Posts for: February, 2021
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.”
In recent years, dental implants have helped traditional bridgework take a giant leap forward. A few strategically placed implants can provide the highest support and stability we can currently achieve for this well-known dental restoration.
Implants derive this stability from the bone in which they're imbedded. Once surgically installed, the bone around a metal implant begins to grow and adhere to its titanium surface. Over time, this creates a strong anchor that firmly holds the implant in place.
But the implants' stability can be threatened if the gums around them become diseased. Gum disease, a bacterial infection caused mainly by dental plaque, can advance silently below the gum surface until it ultimately infects the bone. This can cause significant bone loss around an implant, which can weaken it to the point of failure.
To avoid this scenario, it's important to prevent gum disease by flossing daily to remove accumulated dental plaque between the implant-supported bridge and the gums, particularly around the implants. This kind of flossing around bridgework is more difficult than flossing between teeth, but it can be done with the help of a device called a floss threader.
A floss threader is a small plastic hand tool with a loop on one end and a stiffened edge on the other (similar to a sewing needle). You begin by threading about 18" of dental floss through the loop, and then work the other end of the threader between the bridge and gums to the other side.
With the floss threaded between the bridge and gums, you can now remove it from the threader, grasp each end, and floss around the sides of each implant you can reach. You'll then need to repeat the process by removing the floss, rethreading it in the threader and inserting it into the next section between implants, continuing to floss until you've accessed each side of each implant.
You can also use pre-packaged floss thread sections with a stiffened end to facilitate threading. But whichever product you use, it's important to perform this task each day to prevent a gum infection that could rob you of your implant-supported bridge.
If you would like more information on oral hygiene practices with dental work, 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 “Oral Hygiene for Fixed Bridgework.”