PURPOSE The opacity of zirconia is an esthetic disadvantage that hinders achieving natural and shade-matched restorations. The aim of this study was to evaluate the translucency of non-colored and colored framework zirconia and monolithic zirconia. MATERIALS AND METHODS The three groups tested were: non-colored framework zirconia, colored framework zirconia with the A3 shade according to Vita...

Rendering translucent materials in real time is usually done by using surface diffusion and/or (translucent) shadow maps. The downsides of these approaches are, that surface diffusion cannot handle translucency effects that show up when rendering thin objects, and that translucent shadow maps are only available for point light sources. Furthermore, translucent shadow maps introduce limitations ...

The authors consider the possibility of using color Doppler of the ductus venosus and the measurement of nuchal translucency as a screening test for alterations in fetal cardiac functions in the first trimester of gestation. Review of the literature suggests that the combination of the ultrasonographic measurement of nuchal translucency and Doppler at 10 and 14 weeks of gestation can be effecti...

Existing subsurface scattering rendering algorithms try to reproduce the phenomenon aiming at physically accurate results. Recent research has demonstrated that in some scenarios, to make some assumptions about the way we perceive translucency helps us speeding up calculus achieving real-time results. In this paper we present a new algorithm based on previous perceptual studies general enough t...

OBJECTIVE To examine the significance of fetal nuchal translucency at 10-14 weeks' gestation in the prediction of abnormal fetal karyotype. DESIGN Prospective screening study. SETTING The Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London. SUBJECTS 827 fetuses undergoing first trimester karyotyping by amniocentesis or chorionic villus sampling. MAIN OU...

The visual mechanisms behind our ability to distinguish translucent and opaque materials is not fully understood. Disentanglement of the contributions surface reflectance subsurface light transport still image structure an ill-posed problem. While overwhelming majority works addressing translucency perception use static stimuli, behavioral studies show that human observers tend move objects ass...

Keyword Down syndrome, Trisomy, Nuchal Translucency, Chromosomal Abnormalities, Gray Level Cooccurrence Matrix(GLCM), Support Vector Machine (SVM) Down syndrome or Trisomy 21 is a genetic disorder which causes mental disability to the baby during the gestation period. Ultrasound scan, a noninvasive test which includes ultrasound fetal image scan for the Nuchal Translucency measurement (NT). Thi...

Purpose To investigate the effects of translucency and cusp inclination on micro-shear bond strength (µSBS) zirconia to self-adhesive resin cement (SARC).Methods Sixty U-shaped specimens with 1.0 mm thickness consisting three planes (0°, 20°, 30°) simulating different inclinations were fabricated from blocks high, moderate, low (n=20). SARC was bonded specimen light-cured for 40 s. The µSBS tes...