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Posts for tag: retainers

KeepYourNewStraightenedSmileStraightWithanOrthodonticRetainer

You can't correct a poor bite with braces or clear aligners overnight: Even the most cut-and-dried case can still require a few years to move teeth where they should be. It's a welcome relief, then, when you're finally done with braces or aligner trays.

That doesn't mean, however, that you're finished with orthodontic treatment. You now move into the next phase—protecting your new smile that took so much to gain. At least for a couple of more years you'll need to regularly wear an orthodontic retainer.

The name of this custom-made device explains its purpose: to keep or “retain” your teeth in their new, modified positions. This is necessary because the same mechanism that allows us to move teeth in the first place can work in reverse.

That mechanism centers around a tough but elastic tissue called the periodontal ligament. Although it primarily holds teeth in place, the ligament also allows for tiny, gradual tooth movement in response to mouth changes. Braces or aligner trays take advantage of this ability by exerting pressure on the teeth in the direction of intended movement. The periodontal ligament and nature do the rest.

But once we relieve the pressure when we remove the braces or aligners, a kind of “muscle memory” in the ligament can come into play, causing the teeth to move back to where they originally were. If we don't inhibit this reaction, all the time and effort put into orthodontic treatment can be lost.

Retainers, either the removable type or one fixed in place behind the teeth, gently “push” or “pull” against the teeth (depending on which type) just enough to halt any reversing movement. Initially, a patient will need to wear their retainer around the clock. After a while, wear time can be reduced to just a few hours a day, usually during sleep-time.

Most younger patients will only need to wear a retainer for a few years. Adults who undergo teeth-straightening later in life, however, may need to wear a retainer indefinitely. Even so, a few hours of wear every day is a small price to pay to protect your beautiful straightened smile.

If you would like more information on orthodontic retainers, 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 “The Importance of Orthodontic Retainers.”

HowKathyBatesRetainsHerMovie-StarSmile

In her decades-long career, renowned actress Kathy Bates has won Golden Globes, Emmys, and many other honors. Bates began acting in her twenties, but didn't achieve national recognition until she won the best actress Oscar for Misery — when she was 42 years old! “I was told early on that because of my physique and my look, I'd probably blossom more in my middle age,” she recently told Dear Doctor magazine. “[That] has certainly been true.” So if there's one lesson we can take from her success, it might be that persistence pays off.

When it comes to her smile, Kathy also recognizes the value of persistence. Now 67, the veteran actress had orthodontic treatment in her 50's to straighten her teeth. Yet she is still conscientious about wearing her retainer. “I wear a retainer every night,” she said. “I got lazy about it once, and then it was very difficult to put the retainer back in. So I was aware that the teeth really do move.”

Indeed they do. In fact, the ability to move teeth is what makes orthodontic treatment work. By applying consistent and gentle forces, the teeth can be shifted into better positions in the smile. That's called the active stage of orthodontic treatment. Once that stage is over, another begins: the retention stage. The purpose of retention is to keep that straightened smile looking as good as it did when the braces came off. And that's where the retainer comes in.

There are several different kinds of retainers, but all have the same purpose: To hold the teeth in their new positions and keep them from shifting back to where they were. We sometimes say teeth have a “memory” — not literally, but in the sense that if left alone, teeth tend to migrate back to their former locations. And if you've worn orthodontic appliances, like braces or aligners, that means right back where you started before treatment.

By holding the teeth in place, retainers help stabilize them in their new positions. They allow new bone and ligaments to re-form and mature around them, and give the gums time to remodel themselves. This process can take months to years to be complete. But you may not need to wear a retainer all the time: Often, removable retainers are worn 24 hours a day at first; later they are worn only at night. We will let you know what's best in your individual situation.

So take a tip from Kathy Bates, star of the hit TV series American Horror Story, and wear your retainer as instructed. That's the best way to keep your straight new smile from changing back to the way it was — and to keep a bad dream from coming true.

If you would like more information about orthodontic retainers, please contact us or schedule an appointment for a consultation. You can learn more about this topic in the Dear Doctor magazine articles “Why Orthodontic Retainers?” and “The Importance of Orthodontic Retainers.” The interview with Kathy Bates appears in the latest issue of Dear Doctor.

By Preferred Dental
February 28, 2014
Category: Dental Procedures
Tags: orthodontics   retainers  
RetainersTheFinalSteptoaGreatNewSmile

As soon as the braces come off, many people feel that the hard work in getting a new smile is all done. But wait! There's one critical piece of the process that remains: the orthodontic retainer. What makes this little device so important?

To understand that, let's look at how your teeth are attached, and how they may move. A tooth isn't anchored into the jaw like a screw in wood — it's joined to its bony housing by a unique, hammock-like suspension system called the periodontal (“peri” – around; “odont” – tooth) ligament. The periodontal tissues are living, constantly changing and renewing themselves.

Orthodontic appliances like braces are designed to apply just enough pressure to move the teeth slowly and steadily into new positions. As the teeth are moved, the periodontal tissue gradually re-forms around them, helping to hold them in their new locations.

But tooth, bone and gum tissues also have a “memory” which, if left alone, tends to move the teeth rapidly back to their original places. This unwanted movement gradually lessens, but it can be an issue for a long time after treatment. That's where the retainer comes in.

This little device holds the teeth steady in their new positions until the bones and ligaments have had enough time to re-form — a development that can take several months. It brings the entire process of moving the teeth to a gradual close, helps to prevent trauma and to maintain proper tooth location.

Once, all retainers were made of plastic and wire, and all were removable. These are still popular, and are usually worn 24 hours a day at first, then less often, until (after a period of time) they're only worn at night. Alternatively, in many cases a thin wire can be bonded to the inside surfaces of the front teeth. This type of retainer doesn't show, and it doesn't have to be removed.

How long will you have to wear it? It's hard to say. Teeth are kept in position not only by bone and ligament, but also by a balance of forces between the tongue, lips and cheeks. They aren't permanently fixed in place, but can move over time in a way that's unique to every person. Depending on the type of tooth movement done, we can recommend what type of retainer is right for you, and how often to wear it. Having the right retainer will help ensure you get the best result: a great new smile.

If you would like more information about orthodontic retainers, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine articles “Why Orthodontic Retainers?” and “The Importance of Orthodontic Retainers.”