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.
Find A Dentist To Help You With Denture Repair
A frequent cause of a broken, chipped, or cracked denture is the impact of dropping it on the bathroom tile or into a sink. Sometimes damage to dentures happens when they are left in a place where children or pets are able to get at them let a dentist help you with that denture repair.
Dentures should be handled and stored carefully once out of the mouth to avoid chipping, breaking or damaging the pink denture base or the denture teeth.
If your denture is broken or damaged, visit a dentist to make sure that the denture repair provides the best denture fit, function, appearance and oral health.
Do-it-yourself denture repair can cause more damage than good to your denture and result in your needing a new denture. Do-it-yourself denture repair also can be very destructive to the gum tissues and bone ridges and cause irritation and sores.
A dentist has the training and qualifications, as well as the right instruments, supplies, and tools best suited to properly perform a denture repair.
If your denture is broken, keep any broken pieces of the denture. To prevent distortion of the denture, store the pieces in room temperature water until your dental appointment. The dentist will examine you and the denture and determine how to best restore the denture to its original condition.
Some denture repair, such as replacing a denture tooth, can be accomplished quickly, often in-office on the same day. More complicated breaks, such as a fracture of an edge that rests on the soft tissue inside the lips or cheeks, may involve obtaining impressions of your mouth and having the denture sent to a dental laboratory for the denture repair.
The ability to properly repair a denture depends upon the extent of denture damage, the past home care of the denture, the age of the denture and the fit of the denture at the time it was broken.
To maintain the best possible oral health and to avoid causing more damage to your denture, see a dentist for evaluation and denture repair. Often, home denture repairs require more extensive and costly reconstruction later.
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.