Depending on the case, removable or fixed prosthetic rehabilitations may be offered; Both seek the replacement of missing teeth with custom-made devices in order to repair the loss or diminution of masticatory and phonatory functions, and limit the aesthetic defect. The difference is that the removable prosthesis, as its name suggests, are susceptible to being removed from the mouth by the patient, while the fixed are permanently fixed in the mouth, so the patient cannot remove it by their own means. Fixed prostheses can be attached to remaining teeth (conventional fixed prosthesis), or attached to implants (implant-supported prosthesis).
Types of Prostheses</ u>:
- Over natural teeth
Rehabilitation treatments using prostheses:
The treatment by removable partial denture is the clinical procedure aimed at restoring missing teeth through medical devices that can be removed from the mouth without the intervention of the dentist, at the will of the patient.
These removable prostheses consist of artificial teeth attached to an acrylic and / or metal base, which rests on the gum and is subject to remaining teeth (if any) by means of retainers (colloquially called "hooks"), or to implants (implant-retained overdentures) by means of fastening mechanisms anchored to these and specific clamps, females of the mentioned mechanisms, located inside the prosthesis.
The prosthesis can replace all the teeth of a maxilla (full denture) or only part of them (partial prosthesis).
The full denture are made of acrylic (in the exceptional case of allergy, they can be made of titanium) and are attached to the gum by a «suction» effect, very limited in the case of the inferior ones; In fact, it is so limited that it is considered inevitable that lower full dentures move with the movements of the lips and tongue, that is, when talking and chewing.
The partial dentures, so-called to replace a part of the teeth and not the whole, can be:
- Metallic (usually chrome-cobalt, although in cases of allergy can be made in gold or titanium), colloquially known as skeletal.
Fixed prosthesis treatment is a clinical procedure aimed at restoring missing teeth by fixed appliances, permanently attached to some natural teeth remaining in the mouth or to osseointegrated implants. Unlike the removable prosthesis, this device cannot be removed by the patient by its own means.
- Fixed dental-supported prosthesis or conventional, in which it is necessary to wear (carve) the teeth that serve as a subjection, removing a thin layer of thickness.
- Fixed implant-supported prosthesis (that is, anchored to implants), in which the prosthetic structure can be screwed or cemented on pillars that are, in turn, screwed to the implants.