نتایج جستجو برای: intracranial translucency

تعداد نتایج: 47701  

2017
Sebnem Ulviye Buyukkaplan Mehmet Mustafa Özarslan Çağatay Barutcigil Merve Arslan Kubilay Barutcigil Elif Ece Yoldan

PURPOSE Beverages may affect the translucency of esthetic dental restorative materials. The aim of the present study was to investigate the effects of coffee and red wine on the translucency of a PICN material with two translucency levels, and finished with different methods. MATERIALS AND METHODS 2M2 high translucent and translucent VITA Enamic hybrid ceramic blocks were investigated. Rectan...

2012
Homan Naeimi Akbar Keyvan Moharamzadeh Duncan J. Wood Richard Van Noort

The aim of the present study was to compare the translucency of different shades of two highly aesthetic multilayered restorative composite resins. In total nine shades from Esthet.X and ten shades from Filtek Supreme composite resins were chosen. Discs of each shade were prepared (N = 3) and light-cured. Total and diffuse transmittance values for each sample were measured. Statistical analysis...

Journal: :Journal of vision 2014
Bei Xiao Bruce Walter Ioannis Gkioulekas Todd Zickler Edward Adelson Kavita Bala

Translucency is an important aspect of material appearance. To some extent, humans are able to estimate translucency in a consistent way across different shapes and lighting conditions, i.e., to exhibit translucency constancy. However, Fleming and Bülthoff (2005) have shown that that there can be large failures of constancy, with lighting direction playing an important role. In this paper, we e...

2016
Mehdi Shirinzad Loghman Rezaei-Soufi Maryam Sadat Mirtorabi Farshid Vahdatinia

OBJECTIVES Composite restorations must have tooth-like optical properties namely color and translucency and maintain them for a long time. This study aimed to compare the effect of accelerated artificial aging (AAA) on the translucency of three methacrylate-based composites (Filtek Z250, Filtek Z250XT and Filtek Z350XT) and one silorane-based composite resin (Filtek P90). MATERIALS AND METHOD...

Journal: :General dentistry 2017
Todd D Church Jeffrey P Jessup Villa L Guillory Kraig S Vandewalle

The purpose of this study was to evaluate the translucency and strength of highly translucent monolithic zirconia ceramic materials recently introduced to the market. Four monolithic zirconium oxide materials promoted as having high translucency (BruxZir Shaded 16, BruxZir HT, Lava Plus, and inCoris TZI C) were compared to a high-translucency, lithium disilicate monolithic glass-ceramic materia...

ژورنال: مجله دندانپزشکی 2019

Background and Aims: The bleaching agents can lead to color and translucency changes in composite resins. Due to the increasing use of the nano composites and the silorane-based composites, this study aimed at examining the color and translucency changes of these restorations after bleaching agents. Materials and Methods: In this experimental - laboratory study, 198 composite discs were divide...

Journal: :CoRR 2009
S. Nirmala V. Palanisamy

The Nuchal Translucency thickness measurement is made to identify the Down Syndrome in screening first trimester fetus and presented in this paper. The mean shift analysis and canny operators are utilized for segmenting the nuchal translucency region and the exact thickness has been estimated using Blob analysis. It is observed from the results that the fetus in the 14th week of Gestation is ex...

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2001
A P Souka E Krampl S Bakalis V Heath K H Nicolaides

OBJECTIVES To study the outcome of chromosomally normal pregnancies with increased nuchal translucency at the 10-14-week scan. DESIGN Retrospective study of 1320 chromosomally normal singleton pregnancies with nuchal translucency of > or = 3.5 mm. In addition to fetal karyotyping these patients were managed with follow-up scans at 14-16 and 20-22 weeks, specialist fetal echocardiography and i...

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