Dental prosthesis


Dental prosthesis is the part of dentistry that essentially deals with replacing missing teeth.
The dental prosthesis makes it possible either to reconstruct decayed teeth by caries or fractures using a dental crown , or to replace missing teeth thanks to a fixed fixture called ” bridge ” or removable called ” metal frames ” or ” stellites ” .

  • Tooth crown

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A dental crown is a hat-like prosthesis that has the shape of a real tooth. A crown is placed over a tooth damaged by a decay or fracture, to cover and protect it by restoring its shape, aesthetics, size and strength.
A dental crown reconstitutes, therefore, artificially the crown of the decayed tooth. It can be simple, or associated with an inlay-core (false stump anchored in the root of the tooth by a tenon, which will serve as an anchor to the crown).
It is made entirely of metal alloys (metal crown) or is covered with a cosmetic material (ceramic crown) or made entirely of porcelain (all-ceramic crown).

 

  • Dental Bridge (bridge in English)

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When it is not possible to keep a tooth too dilapidated, it must be extracted.
For its replacement in order to preserve a good dental balance and a good chewing efficiency, it is necessary to resort to the bridge technique which consists of taking support on the two adjacent teeth bordering the edentation. Dental implants can be an alternative
A bridge makes it possible to replace an absent tooth, or even two, by leaning on the adjacent teeth (one on each side); beyond the risk of fracture is too high.
But it is also possible to make a bridge of greater reach, by leaning on several pillar teeth. The principle is the same as for the crown.
The materials used are the same as for the crown: ceramic for the anterior teeth with the possibility of using metal for the posterior teeth.

Advantages:
The advantages of the dental bridge are:

  • The bridge is aesthetic: it harmonizes with natural teeth.
  • On the practical side, the dental bridge is part of the fixed prostheses. Cleaning is therefore easier than a removable device.

Disadvantages:
The dental bridge has drawbacks that must be taken into account:

  • The dental bridge is expensive: for an absent tooth, three crowns are necessary.
  • The bridge causes mutilation of the abutment teeth: to replace a single tooth, the dentist must “sacrifice” the two adjacent teeth that are sometimes in very good condition.
  • Finally, it causes a retraction of the gum: the replaced tooth (the bridge) has no root, the bones of the gums tend to retract.

Removable denture

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Well known by the name of denture, it is a dental prosthesis which is removed as its name indicates it and which can replace several teeth.
A rigid metal frame is used which rests on the mucous membranes and the remaining teeth and on which the resin teeth are fixed when it is necessary to make up for the absence of some teeth.
They can replace both missing teeth and gums.
Feared by patients for its removability and its size, it has the advantage of being economical and quick to achieve.

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