Results 71 to 80 of about 2,517 (220)

Análise química de pigmentos minerais naturais de Itabirito (MG) Chemical analysis on natural mineral pigments from Itabirito (MG)

Cerâmica, 2007
Este trabalho tem o propósito de estudar composições e aplicações de pigmentos de Minas Gerais. Foi realizado um estudo qualitativo e quantitativo de pigmentos naturais coletados na região de Itabirito.
A. R. P. Pereira, M. J. de S. F. da Silva, J. A. dos S. Oliveira   +2 more
doaj   +1 more source

Effects of Substructure Color and Restoration Thickness on the Final Color of Ultra‐Translucent Zirconia Ceramics

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This in vitro study aimed to evaluate the effects of substructure color and restoration thickness on the final color of shade‐gradient ultra‐translucent zirconia ceramics. Material and Methods A total of 180 flat‐shaped ultra‐translucent zirconia specimens (5Y‐PSZ) with thicknesses of 0.4, 0.6, and 0.8 mm (n = 60) were fabricated and
Elif Yılmaz Biçer, Merve Bankoğlu Güngör, Cemal Aydın   +2 more
wiley   +1 more source

Effect of Delayed Exposure to Staining Agents on the Color Stability and Translucency of Esthetic Resin Composites

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the effect of delayed exposure to staining agents and resin composite type on the discoloration and translucency changes of esthetic resin composites. Materials and Methods Five resin composites (Asteria, Tokuyama; Brillant EverGlow, Coltene; GC A'chord; Harmonize; and Filtek Ultimate, 3M ESPE) were tested. Disc specimens
Hüseyin Hatırlı, Sevilay Köse, Dorukcan Yıldırım, Gülşah Tonga, Emine Şirin Karaarslan   +4 more
wiley   +1 more source

Effect of Successive Bleaching Treatments Followed by Staining on Color, Whiteness, and Translucency of Polymer‐Based CAD‐CAM Materials

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate differences in color, whiteness, and translucency of CAD‐CAM materials after successive bleaching treatments and coffee immersion. Materials and Methods Lava Ultimate (LU) and VITA Enamic (VE) were divided into four groups (n = 12): untreated (control), 35% hydrogen peroxide (WH), 10% carbamide peroxide (OP), or WH ...
Alejandro Cardenas Ramos, Bruno Arruda Mascaro, José Maurício dos Santos Nunes Reis, Lívia Nordi Dovigo, María M. Pérez, Renata Garcia Fonseca   +5 more
wiley   +1 more source

Comprehensive analysis and study of the stratification phenomena of painted pottery unearthed from the Banpo site in China

Advances in Archaeomaterials
Historical information is preserved in cultural artifacts, particularly pottery, and scientific techniques are crucial for uncovering their past. This study presents a multi-method interdisciplinary analysis of painted pottery from the Banpo site of the ...
Xinyuan Su, Zhanhui Peng, Tao Tan, Huifang Liu, Huiping Xing, Baoying Liu, Xiaolian Chao   +6 more
doaj   +1 more source

Comparative Evaluation of the Effect of Different Polishing Systems on Surface Roughness of Permanent 3D‐Printed Resins and a CAD/CAM Restorative Material

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This study evaluated the effects of polishing systems, staining solutions, and aging time on the surface roughness of Computer‐aided design and computer‐aided manufacturing (CAD/CAM) and three‐dimensional (3D)‐printed permanent restorative materials. Methods Three 3D‐printed resins (VarseoSmile Crown plus (VSC), Saremco PrintCrowntec
Nilay Bayraktar, Nurgül Çetin Tuncer, Çağatay Barutçugil   +2 more
wiley   +1 more source

Technical advantages bridging the preservation limits of painted decoration of Neolithic ceramic figurines

Virtual Archaeology Review
Painting on ceramic objects is one of the most outstanding features of visual narration of the Neolithic material culture in Southeastern and partly in Central Europe.
Ludmila Kaňáková, Vojtěch Nosek, Attila Kreiter, László Előd Aradi, Martin Košťál   +4 more
doaj   +1 more source

Effects of Acidic Media on the Mechanical and Optical Properties of Digitally Designed Restorative Materials

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This investigation assessed how acidic environments affect the optical behavior, surface roughness, and hardness of a newly developed 3D‐printed permanent resin compared with commonly used computer‐aided design/computer‐aided manufacturing restorative blocks.
Ismini Papoulidou, Petros Mourouzis, Andrea Baldi, Nicola Scotti, Dimitrios Dionysopoulos   +4 more
wiley   +1 more source

Recuperación de sílice residual de columnas de cromatografía en la síntesis sol-gel de pigmentos

Boletín de la Sociedad Española de Cerámica y Vidrio, 2000
The use of a silica waste of support chromatography process as raw material in the synthesis of ceramic pigments based in zircon network (yellow of praseodymium, turkish blue of vanadium and pink koral of iron), is analized in this study.
Grañana, M. C., Vicent, J. B., Llusar, M., Tena, M. A., Monrós, G.   +4 more
doaj  

Effect of Cigarette Smoking on the Surface Roughness, Color, and Translucency of Zirconia Produced by Additive and Subtractive Manufacturing

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To compare the surface roughness, color stability, and translucency of zirconia produced by additive manufacturing (AM) and subtractive manufacturing (SM) after exposure to cigarette smoking. Materials and Methods A total of 60 disc‐shaped specimens were fabricated from 2 methods: AM (INNI Cera BCM W500/1000) and SM (VITA YZ T).
Bengisu Mahmutluoglu, Nazli Aydin, Koray Soygun   +2 more
wiley   +1 more source