Crown and Bridges

crowns and bridges are fixed prosthesis (i.e it can be cemented onto existing teeth or implants, and can only be removed by a dentist).

CROWNS

crowns  A crown is a tooth-shaped cap that is placed over a damaged tooth (like a helmet on the head). Some times tooth becomes so severely damaged due to decay, cracked teeth or trauma that the area is too large to restore with a traditional filling .When your teeth is severely damaged or root canal treated,nutrition and strength of the teeth is compromised .therefore crowns are necessary as it fully encases the entire visible portion of a tooth that lies at and above the gum line

The goal is to bring back your natural smile and prevent further damage.

 

 

 

 

 

BRIDGES

bridgesBridges are commonly used to replace one or more missing teeth.

They are nothing but two or more crowns joined together to replace missing tooth.missing tooth is replaced by a crown by taking support of adjacent teeth crowns

Many varieties of crowns are now available.they include:
1. Metal crowns
2. PFM(porcelain fused metal)crowns
3. Metal free crowns

 

METAL CROWNS

These are old fashioned crowns made of nickel-chromium or chromium-cobalt alloys. they are metal colored,so their use in front teeth is restricted. The color shows off each time you open your mouth.

Advantage

Cheap,good strength

Disadvantage

May cause allergic reaction,highly unaesthetic.

CERAMIC CROWNS(PFM)

ceramic crowns are superior to metal crowns as it can be used in anterior as well as posterior teeth.it has limitations when used in front teeth as it might show off metal (metal reflection). The crown’s porcelain portion can also chip or break off. However, sometimes the metal underlying the crown’s porcelain can show through as a dark line, especially at the gum line and even more so if your gums recede.

Advantage

Good strength, esthetic, cost effective

Disadvantage

May cause allergies,color matching difficulties..

ZIRCONIA CROWNS(METAL-FREE CROWNS)

Zirconia crowns are the best quality crowns available which comes with warranty.These crowns are much better when compared to ceramic and metal in strength and esthetics. These crowns can be used both in anterior and posterior teeth(front and back tooth) as it does not contain any metal in them.thus perfect color matching can be done. The main advantage of this variety of crown is it does not cause any allergic reactions or gingival irritation.

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