TY - JOUR
AU - Sjögren, G.
AB - summary The fracture strengths of stylized all‐ceramic crowns manufactured using an yttrium‐oxide‐partially‐stabilized (Y‐TZP) zirconia ceramic core (Denzir) veneered with lithium disilicate glass‐ceramics (IPS Empress 2 or IPS Eris) were evaluated. The Denzir cores were manufactured in two ways: either with different thickness in different parts of the restoration, called an ‘adapted Denzir core’; or with a uniform core thickness of 0·5 mm. IPS Empress 2 all‐ceramic crowns served as reference. There was no significant difference between the crowns with an ‘adapted Denzir core’ veneered with the two brands of glass‐ceramics. No significant difference was seen between the crowns with a 0·5 mm Denzir core veneered with the two brands of glass‐ceramics. The crowns with an ‘adapted Denzir core’ exhibited significantly higher values than those with a 0·5 mm Denzir core and than the IPS Empress 2 crowns used as reference. No significant differences were seen among the IPS Empress 2 crowns used as reference and the crowns with a 0·5 mm Denzir core. The mode of failure varied among the Empress 2 crowns and the crowns with a core of a Y‐TZP zirconia ceramic. Long‐term studies are necessary to assess the clinical performance of this restorative system.
TI - A comparison of fracture strength of yttrium‐oxide‐ partially‐stabilized zirconia ceramic crowns with varying core thickness, shapes and veneer ceramics
JF - Journal of Oral Rehabilitation
DO - 10.1111/j.1365-2842.2004.01284.x
DA - 2004-07-01
UR - https://www.deepdyve.com/lp/wiley/a-comparison-of-fracture-strength-of-yttrium-oxide-partially-1SwCupkBOv
SP - 682
VL - 31
IS - 7
DP - DeepDyve
ER -