Biomaterial Database

Anterior crowns and gingival health. 1979

C Janenko, and R J Smales

Clinical examination was made of 101 aluminous porcelain jacket crowns and 88 porcelain bonded to metal crowns. Overcontouring of the crowns appeared to be less important in causing gingivitis than the location of margins, marginal defects, and unglazed surfaces. Laboratory studies showed a marginal gap of 154 +/- 90 micron in the fit of porcelain jacket crowns on brass dies. Retention of plaque on well-glazed surfaces could not be detected and polished gold showed no plaque formation except along some marginal defects.

UI	MeSH Term	Description	Entries
D001840	Dental Bonding	An adhesion procedure for orthodontic attachments, such as plastic DENTAL CROWNS. This process usually includes the application of an adhesive material (DENTAL CEMENTS) and letting it harden in-place by light or chemical curing.	Bonding, Dental,Cure of Orthodontic Adhesives,Curing, Dental Cement,Dental Cement Curing,Orthodontic Adhesives Cure
D003442	Crowns	A prosthetic restoration that reproduces the entire surface anatomy of the visible natural crown of a tooth. It may be partial (covering three or more surfaces of a tooth) or complete (covering all surfaces). It is made of gold or other metal, porcelain, or resin.	Dental Crowns,Crown, Dental,Crowns, Dental,Dental Crown,Crown
D003722	Dental Alloys	A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions for use in restorative or prosthetic dentistry.	Alloy, Dental,Alloys, Dental,Dental Alloy
D003773	Dental Plaque	A film that attaches to teeth, often causing DENTAL CARIES and GINGIVITIS. It is composed of MUCINS, secreted from salivary glands, and microorganisms.	Plaque, Dental
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
D003779	Denture Design	The plan, delineation, and location of actual structural elements of dentures. The design can relate to retainers, stress-breakers, occlusal rests, flanges, framework, lingual or palatal bars, reciprocal arms, etc.	Denture Designs,Design, Denture,Designs, Denture
D005881	Gingiva	Oral tissue surrounding and attached to TEETH.	Gums,Interdental Papilla,Papilla, Interdental,Gum
D005891	Gingivitis	Inflammation of gum tissue (GINGIVA) without loss of connective tissue.	Gingivitides
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000535	Aluminum	A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98.	Aluminium,Aluminium-27,Aluminum-27,Aluminium 27,Aluminum 27