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Learn About Conventional Over-Denture

A conventional over-denture rests over some healthy natural tooth roots. This approach was first reported in 1861. To understand this method, it is necessary to review some facts.

An Overview of Alveolar Ridge Dynamics

• Maintaining a denture on the jawbone ridge (called alveolar ridge) is essential to prevent it from becoming loose during eating, speaking, and other activities.
• Preserving the alveolar ridge facilitates denture stability.
• The body tends to conserve energy and nutrients by maintaining only structures with apparent immediate value. A typical example is the bulk reduction of a broken leg held immobile by a full-leg cast for a month or more.
• The body recognizes that the only one purpose for alveolar bone is to hold tooth roots.
• Alveolar bone no longer supporting a tooth root is removed, or literally dissolved away, by the body. This is called resorption, or simply shrinkage.
• Resorption progresses at varying rates in the same person at different times, and at different rates between different people. Resorption progresses rapidly within the first year of losing a tooth, after which time, the rate progresses at a slower pace.

From this overview, if the maximum amount of alveolar ridge is to be maintained, then preserving the maximum number of periodontally healthy tooth roots should achieve that end.

Preserving the Sensation of Having Teeth

Studies demonstrate that even though only roots are preserved, and a denture covers them, a patient still has sensory input sensations similar to that experienced with teeth, as opposed to individuals with conventional dentures and no preserved roots. Over-denture patients also appear to have a more natural perceived directional sense in their chewing activities. In other words, many patients relate that they still feel like they have teeth -- a positive comment.

Underlying Philosophy of the Conventional Over-Denture

If a patient's treatment plan to have a denture, and the roots of some remaining teeth are supported in healthy alveolar bone, then a conventional over-denture is a viable consideration.

However, only a licensed dentist can determine if a conventional over-denture is a suitable consideration for a certain person, after a comprehensive examination.

Some Characteristics of a Conventional Over-Denture

• Most of a tooth crown (that part of the tooth above the gums) is removed. This often necessitates root canal therapy if not already done.
• The remaining tooth, projecting above the gum, is rounded and usually covered with a similarly shaped artificial crown-like covering.
• Various configurations and extensions may be built onto some retained roots. In those cases, that portion of the denture overlying these configurations is modified to contain attachments that clip onto a framework or receive the individual extensions. In addition to preserving alveolar bone and sensory input, the denture is held securely in place, but may be comfortably and easily removed for cleaning.

Advantages of a Conventional Over-Denture

• Feels more like having teeth
• More retentive in many cases
• Helps reduce shrinkage of surrounding bone
• Reduces pressure to portions of the alveolar ridge
• Positive psychological advantage of still having teeth

Disadvantages of a Conventional Over-Denture

• Scrupulous oral hygiene is essential in order to prevent decay and gum disease
• The over-denture may feel bulkier than a conventional denture
• Frequent maintenance examinations are necessary
• Generally, this is a more expensive approach than a conventional denture

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.

New Dentures: What to Expect from Complete Dentures

Complete dentures are less than perfect replacements for natural teeth. However, they have proven to be effective for countless individuals and can be comfortable to wear if a person has reasonable expectations and recognizes that there definitely will be an adaptation period.

It is important to understand that "showing off" with new complete dentures often ends in an unpleasant and embarrassing experience. One must first practice with their new prosthesis and learn what limitations and compensations need to be considered.

The old adage of "learn to walk before you run" certainly applies to the successful, secure and comfortable wearing of complete dentures.

Some Factors to Consider When Wearing New Complete Dentures

This is not an exhaustive review of new complete dentures learning considerations. However, these are common areas of concern. If a person has a unique question or problem, they should always contact their dentist or prosthodontist for advice and direction.

Full feeling:

When new complete dentures are first placed in the mouth, they frequently feel fuller, and it may not seem like there is enough room for the tongue. When a person has been without teeth for a period of time, the inside of the cheeks and tongue can become slightly thicker or feel fuller. When new complete dentures are first inserted, this slight fullness may feel enormous. It actually is not, and the full feeling will usually go away very shortly if an individual does not dwell on the sensation.

Previously unsupported sunken facial structures and muscles usually will be supported with new complete dentures to a normal position. These facial tissues adapt rapidly to their regained normal positioning and will feel less strained and more flexible. A more youthful appearance results in many cases.

Phonetic difficulty:

When a person is used to producing speech sounds without teeth or with old complete dentures that no longer preserves proper jaw relationships, they generally have adapted their speech in such a way as to accommodate these abnormal conditions. However, when correct jaw relationships and contours are established again with new complete dentures, there may be some difficulty producing certain speech sounds clearly, and teeth might even click together in some instances. This is temporary.

If an individual makes an effort to speak slowly and clearly, pronouncing words very precisely, the tongue and other muscles will adapt quickly to produce clear speech. It is often useful to read a book or newspaper out loud, carefully pronouncing each word precisely.

Sore spots and irritations:

These may develop as new complete dentures settle in. This may require some adjustment to the body of the complete dentures, and, more often, careful adjustment of the bite resolves these types of problems.

At times, the jaws may feel tired and soreness can develop. Taking complete dentures out to rest the mouth for a time frequently helps resolve these problems.

Chewing patterns:

Chewing patterns will need to be developed over several weeks, starting by chewing with small pieces of soft food and gradually increasing the firmness over several weeks. Generally, food should be chewed on both sides of the mouth at the same time.

Front teeth are considered primarily for esthetics and speech and to a lesser degree for function. Food is not bitten off with the front teeth efficiently; rather, the bolus of food should be held by the complete dentures, near the corners of the mouth, and torn off by rotating the hand holding food in a downward motion. This will increase chewing efficiency and reduce irregular denture rocking.

A complete dentures patient needs to take control and keep a positive attitude for optimal results.

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.