Biomaterial Database

[Color comparison of VITA shade guide and metal ceramic restoration]. 1999

H Yang, and J Sun, and Z Wang

First Qingdao Sanatoria, Jinan Military Region.

OBJECTIVE To understand color distribution of Vita shade guide and metal ceramic restoration and make Vita shade guide more reasonable in clinical applying. METHODS The international standard CIE1976L*a*b* color system and Minolta CR-100 spectrocolorimeter were selected to measure and compare the characteristics of the shade guide and metal ceramic restoration. RESULTS Color differences were noted between the shade guide and ceramic restorations. The value of metal ceramic restoration was brighter than that of VITA shade guide tab. There was different chroma between metal ceramic restoration and Vita shade guide. Metal ceramic restorations were yellower and redder. But no saturation differences were found between ceramic restorations and D2, D3 tabs. CONCLUSIONS During clinical color-matching of metal ceramic porcelains, it is suggested that a VITA shape guide tab with lower brightness and paler color than that of adjacent teeth should be selected.

UI	MeSH Term	Description	Entries
D003124	Colorimetry	Any technique by which an unknown color is evaluated in terms of standard colors. The technique may be visual, photoelectric, or indirect by means of spectrophotometry. It is used in chemistry and physics. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
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
D003830	Denture, Partial, Fixed	A partial denture attached to prepared natural teeth, roots, or implants by cementation.	Fixed Bridge,Fixed Partial Denture,Pontic,Bridge, Fixed,Bridges, Fixed,Denture, Fixed Partial,Dentures, Fixed Partial,Fixed Bridges,Fixed Partial Dentures,Partial Denture, Fixed,Partial Dentures, Fixed,Pontics
D016876	Metal Ceramic Alloys	The fusion of ceramics (porcelain) to an alloy of two or more metals for use in restorative and prosthodontic dentistry. Examples of metal alloys employed include cobalt-chromium, gold-palladium, gold-platinum-palladium, and nickel-based alloys.	Metal Ceramic Restorations,Metallo-Ceramic Alloys,Porcelain-Metal Alloys,Metal Ceramic Alloy,Metallo-Ceramic Alloy,Metalloceramic Alloy,Metalloceramic Alloys,Alloy, Metal Ceramic,Alloy, Metallo-Ceramic,Alloy, Metalloceramic,Alloys, Metal Ceramic,Alloys, Metallo-Ceramic,Alloys, Metalloceramic,Alloys, Porcelain-Metal,Metallo Ceramic Alloy,Metallo Ceramic Alloys,Porcelain Metal Alloys,Restorations, Metal Ceramic
D017267	Dental Prosthesis Design	The plan and delineation of dental prostheses in general or a specific dental prosthesis. It does not include DENTURE DESIGN. The framework usually consists of metal.	Dental Prosthesis Designs,Design, Dental Prosthesis,Designs, Dental Prosthesis,Prosthesis Design, Dental,Prosthesis Designs, Dental
D017797	Prosthesis Coloring	Coloring, shading, or tinting of prosthetic components, devices, and materials.	Dental Prosthesis Coloring,Coloring, Dental Prosthesis,Prosthesis Coloring, Dental,Coloring, Prosthesis