Partial Crowns

A partial crown, inlay, or onlay is an indirect restoration consisting of a solid substance either porcelain or gold that is fitted to a cavity or a fractured tooth and cemented or bonded into place. An onlay is the same as an inlay except that it extends to replace a cusp of your tooth. Partial crowns are used for one to four surfaces of your tooth that is infected with decay or fractured. It does not completely cover your tooth like a crown. When a fracture or decay is incorporated in the areas of your tooth that a composite or an amalgam is inadequate, such as a cusp fracture, the decay undermines the perimeter walls of a tooth a partial crown is recommended. These restorations have proper contouring for your gingival (gum) health, resistance to occusal forces (your bite), marginal integrity, precision of fabrication, and protection against recurrent decay which the quality offers an excellent alternative to composite and amalgam restorations. Partial crowns allow for conservation of your tooth structure and the only alternative is a crown. There are two methods of partial crowns.

First one is called the indirect method. It is the involving of dental impressions of the prepared tooth by Dr. Alexander M. Della Bella to be able to fabricate the partial crown outside the mouth by a dental laboratory. Then after the dental laboratory has seen the impression they will custom fabricate your partial crown to fit your tooth or implant. The fabrication methods used by the dental laboratory require intense heat for castings of metal or firing of porcelain which would not be possible to complete inside the mouth. After the dental laboratory has completed your custom fabricated partial crown you will have to return to the office to have it seated or cemented into place. The indirect method is a two step procedure. To recap: First appointment you come in to match shade, prep the tooth, impressions, and placing a temporary. Then about two to three weeks later you will then return for your second appointment to remove your temporary and cement your custom made crown on your tooth.

The second method is CAD/CAM Dentistry or Cerec. These dental restorations are done in one appointment. The restorations are milled from solid blocks of various shades of porcelain matching the shade of the tooth that you are planning on restoring. After Dr. Alexander M. Della Bella prepares the tooth, then there are multiple images with an intra-oral camera taken of the tooth and surrounding teeth. Then those images draw data into the computer and software to create a virtual restoration for your tooth that is being restored. Dr. Alexander M. Della Bella then designs the tooth to make it a custom fit and a one of kind work of art. When the designing is done the software then sends the custom restoration design to a milling machine and begins to carve the restoration out of the solid block of porcelain. After the restoration is milled you now ready to start the bonding process. Your restoration is bonded into place and it is beautiful and esthetically pleasing. Dr. Alexander M. Della Bella enjoys designing and the technology involved in doing Cerec or CAD/CAM restorations their uniform naturally blends extremely well with the natural tooth structure leaving you with a beautiful cosmetic restoration. Since theses restorations contain NO METAL to block subsequent x-rays, Dr. Alexander M. Della Bella is able to keep track of potential decay underneath a CAD/CAM or Cerec restoration whereas the indirect or conventional porcelain to metal or even the traditional gold restorations block x-ray radiation disallowing such evaluation over time of the decay.