Inlays & Onlays:

Inlays and onlays are very similar to crowns in that the tooth is prepared and a dental laboratory creates a restoration which the dentist "cements" into place.  The differences between an inlay and onlay is only what part of the tooth is being restored. 

Restorations of this type are generally used in one or two situations.  Sometimes space or the shape of a tooth can make placing a traditional crown or filling a less than optimal choice.  A lab's ability to shape and contour the restoration means the chances of post operative complications can be reduced.  Inlays/onlays are also perfect when the concern is about esthetics or durability.  Numerous studies show inlays/onlays to be very durable when compared to a traditional filling of equivalent size.  Additionally, regular fillings are hard pressed to match the esthetic results associated with an inlay or onlay. 

Keep in mind that, just like crowns, inlays and onlays come in a variety of materials.  Some offer increased esthetics, while others increase the durability.  We's be happy to discuss your options with you.