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Achieving the desired colour in discoloured teeth, using leucite-based cad-cam laminate Systems

Turgut, Sedanur ; Bagis, Bora ; Ayaz, Elif Aydogan

Journal of dentistry, 2014-01, Vol.42 (1), p.68-74 [Periódico revisado por pares]

England: Elsevier Ltd

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Título:
Achieving the desired colour in discoloured teeth, using leucite-based cad-cam laminate Systems
Autor: Turgut, Sedanur ; Bagis, Bora ; Ayaz, Elif Aydogan
Assuntos: Aesthetics ; Aluminum Silicates - chemistry ; CAD CAM ; Cement ; Ceramics ; Color ; Colorimetry - instrumentation ; Colour ; Composite Resins - chemistry ; Computer-Aided Design ; Dental Abutments ; Dental care ; Dental Porcelain - chemistry ; Dental Prosthesis Design ; Dental Veneers ; Dentistry ; Humans ; Laminate veneers ; Light ; Materials Testing ; Polymerization ; Prosthesis Coloring ; Resin Cements - chemistry ; Surface Properties ; Teeth ; Tooth - pathology ; Tooth Discoloration - pathology ; Tooth Discoloration - rehabilitation
É parte de: Journal of dentistry, 2014-01, Vol.42 (1), p.68-74
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Abstract Objectives To evaluate the cumulative effect of the abutment tooth and resin cement colour on the resultant optical properties of porcelain laminate veneers (PLVs) fabricated with leucite-based CAD/CAM blocks with different shades and thicknesses. Methods A total of 224 ceramic specimens were prepared from the IPS Empress CAD with four different shades of HT-A1, LT-A1, MT-A1 and Bl-1. Resin composite discs were prepared with shade A3.5. For the cementation, 4 different shades of light-cure resin cements were chosen. L *, a *, and b * values, as well as the chroma (C) and hue (h) values of each cemented ceramic and the A1 shade table, were recorded. Results L *, C ab * and h ab * values of the cemented ceramics were influenced by ceramic shade, ceramic thickness, cement shade, and interaction terms of the three variables. There were significant differences between the 1-mm-thick ceramic veneers that exhibited higher L * and lower C ab * values compared with veneers that were 0.5 mm in thickness. Using the Tr shade cement resulted in lower L * and higher C ab * values for all thicknesses and ceramic shades, whereas the WO shade cement resulted in higher values. Conclusions The selected colour of a laminate restoration is significantly affected by the ceramic shade, ceramic thickness and resin cement shade. Using the WO shade resin cement seems to be more effective in masking the discoloured abutment tooth. Clinicians should also select the translucency level of the ceramic block with the shade when a leucite-based CAD/CAM system is chosen to treat a discoloured tooth.
Editor: England: Elsevier Ltd
Idioma: Inglês;Persa

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Achieving the desired colour in discoloured teeth, using leucite-based cad-cam laminate Systems

Turgut, Sedanur ; Bagis, Bora ; Ayaz, Elif Aydogan

England: Elsevier Ltd

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