Optical properties of dental zirconia, bovine dentin, and enamel-dentin structures.

Objective: To evaluate the optical properties and the relative translucency parameter of Ceramill ZI White (3Y-TZP) and Ceramill Zolid FX White (5Y-PSZ) zirconia ceramic systems and compare them with those of the bovine dentin and enamel/dentin structures.

Materials And Methods: 3Y-TZP and 5Y-PSZ zirconia ceramic systems were evaluated. A 0.

Effect of Aging on Fracture Load and Reliability of Cemented Glass-Ceramics.

Purpose: To evaluate the influence of aging on the fracture load (Lf) and reliability of glass-ceramics after different etching protocols.

Materials And Methods: Specimens were fabricated and divided according to the etching Ame (10% hydrofluoric acid [HF] for 20 seconds, 40 seconds, and 60 seconds). Etched surfaces were examined under microscopy.

Analysis of Topography, Flexural Strength, and Microstructure of a Lithium Disilicate Glass- Ceramic after Surface Finishing.

Purpose: To investigate the influence of finishing, polishing, and glazing on the roughness, flexural strength, and microstructure of lithium disilicate glass-ceramics.

Materials And Methods: LD CAD/CAM blocks were cut into 96 discs (1.2 × 12 mm).