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Posts for tag: dentures

ChangesinBoneStructurecanAffectDentureFit

It’s a common problem for denture wearers: after years of a comfortable fit, your dentures now seem to be uncomfortably loose. The reason, though, may have more to do with bone loss than the dentures.

Bone is a living tissue with a life cycle — it forms, it ages, and it eventually dies and dissolves (resorbs). It’s replaced with new bone and the cycle repeats. Additionally, the forces generated when we bite or chew are transmitted from the teeth to the jaw, which helps stimulate new bone growth. When the natural teeth are missing, however, the bone no longer receives this stimulus. Resorbed bone isn’t replaced at a healthy rate, which leads over time to bone loss.

Denture construction can also contribute to bone loss. The denture palate rests for support on the bony ridges that once held the teeth. Over time the compressive forces of the dentures apply damages and reduces the volume of gum tissue and eventually does the same to the bone. Combining all these factors, the reduced gum and bone volume will eventually alter the denture fit.

There are a few alternatives for correcting loose dentures. One is to reline them with new plastic, as either a temporary fix performed during an office visit or a more permanent relining that requires sending your dentures to a dental lab. Depending on the rate of bone loss, a patient could go through several denture relinings to accommodate ongoing changes in the jaw. At some point, though, it may be necessary to create a new set of dentures.

A third alternative that’s becoming increasingly useful is to incorporate dental implants into the denture design. Implants can of course be used to replace individual teeth, but a few strategically placed implants (usually of smaller dimension) can serve as a support platform for a removable denture. This relieves some of the compression force of a traditionally worn denture and can slow bone loss.

If you’re having problems with your denture fit, call us for an appointment. We’ll help you decide on the best alternative to improving the fit and making your dentures more comfortable and secure.

If you would like more information on refitting loose dentures, please contact us today to schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Loose Dentures.”

DenturesareStillaViableChoiceforToothReplacement

Edentulism, the loss of all of a person’s teeth, is more than an appearance problem. As one in four Americans over 65 can attest, total tooth loss can lead to emotional suffering, social embarrassment and a lack of nutrition caused by limited food choices.

But there are solutions like the removable denture, an effective dental restoration for more than a century. In its current advanced form, the removable denture is truly a functional, affordable and attractive way to restore lost teeth.

Creating an effective denture begins first by taking detailed impressions of a patient’s gum ridges. We use the measurements obtained from this process to create a plastic resin base colored to resemble the natural gums.  Using old photos and other resources documenting how the patient looked with teeth, we choose the best size and shape of porcelain teeth and then position them onto the base.

Finally, we fine-tune the dentures the first time they’re in the patient’s mouth to make sure they have a secure fit and a balanced bite when the jaws come together. We also want to be sure the dentures are attractive and blend well with other facial features. The result:  a new set of teeth that can do the job of the old ones and look nearly as real and attractive.

Dentures, though, do have one major drawback: they can’t stop bone loss, a common consequence of missing teeth. In fact, they may even accelerate bone loss due to the pressure they bring to bear on the gum ridges. Continuing bone loss could eventually cause their once secure fit to slacken, making them less functional and much more uncomfortable to wear.

But a recent innovation could put the brakes on bone loss for a denture wearer. By incorporating small implants imbedded at various places along the gums, a denture with compatible fittings connects securely with the implants to support the denture rather than the gum ridges. This not only relieves pressure on the gums, but the titanium within the implants attracts bone cells and stimulates their growth.

Thanks to this and other modern advances, dentures continue to be a solid choice for tooth replacement. Not only can they restore a lost smile, they can improve overall health and well-being too.

If you would like more information on dental restorations for missing 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 “Removable Full Dentures.”

Implant-SupportedDenturesCouldContributetoBetterBoneHealth

For generations, dentures have helped people avoid the dire consequences of total teeth loss. Now, implant technology is making them even better.

Composed of life-like prosthetic teeth fixed within a plastic or resin gum-colored base, dentures are manufactured to fit an individual patient’s mouth for maximum fit, comfort and performance. But dentures also have a critical drawback—they can’t stop bone loss in the jaw.

Bone is constantly regenerating as older cells dissolve and then are replaced by newer cells. In the jawbone, the forces generated when we chew travel through the teeth to the bone and help stimulate this new cell growth. When teeth are missing, though, the bone doesn’t receive this stimulus and may not regenerate at a healthy rate, resulting in gradual bone loss.

Dentures can’t transmit this chewing stimulus to the bone. In fact, the pressure they produce as they rest on top of the gums may actually accelerate bone loss. Over time then, a denture’s once secure and comfortable fit becomes loose.

In the past, most patients with loose dentures have had them relined with new dental material to improve fit, or have new dentures created to conform to the changed contours of the jaws. But implant technology now offers another alternative.

Implants are in essence a tooth root replacement. Dentists surgically implant a titanium metal post directly into the jawbone that naturally attracts bone cells to grow and adhere to it over time (a process called osseointegration). This not only creates a secure and lasting hold, it can also stop or even reverse bone loss.

Most people know implants as single tooth replacements with a porcelain crown attached to the titanium post. But a few strategically placed implants can also support either removable or fixed dentures. Removable dentures (also called overdentures) usually need only 3 or 4 implants on the top jaw and 2 on the bottom jaw for support through built-in connectors in the dentures that attach to the implants. A fixed bridge may require 4-6 implants to which they are permanently attached.

There are pros and cons for each of these options and they’re both more expensive than traditional dentures. In the long run, though, implant-supported dentures could be more beneficial for your bone health and hold their fit longer.

If you would like more information on implant-supported dental work, please contact us or schedule an appointment for a consultation.

DenturesStillanEffectiveRestorationforTotalToothLoss

After a long struggle with dental disease, you have finally lost the last of your remaining teeth.  Like over a quarter of Americans in their 60s and 70s, this unfortunate development can have a profound impact on your health and self-image.

While there are a number of advanced methods for replacing lost teeth, there's one tried and true option that's centuries old — the removable denture. It's the option millions of people have chosen to lessen the impact of missing teeth.

Fashioned properly, removable dentures restore the form and function you once had with your natural teeth. The prosthetic (false) teeth are precisely placed in an acrylic, gum-colored base that closely follows the contours of your gums. Because they're removable, they're fairly easy to clean and maintain.

They do have a disadvantage, though, and it's related to bone health after tooth loss. Like other living tissues, bone has a life cycle: as older cells die, new cells form to take their place. The forces your teeth generate when you chew stimulate new bone growth. But without teeth to provide this stimulation, new bone won't keep up the pace of replacement at a healthy rate. As a result you may gradually lose bone, as much as a quarter of its normal width within a year of losing a tooth.

Dentures don't transmit any stimulation to the gum and bone from chewing. Furthermore, the compressive forces transmitted to the gum and underlying bone tissue contributes to bone loss. As the bone continues to diminish, your denture fit becomes looser to the point you will eventually need them relined with new acrylic material or have a new set made.

There is another alternative when patients loose all of their teeth: an implant-supported removable denture. Dental implants can be used to keep the dentures more secure and can also slow or even halt bone loss where the implants are placed. In this case we strategically place a few implants to serve as supports for a removable denture. The denture has connection points that join up with the implants to hold it more securely in place. As few as two implants are needed in the lower jaw, while the upper jaw does better with three or four implants.

Losing all your teeth can be traumatic, but there are effective ways to overcome it. With new technology, the traditional restoration of removable dentures may be the vehicle for achieving that.

If you would like more information on restoring missing teeth with dentures, 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 Full Dentures.”