05 August 2012
Porcelain inlay and onlay | Cosmetic Dentistry, OPERATIVE DENTISTRY
Porcelain inlay is an indirect restoration consists of porcelain substance fitted to cavity in a tooth and cemented into place.
Porcelain onlay is same as inlay, except that it extends to replace a cusp. Porcelain crowns are onlays which completely cover all surfaces of a tooth. Porcelain inlay or onlay is bigger than a filling and smaller than a crown. It is bonded or cemented into place.
An inlay is similar to a filling but it lies within the cusps on the chewing surface of tooth.
An onlay is larger than an inlay. It covers one or more cusps.
INDICATION:
-To restore mild to moderate damaged or decayed tooth.
-Teeth fractured or cracked.
IMAGES:
Advantage:
- Eliminate tooth sensitivity
- Increase the strength of tooth
- Better aesthetic appearance as compared to amalgam filling
- Well sealed tooth
- Long lasting
- Strong once bonded to the tooth
Disadvantage:
-More expensive than amalgum
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