Biomaterial Database

Colour stability of provisional crown and bridge restoration materials. 1998

R Lang, and M Rosentritt, and A Leibrock, and M Behr, and G Handel

Department of Prosthetic Dentistry, University Clinics, Regensburg, Germany.

OBJECTIVE In an in vitro study to determine the colour stability of provisional restoration materials, the PMMA synthetics Trimm and Cronsin and the bis-acrylic composites Protemp Garant, Protemp Garant NF, Protemp II and Provipont DC were investigated. METHODS The colour changes of the cylindrical untreated samples were measured in comparison with samples after 24 and 72 hours of artificial ageing in a Suntest CPS+ UV ageing device using the Minolta CM 3500d spectrophotometer according to the CIE-L*a*b* system. RESULTS Trimm (light), Cronsin (brown, yellow and universal), Provipont DC (yellow) and Protemp Garant NF (extra light) displayed the greatest discoloration with values > or = 4-21 delta E, where discoloration toward yellow could be discerned. The remaining materials showed lower luminance reflectance values of < or = 1-4 delta E, and therefore greater colour stability. CONCLUSIONS Because of their colour stability the materials Cronsin (grey), Protemp Garant (yellow), Protemp II (light), Protemp Garant NF (yellow, light and extra light) could also be used as long-term interim prosthetics.

UI	MeSH Term	Description	Entries
D008422	Materials Testing	The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.	Biocompatibility Testing,Biocompatible Materials Testing,Hemocompatibility Testing,Testing, Biocompatible Materials,Testing, Hemocompatible Materials,Hemocompatibility Testings,Hemocompatible Materials Testing,Materials Testing, Biocompatible,Materials Testing, Hemocompatible,Testing, Biocompatibility,Testing, Hemocompatibility,Testing, Materials,Testings, Biocompatibility
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
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000704	Analysis of Variance	A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.	ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
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
D017438	Bisphenol A-Glycidyl Methacrylate	The reaction product of bisphenol A and glycidyl methacrylate that undergoes polymerization when exposed to ultraviolet light or mixed with a catalyst. It is used as a bond implant material and as the resin component of dental sealants and composite restorative materials.	Bis-GMA,Bis-GMA Polymer,2-Propenoic acid, 2-methyl-, (1-methylethylidene)bis(4,1-phenyleneoxy(2-hydroxy-3,1-propanediyl)) ester, homopolymer,Adaptic,Bis(Phenol A-Glycidyl Methacrylate),Bis(Phenol A-Glycidyl Methacrylate), Homopolymer,Bis(Phenol A-Glycydyl Methacrylate),Bis-GMA Resin,Bisphenol A-Glycidyl Methacrylate Homopolymer,Bisphenol A-Glycidyl Methacrylate Polymer,Concise Composite Resin,Concise Enamel Bond,Concise Enamel Bond System,Concise Resin,Concise White Sealant,Conclude Composite Resin,Conclude Resin,Delton,Epoxylite-9075,Kerr Pit and Fissure Sealant,Kerr Sealer,Nuva-Seal,Panavia Opaque,Poly(Bis-GMA),Retroplast,Silux,Bis GMA,Bis GMA Polymer,Bis GMA Resin,Bis-GMA Polymers,Bis-GMA Resins,Bisphenol A Glycidyl Methacrylate,Bisphenol A Glycidyl Methacrylate Homopolymer,Bisphenol A Glycidyl Methacrylate Polymer,Bond, Concise Enamel,Composite Resin, Concise,Composite Resin, Conclude,Composite Resins, Concise,Concise Composite Resins,Concise Resins,Enamel Bond, Concise,Epoxylite 9075,Epoxylite9075,Methacrylate, Bisphenol A-Glycidyl,Nuva Seal,NuvaSeal,Opaque, Panavia,Polymer, Bis-GMA,Polymers, Bis-GMA,Resin, Bis-GMA,Resin, Concise,Resin, Concise Composite,Resin, Conclude,Resin, Conclude Composite,Resins, Bis-GMA,Resins, Concise,Resins, Concise Composite
D017797	Prosthesis Coloring	Coloring, shading, or tinting of prosthetic components, devices, and materials.	Dental Prosthesis Coloring,Coloring, Dental Prosthesis,Prosthesis Coloring, Dental,Coloring, Prosthesis
D018709	Statistics, Nonparametric	A class of statistical methods applicable to a large set of probability distributions used to test for correlation, location, independence, etc. In most nonparametric statistical tests, the original scores or observations are replaced by another variable containing less information. An important class of nonparametric tests employs the ordinal properties of the data. Another class of tests uses information about whether an observation is above or below some fixed value such as the median, and a third class is based on the frequency of the occurrence of runs in the data. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1284; Corsini, Concise Encyclopedia of Psychology, 1987, p764-5)	Kolmogorov-Smirnov Test,Kruskal-Wallis H Statistic,Mann-Whitney U Test,Rank-Sum Tests,Spearman Rank Correlation Coefficient,Wilcox Test,Wilcoxon Rank Test,Non-Parametric Statistics,Nonparametric Statistics,Statistics, Non-Parametric,Kolmogorov Smirnov Test,Mann Whitney U Test,Non Parametric Statistics,Rank Sum Tests,Rank Test, Wilcoxon,Rank-Sum Test,Statistics, Non Parametric,Test, Kolmogorov-Smirnov,Test, Mann-Whitney U,Test, Rank-Sum,Test, Wilcox,Test, Wilcoxon Rank,Tests, Rank-Sum,U Test, Mann-Whitney
D019904	Polymethyl Methacrylate	Polymerized methyl methacrylate monomers which are used as sheets, moulding, extrusion powders, surface coating resins, emulsion polymers, fibers, inks, and films (From International Labor Organization, 1983). This material is also used in tooth implants, bone cements, and hard corneal contact lenses.	PMMA,Polymethylmethacrylate,Acron,Acrylic Bone Cement,CMW Bone Cement,Implast,Kallocryl K,Lucite,Methyl Acrylic Plastic,Palacos R,Palavit,Perspex,Plexiglas,Plexiglass,Poly(methyl methacrylate),Polymethyl Methacrylate, Isostatic,Polymethyl Methacrylate, Simplex Opaque,Polymethyl Methacrylate, Surgical Simplex Bone Cement, Ammonium Salt,Polymethyl Methacrylate, Surgical Simplex P,Polymethyl Methacrylate, Syndiostatic,Polymethylmetacrylate,Sol,Superacryl,Isostatic Polymethyl Methacrylate,Methacrylate, Polymethyl,Methacrylate, Syndiostatic Polymethyl,Syndiostatic Polymethyl Methacrylate

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