Porcelain Fused to Metal restoration – crowns and bridges
What is a Porcelain Fused to Metal - PFM?
Restorative dentistry offers a variety of dental treatments that can restore function to teeth that are damaged, decayed, or even missing. In addition to different restoration methods, there are also a variety of dental materials that can be used to fabricate dental restorations.
One such material is known as porcelain fused to metal or simply PFM restorations. PFM restorations are fabricated with a metal interior and a porcelain exterior
When Using a Porcelain Fused to Metal is Beneficial?
There are times when porcelain fused to metal bridges are a better choice than an all porcelain bridge.
Some of those circumstances include:
When the patient clenches or grinds their teeth
The patient has strong jaws or the bridge is in the back of the mouth
The abutment teeth are mobile.
When a long bridge are required ( more than one missing teeth)
PFM BRIDGE BEFORE & AFTER
Porcelain Fused to Metal Bridge Before
Porcelain Fused to Metal Bridge After
Porcelain Fused to Metal Cantiliver Bridge Before
Porcelain Fused to Metal Cantiliver Bridge After
Porcelain Fused to Metal Disadvantages
Dark Line: Although PFM crowns/bridges have a porcelain exterior, they still contain metal. This metal is visible at the bottom of the crown/bridge. Normally the gums cover it, but a dark line can show if the gums recede
Possible allergies: People who have metal allergies or are sensitive to metal may have an allergic reaction to PFM
Removes more natural tooth structure: In order to place a PFM crown, more of the natural tooth structure must be removed to accommodate this type of crown
The procedure
Porcelain-fused-to-metal dental crowns have a metal base which is bonded to a veneer made from porcelain. The metal provides a strong yet malleable density and the porcelain gives the crown a natural tooth-like appearance. It used for both front and back teeth restorations. This type of crown generally uses a partial veneer which only covers the visible aspect of the tooth. It’s then possible to colour match the veneer to the natural colour of the patients’ teeth.
For the base, a number of metals can be used ranging from the more affordable non-precious metals. These metals can form the strongest alloy and is a highly cost effective solution, however, they can cause some irritation to those with sensitives. Our value range of PFM crowns represents our most cost effective tooth coloured restoration.
A porcelain-fused-to-metal dental crown (PFMs) and porcelain-fused-to-metal bridge can be fully customisable in a number of ways. We offer survey crowns, stress-broken bridges, cantilever bridges, customisable attachments as well as varying metal and margin designs.
What should I expect when being fitted for a PFM restoration?
You’re tooth will be prepared for your new [city] PFM restoration as your dentist gently removes the outer layer for bonding. An impression of your teeth will be made and sent to a dental lab for fabrication of a PFM restoration in a shade that matches your natural teeth. Finally, the restoration will be sent back for placement and permanent bonding.
Will I need to follow any special post-treatment care guidelines after being fit for a PFM restoration?
It is normal to experience some sensitivity to hot and cold temperatures after having a PFM restoration placed. However, this should subside, as should any soreness caused by tooth preparation. Be sure to follow the instructions provided to you by your dentist, and continue brushing and flossing on a daily basis to keep your PFM restoration clean and well cared for.
