the back of your teeth.

Although less noticeable than traditional braces, they are difficult for an orthodontist to fit. Other disadvantages: They cost more, may need to be worn longer, sometimes need more frequent adjustments and may irritate your tongue or interfere with your speech. Also, these braces generally can't be used when your orthodontic treatment includes jaw surgery. Retainers. After your orthodontist removes your braces, the final stage of your treatment involves wearing a device called a retainer. These devices help "retain" your teeth in their corrected position.

A retainer typically is made of a combination of two materials: an acrylic piece that is custom-molded to the roof of your mouth, and a strong, smooth guide wire that runs lengthwise across the front of your teeth. Gentle pressure from the retainer keeps your teeth in proper alignment.

In some cases, a retainer wire can be mechanically bonded to the back of your teeth to hold them in place. Removable appliances. These devices, popular in Europe, are less commonly recommended in this country but may be suitable for minor orthodontic problems. Removable appliances primarily move teeth only forward or backward to correct under- or overbites. But they also can straighten a single tooth or an entire row of teeth.

These devices have several advantages: They are less expensive than traditional braces, and you can easily slip them out of your mouth. You may be able to wear them only at night or when you are alone.
Future shock: Some researchers are considering sending a low-voltage electrical current through metal braces into the bone that surrounds the teeth. In theory, the electrical stimulation may speed up the realignment process, but there is no evidence to date that this approach works.

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