Abstract Background Computer-aided design and computer-aided manufacturing (CAD-CAM) materials for prosthetic is gaining popularity in dentistry. However, limited information exists regarding the impact of thickness roughening treatment on optical properties contemporary CAD-CAM restorative materials. This study aimed to quantitatively evaluate translucency opalescence six dental response diffe...

This study aimed to evaluate the effects of repolishing on surface microhardness (SMH), color change (ΔE), and translucency parameter (TP) previously in situ eroded computer-aided design/computer-aided manufacturing (CAD/CAM) restorative materials human enamel. Each 8 volunteers wore an intraoral appliance containing 3 CAD/CAM material specimens (IPS e.max CAD lithium disilicate ceramic, Lava U...

An increasing number of new dielectrics are being reported for the development next-generation ceramic capacitors power electronics used in clean energy technologies. Here, high discharge density (Wdis) ~6.1 J cm−3 with efficiency (η)~72% under a pulsed field (Emax) 410 kV cm−1 is along temperature stability up to 150 °C (Emax = 200 cm−1) 0.5 K0.5Bi0.5TiO3-0.42BiFeO3-0.08Sm(Mg2/3Nb1/3)O3 (KBT-B...

<p>Permasalahan rendahnya gaya belajar dan efikasi diri di kelas IV SDN Gugus Dwija Kridha Kecamatan Mijen Kota Semarang menyebabkan hasil IPS. Penelitian ini bertujuan untuk mengetahui pengaruh dengan IPS siswa Semarang. merupakan penelitian kuantitatif desain korelasional. Sampel adalah sebanyak 141 siswa. Teknik pengumpulan data dalam melalui angket, dokumentasi wawancara. Hasil menunj...

PURPOSE Fracture of the veneering material of zirconia restorations frequently occurs in clinical situations. The purpose of this in vitro study was to compare the fracture strengths of zirconia crowns veneered with various ceramic materials by various techniques. MATERIALS AND METHODS A 1.2 mm, 360° chamfer preparation and occlusal reduction of 2 mm were performed on a first mandibular molar...

Recommendations to obtain the best bonding silica-based ceramics are prepare its surface by hydrofluoric-acid HF etching and regular application of a silane. This study investigated how HF-etching following ultrasonic water bath cleaning (recommended protocol improve with composite resin), modifies chemistry lithium disilicate glass-ceramic impacts chemical Lithium discs (IPS Emax Press, Ivocla...

Although propofol is commonly used for general anesthesia, its direct effects on left ventricular (LV) contractility and energetics remain unknown. Accordingly, we studied the effects of intracoronary propofol on excised cross-circulated canine hearts using the framework of the Emax (a contractility index)-PVA (systolic pressure-volume area, a measure of total mechanical energy)-V(O2) (myocardi...

In animal models, severing the chordae tendineae of the mitral valve reduces the maximum global left ventricular elastance (Emax,g), a load-independent measure of left ventricular systolic performance; moreover, chamber geometry is altered with systolic bulging in the region of the papillary muscle insertions. This suggests that forces transmitted by the mitral apparatus increase the regional v...

The effect of glazing on the mechanical properties monolithic high translucent zirconia is widely used to fabricate highly aesthetic and strong dental restorations using CAD-CAM technology. purpose this study was evaluate surface roughness different brands' materials Zirconia. 40 specimens from Zirconia block (VITA YZ®XT Color, Diameter 98.4x14mm height) were prepared by computer-aided design/c...

Hal ini bertujuan menganalisis pengaruh simultan dan parsial persepsi lingkungan sekolah motivasi belajar terhadap prestasi IPS siswa SMP Negeri di Jakarta Utara. Metode penelitian yang digunakan adalah survei dengan analisis korelasi regresi, menghubungkan data tentang menunjukkan IPS. Data variabel diperoleh melalui angket disusun oleh peneliti dalam mengukur hal berkaitan kedua atas. Sedangk...