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Relieve Irritation With Soft Denture Liners

A soft denture liner is placed in the part of a denture base that contacts tissues. This provides comfort for those persons experiencing considerable pain while wearing a denture that has a hard plastic interface (the inside of the denture).

These individuals may have a low threshold for pain, and/or the gum tissue that overlays jawbone is usually thinner than normal and does not resist pressure well. When such tissue is compressed between hard jawbone and hard denture plastic, pain is easily elicited. Replacing one of these hard interfaces with a soft denture liner helps eliminate or reduce this painful tissue compression.

Some Characteristics of Soft Denture Liners

Denture liners are usually fabricated from special medical grade rubber or silicone-type compounds. The silicone materials are generally more compressible and, consequently, softer.

In order for these materials to function adequately, they must be reasonably thick. Therefore, the amount of plastic that needs to be removed from the inside of a denture to allow room for these liners may weaken some dentures. In those cases, it becomes necessary to incorporate a reinforcing metal framework within the body of certain dentures. There are several steps involved in installing a soft denture liner, such as impressions and various laboratory procedures.

Soft denture liners tend to continually harden, though a patient may not be aware of this happening because the process is gradual. However, they eventually will begin to have increasing problems until a new soft denture liner is placed.

Denture liners are porous in nature, which accounts for why they are soft. However, this porosity contributes to their deterioration and collection of microorganisms.

If a soft denture liner becomes contaminated with disease-causing microorganisms (a fungus for example), it may not be possible to decontaminate the denture without having to replace the denture liner.

Persons with dry mouth usually have difficulty wearing dentures due to pain and irritation caused by the hard denture surface rubbing against underlying tissues that are not lubricated with adequate saliva. While soft denture liners would appear to be ideal for such individuals, they are generally much more difficult to maintain. Because impaired saliva production allows a very significant collection of microorganisms to buildup in the mouth, this usually results in unacceptable contamination of porous soft denture liners unless meticulous oral hygiene is maintained.

While denture liners generally will last longer than a year, they should be replaced on an annual basis or sooner. The frequency of replacement depends on each situation and the patient's oral hygiene.

Advantages of Soft Denture Liners

• A gentle and kinder denture interface for those individuals with sensitive underlying tissues.
• The soft denture liner tends to compress and conform to a constantly changing jawbone surface. While this helps prevent pain from a moderately unbalanced bite resulting from jawbone shrinkage, it is not a long-term substitute for regular adjustments to balance a denture bite.

Disadvantages of Soft Denture Liners

• Soft denture liners continually deteriorate and collect microorganisms easily; therefore, they generally are replaced on an annual basis.
• Because soft denture liners help reduce pain from an uneven bite, patients may get a false sense of security, thinking their denture is adequately functioning while the bite continues to deteriorate. Routine dental check-ups are a necessity.
• Generally, soft tissue liners are more expensive than a conventional hard denture liner.

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.

Periodontal Disease And Older Adults

The proverbial way of referring to older people as being "long on the tooth" suggests that it is predetermined that as we get older our teeth get "longer" or "no longer." This is not true. Periodontal disease and loss of teeth is not an inevitable aspect of aging. Loss of attachment or bone support around a tooth is the result of a bacterial infection. What is true is that as we get older, we have more exposures to these infectious organisms, and more probability of being infected and developing periodontal disease. Half of the people over 55 have periodontal disease.

Risk factors that make older adults more susceptible to periodontal disease include:

Systemic diseases:

Certain systemic diseases such as diabetes may decrease the body's ability to fight infection and can result in more severe periodontal disease. Osteoporosis also can increase the amount and rate of bone loss around teeth. Systemic illnesses will affect periodontal disease if it is a pre-existing condition. To reduce the effects of systemic diseases on the oral cavity, maintain meticulous plaque control and visit your dental care provider routinely for examinations and professional cleanings.

Medications:

Heart medications can have a direct effect on the gums by creating an exaggerated response to plaque and resulting in gum overgrowth. Antidepressants may create dry mouth and reduce the saliva's ability to neutralize plaque. Immunosuppressants and other disease-fighting medications may reduce the body's ability to combat infection, increasing the risk for periodontal disease. The dental care provider needs to be aware of any medications you may be taking and you need to maintain meticulous plaque control and visit your dental care provider routinely for examinations and professional cleanings.

Dry mouth:

Lack of saliva can result from the use of certain medications or as a result of illness. If there is not enough saliva available to neutralize plaque it can result in more cavities and periodontal disease. Also, dry mouth, or xerostomia, can make dentures more difficult to wear and may also complicate eating, speaking, or swallowing of food. Oral rinses or artificial saliva can be very helpful with these problems. Frequent sips of water or eating candy may be helpful as long as it doesn't contain sugar. Fluoride rinses and gels are helpful in reducing or preventing the cavities that can be caused by having a dry mouth.

Dexterity problems:

Physical disabilities can reduce dexterity and the ability to remove plaque on a daily basis. Poor oral hygiene can increase the risk for cavities and periodontal disease. Electric toothbrushes and floss holders are helpful in improving plaque control. Frequent professional cleanings combined with oral anti-microbial or fluoride rinses also may be helpful in reducing the incidence of cavities and periodontal disease.

Estrogen deficiency:

Older women may have some special concerns in relation to periodontal disease. Scientific studies have suggested that the estrogen deficiency that occurs after menopause may increase the risk for severe periodontal disease and tooth loss. Estrogen replacement therapy may reverse these effects.

It is important to keep teeth as we age because every tooth has an important function in chewing and speaking. They affect our appearance and self esteem. Having dentures or loose or missing teeth can restrict our diets, resulting in poor nutrition and systemic complications. With the advances in modern dentistry and with current prevention and treatment techniques, we must count on keeping our teeth for a lifetime - no matter how "long" that may be!

+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.