الفهرس 
Title : Evaluation of patient satisfaction and shade matching of vita suprinity versus lithium disilicate (E-max) ceramic crowns in esthetic zone : Randomized controlled clinical trial
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Abstract
Nowadays, the increasing esthetic expectations in daily life directly affect the materials, techniques and treatment procedures in dentistry. In order to achieve an esthetic successful restoration with perfect shade matching and patient satisfaction. This clinical study was performed in order to evaluate patient satisfaction and shade matching of VITA SUPRINITY versus lithium disilicate (e-max) all ceramic crowns in esthetic zone.Twenty-six all-ceramic full coverage restorations (thirteen in each group) were fabricated for teeth requiring full coverage restorations in esthetic zone.The patients were divided into two groups according to the type of ceramic used. group 1 (control group) IPS e.max CAD ceramic crowns. group 2 (intervention group) VITA SUPRINITY ceramic crowns.The color of the tooth was recorded visually using VITA 3D-master shade guide system in accordance to the contralateral/ adjacent tooth under different light conditions: natural day light, incandescent light and color corrected light to avoid metamerism with the help of three prosthodontists that performed Ishihara’s test to determine color deficiency. Shade was also confirmed with Vita Easyshade V spectrophotometer.The shade of the prepared abutment tooth was recorded visually using the IPS Natural Die Material shade guide. In order to fabricate a die mimicking the oral situation for optimum desired final esthetic results