An investigation on fatigue, fracture resistance, and color properties of aesthetic CAD/CAM monolithic ceramics.

ABSTRACT:

Objectives

To evaluate and compare fracture resistance, translucency, and color reproducibility, as well as the effect of aging on the fracture load and color stability of novel monolithic CAD/CAM ceramics.

Materials and methods

One hundred crowns of uniform thickness were milled from five ceramic blocks (n = 20): partially crystallized lithium disilicate (PLD) and fully crystallized lithium disilicate (FLD), lithium metasilicate (LMS), 4Y-TZP (SMZ), and 5Y-TZP (UMZ) monolithic zirconia. PLD crowns were glazed, LMS was fired, and FLD was polished. SMZ and UMZ crowns were sintered and polished. Crowns were adhesively cemented to epoxy dies. Half of the crowns (n = 10) were subjected to 1.200.000 load cycles with thermal cycling. Color space values L, a, b defined by the Commi

SUBMITTER: Fouda AM 

PROVIDER: S-EPMC10264477 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature