Overdentures - in Your Local Area

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.

What To Expect From Immediate Dentures

Immediate dentures are placed in the mouth directly after the remaining teeth are extracted. This approach is utilized when a person does not want to be without any teeth for several months while extraction tooth sockets heal and a denture is fabricated.

Immediate Dentures Involve a Two-Step Denture Process

Optimally, immediate dentures are the first denture of a two-denture process and should be considered as a temporary interim prosthesis until a second refined and esthetically enhanced denture may be constructed after healing.

First Stage

• Usually, most or all of the back teeth are removed and extraction sites are allowed to heal for a minimum of six weeks or more, depending upon an individual's healing rate.
• After adequate healing, the immediate dentures unit is fabricated.
• The remaining teeth are extracted and the immediate dentures are placed in the mouth. Wearing immediate dentures right away over extractions normally is no more uncomfortable than the extractions alone.
• Discomfort is managed with proper anesthesia and pain medication. Immediate dentures act like a Band Aid bandage, holding tissues together and protecting them during healing.
• Generally, the dentist does not remove immediate dentures until the day after surgery. Surgery is checked and denture adjustments are made as necessary.
• Immediate dentures will gradually become loose because of bone shrinkage as the jaw continues to heal. Provisional liners are placed in the loosening denture to help hold it in place during healing.
• Adhesives also maintain the denture in place as it becomes looser. If immediate dentures become too loose during this healing period of several months, it may be necessary to reline multiple times.

Second Stage

• After adequate healing has occurred, a second refined denture is fabricated. This denture allows the dentist to artistically position teeth in an optimal and enhanced esthetic relationship, which was not possible with immediate dentures. It also is now possible to establish better functional relationships of the jaws.
• Approximately six months after the second denture is delivered, it will most likely need to be relined to compensate for continuing jaw shrinkage. After this reline, a patient usually needs annual relines to accommodate a continually shrinking jaw.
• The frequency of relines is an individual matter unique to each patient and is best determined by a licensed dentist after a thorough periodic examination that should occur at six-month intervals.

Modified Approaches to Immediate Dentures

• It is possible to extract all the back and front teeth at one time and insert immediate dentures. However, such an approach is problematic and generally is discouraged unless the patient has no other alternatives.
• All teeth may be extracted with no interim denture while the jaws heal and a denture is fabricated. This is generally a more economical approach, but an individual would be without teeth for several months.

Advantages of Immediate Dentures

• A person is not without teeth for any extended period of time.
• Immediate dentures act as a bandage while bony tooth sockets are healing after tooth extractions.

Disadvantages of Immediate Dentures

• A second refined and esthetically enhanced denture is necessary soon after the immediate dentures.
• While the cost of immediate dentures is generally about the same as a conventional denture, the second denture needs to be fabricated soon after the immediate denture. Therefore, a person would be experiencing the additional cost of the second denture sooner.

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.