statement of the problem: increasing the thickness of the veneering porcelain may affect the polymerization of resin cements. incomplete polymerization of resin cements can lead to compromised quality of restoration and decrease the longevity of indirect restorations. purpose: this study sought to assess the effect of ips empress porcelain thickness on the degree of conversion of light-cure and...

Background and aim: Studies as to the evaluation of clinically relevant color assessment of full ceramic restorations supported by esthetic post and core materials has not been found in the related literature. Thus, this study is conducted to evaluate the color difference of Empress 2 ceramic crowns restored with 4 different esthetic post systems and two different core materials by using colori...

Thomas Dekker’s religious, political, and anti-catholic imbroglio, The Whore of Babylon (1605–6),2 written on the heels of the Powder Treason of 5 November 1605, teems with images of contagious disease, pollution, and porousness. Dekker maps these images onto the body of the Empress of Babylon,3 the whore of the play’s title, a ‘freckled face queane’, ‘speckled toade’, and ‘villanous drab’, who...

OBJECTIVES The aim of this in-vitro study was to assess the long-term effects of hydrochloric acid on the surface roughness of three all-ceramic restorative materials CEREC VITABLOC Mark II CAD, IPS Empress CAD and IPS e.max CAD. MATERIALS AND METHODS Six cylindrical specimens (10mm diameter, 3mm height) of each material type were prepared, using the CEREC CAD/CAM machine. The unpolished samp...

This paper is intended to analyze the interrelation, mutual influence and integration of phoenix tree, empress in ecological cultural terms. The study indicates historical-cultural symbolical meaning Empress Wu value. incarnation dragon, rebirth Maitreya Buddha with godship. From aspect theology, stays at tree that a myth by means tree; dragon keep abreast, represents outstanding woman, (super ...

INTRODUCTION Esthetic post and core systems were recently introduced. There are few reports regarding their behavior under cyclic loading. OBJECTIVES This study compared the effect of cyclic loading on survival rate, residual strength and mode of fracture of endodontically treated teeth restored with esthetic and direct metallic post systems subjected to mechanical cyclic loading. MATERIALS...