Biomaterial Database

Porcelain onlays. 1995

C Mabrito, and M Roberts

CMR Dental Laboratory, Idaho Falls 83404, USA.

For years porcelain-fused-to-metal crowns have been the only restoration for posterior teeth in which strength and esthetics were important. Predictable results can now be achieved with a much more conservative approach--the bonded porcelain onlay. This article reviews the preparation designs as well as several types of materials currently available for the cosmetic onlay. An application using porcelain onlays to restore vertical dimension is explored. With this technique, moreover, the porcelain onlay is combined with porcelain veneer to achieve a functional and esthetic restoration.

UI	MeSH Term	Description	Entries
D007284	Inlays	Restorations of metal, porcelain, or plastic made to fit a cavity preparation, then cemented into the tooth. Onlays are restorations which fit into cavity preparations and overlay the occlusal surface of a tooth or teeth. Onlays are retained by frictional or mechanical factors.	Dental Inlays,Dental Onlays,Onlays,Dental Inlay,Dental Onlay,Inlay, Dental,Inlays, Dental,Onlay, Dental,Onlays, Dental,Inlay,Onlay
D010347	Patient Care Planning	Usually a written medical and nursing care program designed for a particular patient.	Nursing Care Plans,Goals of Care,Plans, Nursing Care,Care Goal,Care Goals,Care Plan, Nursing,Care Planning, Patient,Care Plans, Nursing,Nursing Care Plan,Plan, Nursing Care,Planning, Patient Care
D003737	Dental Cavity Preparation	An operation in which carious material is removed from teeth and biomechanically correct forms are established in the teeth to receive and retain restorations. A constant requirement is provision for prevention of failure of the restoration through recurrence of decay or inadequate resistance to applied stresses. (Boucher's Clinical Dental Terminology, 4th ed, p239-40)	Cavity Preparation, Dental,Cavity Preparations, Dental,Dental Cavity Preparations,Preparation, Dental Cavity,Preparations, Dental Cavity
D003776	Dental Porcelain	A type of porcelain used in dental restorations, either jacket crowns or inlays, artificial teeth, or metal-ceramic crowns. It is essentially a mixture of particles of feldspar and quartz, the feldspar melting first and providing a glass matrix for the quartz. Dental porcelain is produced by mixing ceramic powder (a mixture of quartz, kaolin, pigments, opacifiers, a suitable flux, and other substances) with distilled water. (From Jablonski's Dictionary of Dentistry, 1992)	Porcelain,Porcelain, Dental,Dental Porcelains,Porcelains,Porcelains, Dental
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014716	Vertical Dimension	The length of the face determined by the distance of separation of jaws. Occlusal vertical dimension (OVD or VDO) or contact vertical dimension is the lower face height with the teeth in centric occlusion. Rest vertical dimension (VDR) is the lower face height measured from a chin point to a point just below the nose, with the mandible in rest position. (From Jablonski, Dictionary of Dentistry, 1992, p250)	Mandibular Rest Position,Rest Vertical Dimension,Vertical Dimension at Rest,Vertical Dimension of Occlusion,Dimension, Rest Vertical,Dimension, Vertical,Dimensions, Rest Vertical,Dimensions, Vertical,Mandibular Rest Positions,Occlusion Vertical Dimension,Occlusion Vertical Dimensions,Position, Mandibular Rest,Positions, Mandibular Rest,Rest Position, Mandibular,Rest Positions, Mandibular,Rest Vertical Dimensions,Vertical Dimension, Rest,Vertical Dimensions,Vertical Dimensions, Rest