Dental Ceramic Layering Techniques

Shade with depth in a metal ceramics system can be obtained only with a sufficient thickness of translucent porcelain.

Dental ceramic layering techniques.

In the long run it can lose its endurance against shear and draw strengths that occur while chewing. The background for basic techniques for building porcelain layers is explained with photographs in this chapter. Layer 1 primary or opaque layer. Dental porcelain also known as dental ceramic is a dental material used by dental technicians to create biocompatible lifelike dental restorations such as crowns bridges and veneers evidence suggests they are an effective material as they are biocompatible aesthetic insoluble and have a hardness of 7 on the mohs scale.

Dental ceramics are usually composed of nonmetallic inorganic structures primarily containing compounds of oxygen with one or. In this article a simple and predictable restorative technique will be described that concentrates on the recreation of dental tissues of natural thickness layer by layer. Normally the porcelain has the ability to glaze itself by forming a vitrified layer on the surface of dental porcelain ceramic containing a glass phase b. Applied or add on glaze.

For certain dental prostheses such as three unit molars porcelain. Dental over glazes are composed of clear colorless low fusing glass powder painted on the fired crown surface. Esthetically these materials are preferred alternatives to the traditional materials in order to meet the patients demands for improved esthetics. Over the last decade it has been observed that there is an increasing interest in the ceramic materials in dentistry.

This gives a natural vivid lustrous appearance to the veneers that create the most natural life like smile makeovers that can be achieved. Today s ceramic restoration application despite its popularity gained through esthetical advantages and superior hygienically features has a fragile structure due to its low tensile strength quality. It is a thin layer positioned directly on the metal framework. Feldspathic veneers and crowns use a layering technique where layers of porcelain are laid down and the tooth is grown much like a pearl or natural tooth grows to create feldspathic veneers.

The amount of abutment prepared should be greater than that in a full porcelain crown. Dental ceramics is applied in several layers normally 4 but it can be more. During build up the technician takes into account all the information received from the dental office shade other details. Dental ceramics are sensitive to microcracks that show up on surfaces.

23 although these metal ceramic bilayers are still considered the gold standard for fpds.