The most widely used glass-ceramic is lithium disilicate (LD) because of its remarkable optical qualities, high strength, and simplicity manufacture. Greater marginal reduced porosity, net-shaped manufacturing by pressing are further benefits LD. development yttrium stabilized trigonal zirconia polycrystalline (Y-TZP) ceramics the result pursuit for a material with both mechanical capabilities,...

The purpose of this study is was to compare the color stability alkasite and other restorative materials commonly used in field pediatric dentistry a change response various beverages. Test specimens glass ionomer, resin modified material, composite were prepared, measured after thermocycling. Each specimen also subdivided into 5 groups submerged PBS, coffee, green tea, coke, orange juice analy...

Pistachio paste is produced from ground roasted kernel. This study focused on the influence of the milling process on colloidal stability, rheological behavior and color of pistachio paste. The colloidal stability of pistachio paste samples increased with a reduction of particle size from 31.4 to 15.10µm. The Herschel-Bulkley model was found to be the best model to describe the flow behavior of...

Color constancy is the perceived stability of the color of objects under different illuminants. Four-layer neural network for color constancy has been developed. It has separate input channels for the test chip and for the background. Input of network was RGB receptors. Second layer consisted of color opponent cells and output have three neurons signaling x, y, Y coordinates (1931 CIE). Network...

Anthocyanins are a broad class of water soluble pigments found in a wide array of plants. They are responsible for a variety of the attractive colors found in fruits including red, purple, orange, and blue. There use as a natural alternative to synthetic colorants has been investigated extensively in the past several years as consumers have been asking for greater choice in the marketplace. The...

OBJECTIVE Many commercial dental materials are used to fabricate interim restorations. This study aimed to compare the color stability and the marginal integrity of four different interim crown materials. MATERIALS AND METHODS An ivorine right maxillary central incisor was prepared for a full coverage all-ceramic restoration. A total of 36 specimens in the form of crowns were fabricated on th...