Effect of acid-etching solution on surface properties, crystallography, and shear bond strength of ultra-translucent zirconia to enamel.

Ultra-translucent zirconia has gained popularity in restorative dentistry due to its excellent esthetic properties and high strength. Surface treatment methods play a crucial role in optimizing the bond between zirconia and enamel. This laboratory study aimed to investigate the influence of acid-etching solution on the surface properties of ultra-translucent zirconia and its subsequent shear bond strength to enamel.

Unravelling the Programmed Inflammation and Tissue Repair by a Multipotential Antimicrobial K21 Silane.

Aims And Objectives: To examine if a novel antimicrobial silane K21 can alter macrophage polarisation and affect fibroblast proliferation by deciphering the molecular pathways for programmed healing using a combined in vitro and in vivo (animal) burn model.

Materials And Methods: An injectable silane-based antimicrobial aimed to modulate macrophage polarisation was manufactured. Experimental analysis included colorimetric cell migration assays on gingival fibroblasts, macrophage phagocytosis characterisation, immunofluorescence staining, triacylglycerol accumulation within macrophages by LCMS, cellular metabolic/proliferation assays, macrophage exposure quantification with morphology assessment using FE-SEM, Raman spectral analysis, RNA isolation for relative gene expression and animal study model to morphometrically and microscopically analyse partial thickness burn wound healing under QAS/K21.

The prevalence of root canal treatment, periapical status, and coronal restorations in elderly patients in the Polish population.

Objectives: The aim of this retrospective cohort study was to determine the prevalence and correlations between root canal treatment, periapical status, and coronal restoration detected using cone beam computed tomography (CBCT) in the elderly Polish population (60-79 years).

Methods: A total of 480 CBCT images were assessed. Collected data included: age, gender, the tooth location, direct restoration, decay, single crown, abutment of fixed bridge, the quality of the restoration, root canal treatment, post and core, apical periodontitis (AP), and quality of root filling.

Effect of peroxide-free and peroxide-based in-office bleaching on the surface and mechanical properties of CAD/CAM esthetic restorative materials.

The study aimed to investigate the influence of HO-based and HO-free in-office bleaching on the surface and mechanical attributes of CAD/CAM composite blocks. CAD/CAM composite blocks from five different composite materials (CC1, CC2, CC3, CC4, and CC5) were randomly divided into two groups according to bleaching application (HO-based and HO-free). The surface topography, morphology, nanohardness, elastic modulus, flexural strength, and fracture toughness were measured.

Immediate effect of different herbal solutions on tensile strength of suture materials in oral cavity.

This pilot study evaluated the immediate effect of different herbal solutions in oral use on the tensile strength of the sutures used in oral surgical procedures. Three frequently used suture materials, polyglactin 910 (PGA), poliglecaprone (PGCL), and polypropylene (PP), were chosen in a 4-0-gauge size. The sutures' tensile stress was evaluated before being immersed (baseline) and after immersion at 24 h, 1 week, and 2 weeks in four different media: artificial saliva, chlorhexidine, Commiphora myrrh, and frankincense.