الفهرس 
AcknowledgmentOnly 14 pages are availabe for public view
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Abstract
A total No. of 30 copings, will be constructed using CAD/CAM & manually milled Zirconia technology according to the manufacturer instructions on specially designed stainless steel dies. These specimens are divided into 2 main equal groups (n = 15) according to method of construction. Each main group will be further subdivided into two three equal subgroups n=5 each according to the testing procedure that will be performed; 5 samples for marginal adaptation, 5 samples for internal fitness, 5 samples for fracture resistance.