Posts for: November, 2020
Before implants, people often turned to a removable appliance to replace multiple missing teeth. Known as a removable partial denture (RPD), this appliance could restore both appearance and function at an affordable price.
But although implants may have diminished their use, RPDs haven't gone extinct. They're still a viable option for patients who can't afford implants or fixed bridgework, or who can't obtain implants due to the state of their dental health.
Although replacing only a few teeth rather than an entire arch, RPDs are similar in basic concept to full dentures. The prosthetic (artificial) teeth are anchored in a resin or plastic that's colored to resemble the gums, precisely placed to fit into the missing gaps. This assembly is further supported by a frame made of vitallium, a lightweight but strong metal alloy. The appliance fits upon the arch with the missing teeth, supported by vitallium clasps that grip adjacent natural teeth.
Each RPD must be custom designed for each patient to fit perfectly without excessive movement during chewing. Too much movement could warp the fit, reduce the RPD's durability or damage other teeth. To achieve this secure fit, dentists must take into account the number and location of missing teeth to be replaced, and then apply a specific construction pattern to balance the appliance.
There are RPDs that are meant to be used short-term, as with a teenager whose jaw isn't yet mature for dental implants. But the metal-framed RPDs we've described are designed for long-term use. There is, however, one primary downside: RPDs have a propensity to collect dental plaque, a thin biofilm most responsible for dental disease that could further deteriorate your dental health.
To avoid this, you'll need to keep both the RPD and the rest of your teeth and gums as clean as possible with daily brushing and flossing, and appliance care. And like dentures, it's best to remove the RPD when you go to bed at night to discourage the growth of harmful bacteria.
To see if an RPD to replace your missing teeth is an option for you, visit us for a complete dental exam. From there, we can advise you further as to whether an RPD could affordably restore your missing teeth and your smile.
If you would like more information on RPDs, 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 “Removable Partial Dentures.”
Modern dentistry offers several great ways to permanently replace missing teeth, including high-tech dental implants and traditional fixed bridgework. But sometimes, for one reason or another, it isn’t possible to have these treatments done right away. If you need an aesthetic way to temporarily replace missing teeth, a flexible partial denture could be the answer you’re looking for.
Certain kinds of removable partial dentures (RPDs) can be used as permanent tooth replacement systems, especially for people who aren’t candidates for dental implants or fixed bridges. But in the past, if you needed a temporary tooth replacement, one of the few alternatives was the type of rigid RPD often called a “flipper.” This consists of a firm, relatively thick acrylic base that supports one or more lifelike replacement teeth. It attaches to the “necks” of existing natural teeth via metal clasps, which gives it stability and strength.
However, the same rigidity and thickness that gives these rigid RPDs their durability can make them uncomfortable to wear, while the acrylic material they are made of is capable of staining or breaking. Over time, the RPDs are prone to coming loose — and they are also easy to flip in and out with the tongue, which gives them their nickname.
Flexible partial dentures, by contrast, are made of pliable polyamides (nylon-like plastics) that are thin, light and resistant to breakage. Instead of using metal wires to attach to the teeth, flexible RPDs are held securely in place by thin projections of their gum-colored bases, which fit tightly into the natural contours of the gumline. Their elasticity and light weight can make them more comfortable to wear. Plus, besides offering aesthetic replacements for missing teeth, their natural-looking bases can cover areas where gums have receded — making existing teeth look better as well.
All RPDs must be removed regularly for thorough cleaning — but it’s especially important for flexible RPD wearers to practice excellent oral hygiene. That’s because the projections that hold them in place can also trap food particles and bacteria, which can cause decay. And, like most dentures, RPDs should never be worn overnight. Yet with proper care, flexible RPDs offer an inexpensive and aesthetic way to temporarily replace missing teeth.
After years of research, we're confident in saying that brushing and flossing daily are essential for maintaining a healthy mouth. A mere five minutes a day performing these tasks will significantly lower your risk of dental disease.
We're also sure about the essentials you'll need to perform these tasks: a soft-bristled toothbrush using fluoride toothpaste, and a roll (or picks) of dental floss. The only deviation might be a water flosser appliance instead of flossing thread.
Unfortunately, some folks deviate even more from the norm for both of these tasks. One of the strangest is a social media trend substituting regular toothpaste with substances containing activated charcoal. The proponents of brushing with charcoal claim it will help whiten teeth and kill harmful microorganisms. People brushing with a black, tarry substance also seem to make for good “gross-out” videos.
There's no substantial evidence to support these claims. Perhaps proponents of charcoal's whitening ability are assuming it can remove stains based on its natural abrasiveness. It could, however, remove more than that: Used over time, charcoal could wear down the protective enamel coating on your teeth. If that happens, your teeth will be more yellow and at much greater risk for tooth decay.
When it comes to flossing (or more precisely, removing food material from between teeth), people can be highly inventive, substituting what might be at hand for dental floss. In a recent survey, a thousand adults were asked if they had ever used household items to clean between their teeth and what kind. Eighty percent said they had, using among other things twigs, nails (the finger or toe variety) and screwdrivers.
Such items aren't meant for dental use and can harm tooth surfaces and gum tissues. Those around you, especially at the dinner table, might also find their use off-putting. Instead, use items approved by the American Dental Association like floss, floss picks or toothpicks. Some of these items are small enough to carry with you for the occasional social “emergency.”
Brushing and flossing can absolutely make a difference keeping your teeth and gums healthy. But the real benefit comes when you perform these tasks correctly—and use the right products for the job.