DENTAL PROSTHESIS

DENTAL PROSTHESSIS CAN BE CLASSIFIED UNDER TWO MAIN CATEGORIES:

  • FIXED PROSTHESES and REMOVABLE PROSTHESES
  • FIXED PROSTHESES = CROWNS AND DENTAL BRIDGES

WHAT IS CROWN AND DENTAL BRIDGE?

A crown is a type of dental restoration which completely caps or encircles a tooth which has suffered extensive surface loss due to cavity, breakage or any other reason.

Bridge: It is the process in which one or more missing teeth space is filled by a prosthesis attached to the teeth neighboring the lost tooth or teeth.

When tooth loss occurs for any possible reason, the neighboring teeth start a movement towards the space created by the missing teeth. As a result of this movement the individual may experience teeth and gum problems, misalignment owing to the movement, chewing problems, aesthetical deteriorations and also bone decay. If the space is not filled by an implant or a dental bridge, neighboring teeth may also be lost

Dental Prosthesis

CROWNS AND BRIDGES ARE DIVIDED INTO TWO TYPES DEPENDING ON THE MATERIAL USED

METAL CONTAINING DENTAL RESTORATIONS

A variety of alloys are utilized for this type, though the most common ones are gold, platinum, palladium, silver, copper and tin. Among all the alloys and elements used in dentistry, gold is one of the most expensive materials compatible with teeth and gingiva

METAL FREE ZIRCONIUM BASED (FULL PORCELAIN) CROWNS AND BRIDGES.

They are made of strengthened porcelain. Although the appearance of crowns depends on many different factors, the most important one is the reaction they give when exposed to sunlight. Natural teeth are nonopaque therefore they create a certain amount of depth and vividness. Metal free porcelain crowns (full porcelain crowns), owing to their nonopaque features are superior to metal containing dental restorations in terms of the depth and vividness they present. Therefore the patient is provided with an alternative closest to their natural teeth.

WHAT ARE THE ADVANTAGES OF FULL PORCELAIN ZIRCONIUM CROWN AND BRIDGEWORK WITH NO METAL STRUCTURE?

  • While full porcelain is non-opaque and looks like natural teeth tissue, metal-based porcelain work is artificial and toneless in general, even if it is done with most care. Thus, especially in front teeth, full porcelain structure is preferred.
  • Metal-supported porcelains can look dark and dim under certain types of lights (such as photoflash and disco lights) as if there are no teeth in the person’s mouth. But full porcelains have the same transparency as the natural teeth.
  • Metal-supported porcelains are glued on the teeth mechanically. On the other hand, full porcelains are fixated on the teeth both chemically and mechanically. Thus, they are more stable than the metal-supported ones.
  • There will be no dark colored line between the crown and the gums since there are no metals in the structure. That will look aesthetically more pleasing.
  • When there is gingivitis, full porcelains keep their aesthetical qualities, but metal-porcelains constitute an unpleasant view on the spot where they meet the gums.
  • The allergy risk concerning some metals used (nickel etc.) is not present in the case of full porcelain use.

What is Zirconium?

For long years, dentists used to make use of a metal structure under the porcelain tooth to ensure better endurance. Since it was known to have drawbacks concerning the gums, tooth tissue, general health of the body and most importantly aesthetic appearance, a search for an alternative material to use as a substructure for the porcelain went on for years

The use of zirconium, which had been used in other areas of medicine with success, in dentistry as a substitute for porcelain metal opened the doors of a new era

Because porcelain coatings with zirconium substructure enables us to reach an aesthetical an functional level close to the natural teeth since they are non-opaque and they also don’t cause any gingival problems and allergies.

The crown and bridgework done by placing porcelain on top of zirconium are called with the short name CERCON (Ceramic and Zirconium). It has the outmost physical qualities and has a resistance of 900 Mpa. Also, it is non-opaque, tissue friendly, has other positive features regarding to several different indications; so, it has opened a brand new area in dentistry. The success of this material has been proven in medicine and in industry. According to the outcomes of the researches carried out from 1998 on, the worldwide clinical use of CERCOM started from 2002 on. Thanks to this new application, aesthetical concerns caused by metal-ceramic and full ceramic restorations are no more valid.

REMOVABLE DENTURES=TOTAL AND PARTIAL PROSTHESIS

Removable dentures are the most common method for completing the missing teeth. This technique is used when the reparation of the number of missing teeth is impossible by the use of fixed denture.

DIFFERENT OPTIONS CAN BE OFFERED ACCORDING TO THE PATIENT’S DENTAL STRUCTURE, POSITION AND CONDITION OF THE TEETH.

COMPLETE DENTURES= IF THE PATIENT HAS LOST ALL TEETH, THIS METHOD IS USED.