What is what in dentistry


Crown

Simply put, this is a kind of cap applied to properly prepared tooth, which is supposed to regenerate it. In shape and color it is well-matched to neighboring teeth, and after all it is practically invisible tooth replacement.

Crowns are made of different materials and thus also differ amongst themselves. It can be crown on metal, where a cap is made of steel, which covers the porcelain layer. This effect is quite good. Unfortunately, sometimes on joining the crown and gum, a bit metal can be visible, besides the porcelain layer is quite thin and not imitates the tooth perfectly.

Full-ceramic crowns don’t have such defects, in which the entire crown is made of ceramics, so there is much greater possibility of aesthetic fitting. Therefore for reconstruction of the anterior teeth these crowns are the best. Unfortunately, it is necessary to remember that such a crown has limited strength, and it shouldn’t be applied in posterior tooth, because it may crack.

And here comes another option, i.e. crowns on zirconium. It is unusually durable and aesthetically material, since it’s “white”. Such a crown is also made of cap, but this time of zirconium and porcelain-fused. Such crowns are aesthetic and strong; they are a great choice for reconstruction of posterior teeth while maintaining super-aesthetic (which crowns on metal don’t provide). It is said that zirconium is a material of the future in dentistry and all fillings made with this material are supposed to be non-exchangeable.

We must also remember about crowns on gold, which substructure is made of this precious alloy. These crowns have very low risk of tooth decay under them, because gold is bacteriostatic, thus repels bacteria. However, it is necessary to remember that there is also defect as in crowns on metal, i.e. they aren’t perfectly aesthetic.

When we perform the crown?

  • If the filling would be too big and little of own tooth would be left
  • If we want to protect the weak tooth against fracture
  • If we want to rebuild already broken tooth
  • In order to cover the implant
  • In order to reconstruct pigmented or distorted tooth
  • In order to cover the tooth after root canal treatment, when ordinary filling no longer is enough

 

 


Bridge

Bridge it is an interlocking layout of crowns, connected with each other. Thanks to it we can reconstruct the lack single or few teeth between the healthy ones. It is a layout where e.g. we have a crown on own tooth, next crown which reconstructs missing tooth and again the crown on own tooth, all it connected into cohesive whole. The bridge is fastened on own teeth or implants. As in case of crowns, the patient has a choice of material, from which the bridge is made and here he has the same options as in case of crowns, with exception that unfortunately full-ceramic bridges aren’t made.



Veneer

It is a thin porcelain shell, which reconstructs the external tooth surfaces to which it is glued. This is the most economical form of prosthetic work that allows for the best aesthetic effects. It is often compared to plasters stuck to nails. We apply the veneer in order to improve the aesthetics of tooth on which it is applied. We must remember that veneer can be applied only on healthy tooth without bigger fillings, and if we already have some bigger “fillings”, then in such a case the crown is used.

We perform the veneer, when:

  • zteeth are pigmented and resistant to whitening
  • we have fillings in the anterior teeth, which are constantly “chipped” by the forces of biting
  • we have cavities in edges of teeth, not to rebuild by other methods
  • there are diastemas (spaces) between teeth, which we want to liquidate
  • we want to change the shape of teeth, gently to eliminate its rotation
  • we want definitely to change the color of teeth

 


Onlay

This is a type of filling in the tooth, which is applicable in cases of great cavities, in situations when using ordinary filling can be risky. It is most often made of porcelain based on imprints, such a filling is far more long-lasting than normal filling.

 


Cofferdam

It is a thin piece of rubber sheet, which shall be used to isolate the tooth or few teeth from the oral cavity.

 


Tooth sealing

This is practically non-invasive form of tooth decay prevention in completely healthy teeth. It consists on applying of special material called sealant in places where the tooth decay most often appears, i.e. any hollows on the tooth called furrows. It is a liquid material, so exactly fills all cracks. Let us remember that we can perform sealing only on teeth without any fillings.


Extraction

This is the dental surgeon determination for tooth removal. Shall be carried out only when there is no other treatment option.