Results 71 to 80 of about 8,286 (188)

The combined effect of food-simulating solutions, brushing and staining on color stability of composite resins

Acta Biomaterialia Odontologica Scandinavica, 2017
Objective: This study evaluated the effect of food-simulating media associated with brushing and coffee staining on color stability of different composite resins. Materials and methods: Eighty specimens were prepared for each composite: Grandio SO (Voco),
Tânia Mara Da Silva, Ana Luísa Leme Simões Sales, Cesar Rogerio Pucci, Alessandra Bühler Borges, Carlos Rocha Gomes Torres   +4 more
doaj   +1 more source

Ultra‐High‐Speed Sintering of 3.5Y‐TZP Zirconia: Time Reduction Without Compromising Translucency

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To assess, firstly, the impact of three sintering speeds on translucency and grain size of 3.5Y‐TZP zirconia (Katana HT) across clinically relevant thicknesses, and secondly, the effect of thermocycling on translucency. Materials and Methods Disc specimens were fabricated at six thicknesses (0.7–2.0 mm) and sintered using SLOW (7 h),
Tatiana Roman, Hamdi Jmal, Teissir Ben Ammar , Adrien Greffet, Marc Lenertz, Olivier Etienne   +5 more
wiley   +1 more source

Effects of Surface Abrasion With Airborne‐Particles and Surface Etching With Hydrofluoric Acid on Color Difference and Translucency of Nano‐Hybrid Ceramic

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To evaluate the effects of alumina airborne‐particle abrasion, glass‐bead airborne‐particle abrasion, and hydrofluoric acid etching of intaglio surfaces on the color difference and translucency of a nano‐hybrid ceramic after cementation to resin abutment specimens, and to analyze the relationships between surface roughness and these
Hyuk‐Joon Lee, Jin‐Won Jang, Zee‐Hoon Park, Ji‐Hwan Kim   +3 more
wiley   +1 more source

Performance in Gingival Shade Selection Among Undergraduate Dental Students According to Gender: A Pilot Study

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Statement of Problem Color perception is a subjective process that can vary considerably among individuals. However, limited research has examined gingival shade selection according to observer gender. Objectives According to observer gender and gingival site, the objectives of this study were: (1) to compare subjective visual gingival shade ...
Manuel Antonio Sanchez de Martín, Adrian Curto Aguilera, Ana Maria Martín Casado, Cristina Gómez‐Polo   +3 more
wiley   +1 more source

The Effect of the Level of Goat Liver Addition to Goat Minced Meat on the Near-Infrared Spectra, Colour, and Shelf Life of Samples

Foods
This study aimed to evaluate the utilisation of near-infrared (NIR) spectroscopy combined with chemometric techniques to identify the addition of goat liver to goat minced meat and to monitor the shelf life of the samples up to 8 days of storage.
Louwrens Christiaan Hoffman, Wencong Wu, Shuxin Zhang, Michel Beya, Daniel Cozzolino   +4 more
doaj   +1 more source

Visual assessment of viewing direction based on color discrimination

Journal of Information Display, 2019
For the large-screen TV viewer, it makes sense to obtain visual information within the same viewing direction rather than based on any physical change between the normal-axis and viewing directions, as in the conventional measurement methods.
Moon-Cheol Kim
doaj   +1 more source

Effect of Whitening Dentifrices on Short‐Term Color Stability and Tooth Sensitivity After In‐Office Bleaching: A Randomized Single‐Blind Clinical Trial

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This randomized, single‐blind clinical trial evaluated the effect of whitening dentifrices on short‐term color stability and tooth sensitivity after in‐office bleaching. Materials and Methods A total of 120 participants treated with 40% hydrogen peroxide were randomly assigned to six dentifrice groups (n = 20): one conventional ...
Adem Gok, Begum Koprucuogullari
wiley   +1 more source

Evaluation of color matching of three single-shade composites employing simulated 3D printed cavities with different thicknesses using CIELAB and CIEDE2000 color difference formulae

Reviews on Advanced Materials Science
This study assessed the color-matching capability of three single-shade composites that employ simulated resin 3D-printed cavities with different cavity depths using CIELAB and CIEDE2000 formulas.
Kariper Engin, Cilingir Aylin
doaj   +1 more source

Effect of sintering cycle on the strength and translucency of multilayered zirconia

Journal of Prosthodontics, EarlyView.
Abstract Purpose A newly introduced sintering protocol promises to offer higher translucency while not significantly compromising the flexural strength of the material. However, the effect of the novel sintering protocol has not been thoroughly validated.
Kedith Sawangsri, Steven Makowka, Sompop Bencharit, Hyeongil Kim   +3 more
wiley   +1 more source

A Step Towards Real-Time Release Testing of Pharmaceutical Tablets: Utilization of CIELAB Color Space

Pharmaceutics
Background: The pharmaceutical industry is shifting from end-product testing towards real-time release testing. This approach is based on the continuous collection of process data and product information, which is finally utilized for the release ...
René Brands, Trieu Nam Le, Jens Bartsch, Markus Thommes   +3 more
doaj   +1 more source