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Effect Of Different Supporting Die Materials And Crown Thicknesses On The Fracture Load Of Monolithic 3y-Tzp Zirconia And Lithium Disilicate Crowns, Akram Mohamed Mohamed Gad Sayed Ahmed

All ETDs from UAB

Background: Conventionally, the strength of dental materials used for fixed restorations is measured using specimens of simplified geometry (i.e bars or discs). There is value in measuring the strength of these materials in their anatomic geometry (i.e crowns) under clinically relevant loading conditions. One advantage of performing the so-called crown fracture test is that the material may benefit from its ability to be strengthened by its bond to a tooth-mimicking die. When performing a crown fracture test, the ideal die material is natural tooth structure. However, the variability in natural tooth anatomy and microstructure makes the use of a standardized, …