A retrospective study on the correlation between antibody levels and endothelial function in SLE patients: An analysis based on ultrasound and serum biomarkers.

Background: Systemic lupus erythematosus (SLE) was a complex autoimmune disease characterized by a spectrum of clinical and immunological manifestations, with cardiovascular disease (CVD) being a leading cause of morbidity and mortality. Endothelial dysfunction was critical in the pathogenesis of atherosclerosis and other cardiovascular complications in SLE. This study aimed to investigate the correlation between autoantibody levels and endothelial function in SLE patients using ultrasound and serum biomarkers.

[Effect of occlusal thickness design on the fracture resistance of endocrowns restored with lithium disilicate ceramic and zirconia].

Objective: This study aimed to investigate the effect of occlusal thickness design on fracture resistance of endocrowns restored with lithium disilicate ceramic and zirconia.

Methods: A total of 24 artificial first mandibular molars were randomly divided into four groups with six teeth in each group as follows: group lithium disilicate ceramic-2 mm (lithium disilicate ceramic, with an occlusal thickness of 2 mm and a retainer length of 4 mm); group lithium disilicate ceramic-4 mm (lithium disilicate ceramic, with an occlusal thickness of 4 mm and a retainer length of 2 mm); group zirconia-2 mm (zirconia, with an occlusal thickness of 2 mm and a retainer length of 4 mm); and group zirconia-4 mm (zirconia, with an occlusal thickness of 4 mm and a retainer length of 2 mm). After adhesive cementation (RelyX Ultimate Clicker), all specimens were subjected to thermocycling (10 000 cycles).