leucite

12/19/2022 - " This in vitro study was performed to evaluate fatigue survival by shear test in the union of leucite-reinforced feldspathic ceramic using different cement thicknesses. "
01/01/2020 - "Considering the long time spent in low frequency cyclic fatigue tests, this study aimed to evaluate the influence of loading frequency (2 Hz and 20 Hz) on the flexural fatigue strength (FFS) and on the time and number of cycles to failure of a leucite-reinforced glass-ceramic. "
05/01/2018 - "The purpose of this in vitro study was to investigate the failure behavior of a leucite-reinforced glass-ceramic under compression loading and fatigue in different simulated oral environment conditions. "
12/19/2022 - "The different cement thicknesses did not influence the leucite ceramic bonding in fatigue shear testing; however, the thicker cement layer increased the predominance of the ceramic material failure. "
01/01/2020 - "Therefore, in leucite-reinforced glass-ceramic fatigue strength tests, limited to a lifetime of 500,000 cycles, the use of loading frequencies up to 20 Hz did not influence the FFS estimations when compared to 2 Hz (chewing frequency estimative), and may be an alternative to accelerate data collection in this type of mechanical test. "

06/01/2013 - "The objective of this study is to investigate whether fine and nano-scale leucite glass-ceramics with minimal matrix microcracking are associated with a reduction in in vitro tooth wear. "
06/01/2013 - "Fine and nano-sized leucite glass-ceramics produced a reduction in in vitro tooth wear. "
02/01/2016 - "The Leucite group (2.670±1.471 mm(3)) showed the greatest amount of antagonist tooth wear, followed by in decreasing order by the Lithium (2.042±0.696 mm(3)), Zirconia (1.426±0.477 mm(3)), and Steel groups (0.397±0.192 mm(3)). "

01/01/2015 - "Endocrown with Leucite-Reinforced Ceramic: Case of Restoration of Endodontically Treated Teeth."
07/01/2012 - "The aim of this study was to analyze the survival rate and failure mode of IPS leucite-reinforced ceramic onlays and partial veneer crowns regarding thickness under the following clinical conditions: vital versus nonvital teeth, tooth location, and type of opposing dentition. "

12/01/2007 - "In a cross-sectional and in a 10-day experimental gingivitis study, Quigley-Hein plaque index, gingival index (GI), crevicular fluid and its levels of interleukin (IL)-1alpha, -1beta and receptor antagonist were measured at appoximal surfaces of leucite-reinforced bonded ceramic coverages, resin composite restorations and enamel and compared intra-individually in 17 participants. "

07/01/2023 - "Post-fatigue fracture load, stress concentration and mechanical properties of feldspathic, leucite- and lithium disilicate-reinforced glass ceramics."
01/01/1994 - "As a consequence of our investigations we propose a differentiation into three classes of toughness: class I (fracture toughness up to 2.0 MPa*m1/2, fracture stress up to 100 MPa) consists of the leucite, mica or whisker strengthened ceramics Cerec, Dicor, Duceram, IPS-Empress, Flexo-Ceram, LFC, Mirage (I, II), Optec HSP and Vitadur Alpha, N. "