Prosthodontics - in Your Local Area

Is It Time for New Dentures?

Dentures that fit well can improve your looks and enhance eating and speaking. Talk to your prosthodontist about your current situation and whether you need new dentures. In general, the life expectancy of false teeth is about five to seven years.

Factors that affect the satisfaction and life span of your prosthodontics include:

• General health status
• Significant weight increase or decrease
• Time since loss of teeth
• Denture care and cleaning
• Tobacco and caffeine use
• Shape of your mouth
• Changes in facial and oral muscles
• Variation in skin tone or color

The color match of false teeth to a natural tooth color can seem to change, especially if the natural teeth are darker due to stains or lighter because of past dental treatment. Also, dentures can wear, stain, chip, or fracture over time. Today's denturists are able to modify the look of smiles and gum tissues in order to compliment existing teeth, skin color, or tone.

Dentures, like all manufactured goods, require regular maintenance and eventual replacement. To maintain proper fit, appearance, function, and to avoid any damage to oral structure, a prosthodontist should regularly evaluate your false teeth. The gum and bone tissues that support dentures undergo changes over time and with age. Often, these changes include a good amount of bone shrinkage. Bone shrinkage causes a denture to become loose, less functional, and slip during eating and speaking. Age-related changes in facial muscles, complexion, and lips also will affect the function and appearance of your prosthodontics. Oral hygiene habits, use of tobacco, and drinking coffee or tea will also affect the appearance of a denture, as well as any odors associated with them.

Since dentures are in use every day, for many years, it is reasonable to periodically replace those that no longer fit properly. If you have not visited a denturist recently, if your false teeth slip, have lost their good looks, cause discomfort, or if they are more than five years old, you may need to replace them.

by Denise J. Fedele, D.M.D., M.S.

+Jim Du Molin is a leading Internet search expert helping individuals and families connect with the right dentist in their area. Visit his author page.

Why Have Regular Comprehensive Denture Check-Ups?

Regular and comprehensive examinations by a dentist are critical to ensure not only the proper function of a denture, but also the maintenance of total oral health.

Two significant things happen to a denture over time:

• It loosens -- Jaw ridges (alveolar ridges) will shrink in size and become smaller due to gradual and continuing bone loss (bone resorption) that occurs in everyone to varying degrees. This results in dentures becoming increasingly loose because they were fabricated originally to fit larger alveolar ridges.
• It wears -- Denture teeth will wear from use. In addition, uneven and irregular tooth wear develops as a denture becomes loose and starts shifting.

Denture loosening combined with uneven tooth wear results in a reciprocal and cyclical reinforcing synergism between the two destructive processes.

As a denture increasingly shifts on its soft tissue and jawbone foundation, it rubs and chafes the alveolar ridge. This causes irritation, soreness, and various types of pathology, including accelerated bone loss. In turn, this will cause more uneven tooth wear, which will cause more accelerated bone loss, and so on, back and forth. This is a gradual and unrelenting process that worsens over time, frequently at the expense of excessive jawbone loss, the thinning of overlying gum tissue, and the need to prematurely replace a denture -- unless detected and corrected in a timely manner.

If these problems are detected early, as during a regular check-up, they often may be remediated by adding plastic (acrylic resin) to the inside of a denture in order to allow it to fit closely against the alveolar ridge again (called relining or rebasing). In addition, irregularly worn teeth may be adjusted, or sometimes replaced or built up. Eventually, a denture will need to be replaced, but generally this will not need to be done too soon if a person visits their licensed dentist for periodic examinations.

Some Other Check-Up Considerations

• The need to adjust a denture, as determined by regular check-ups, helps keep a proper relationship between the jaws and thus maintains esthetics. Keeping jaws in a proper functional relationship, and sometimes building out certain denture surfaces, will support the face and help prevent a premature aging appearance.
• The temporomandibular joints or TMJs (the jaw joints located in front of each ear) undergo constant change in shape throughout life by a process called bone remodeling. This process is a functional response. If improper jaw function occurs, as a result of unadjusted dentures and improper bite, it is possible for the TMJs to remodel into a pathologic relationship. This could result in numerous pathological conditions, including impaired jaw function, headache, and other head and neck pains.
• Sometimes, more importantly than finding denture problems, is the opportunity to detect serious oral pathology, such as cancer, that may be discovered in early stages rather than later when radical and sometimes devastating therapy is necessary. The maintenance of healthy oral tissues is essential for optimum comfort in long-term denture wearers.

by Joseph J. Massad, D.D.S.

+Jim Du Molin is a leading Internet search expert helping individuals and families connect with the right dentist in their area. Visit his author page.