Biomechanical consideration in tooth-supported glass-ceramic restorations: A systematic review and meta-analysis of survival rates and irreparable failures.

Statement Of Problem: Knowledge on the biomechanical behavior of glass-ceramics, their survival rate over time, and their potential failures is essential for decision-making in clinical practice. Systematic reviews and meta-analysis of their survival rates and irreparable failures are lacking.

Purpose: The purpose of this systematic review and meta-analysis was to evaluate the survival rates and irreparable failures of various monolithic glass-ceramic dental restorations to help determine biomechanical indications.

Determination of chemical species of fluoride during uptake mechanism of glass-ionomer cements with NMR spectroscopy.

Objective: The aim of the present study was to determine the chemical species formed inside glass-ionomer cements after fluoride uptake and to investigate the depth of penetration of fluoride ions within the cement matrix.

Methods: An experimental fluoride-free glass with composition 2SiO-AlO-CaO was produced. The glass powder was mixed with aqueous poly(acrylic acid) (PAA), and allowed to set.

Wettability and pre-osteoblastic behavior evaluations of a dense bovine hydroxyapatite ceramics.

In this study, the wettability, cell viability, and roughness of an experimental dense bovine hydroxyapatite [Ca(PO)(OH)] ceramic block were evaluated so that, in the future, it could be used as a base material for dental implants. The results to commercial zirconia and a commercially pure titanium (Ti) alloy were compared. The surface roughness and contact angles were measured.

Flexural strength of minimum thickness ceramic veneers manufactured with different techniques.

Objective: The objective of the present study was to assess the effect of monolithic and bilayer restorations considering heat-pressed and milled/CAD/CAM reinforced lithium disilicate ceramic veneers, on the flexural strength after cementation.

Method And Materials: Thirty-five specimens were divided into five groups (n = 7), according to the restorative solution: 2-mm thickness composite resin (CR2); heat-pressed monolithic ceramic 0.6 mm (HPM), CAD/CAM monolithic ceramics 0.

Influence of external energy sources on the dynamic setting process of glass-ionomer cements.

Objective: To evaluate the influence of external energy sources on the dynamic setting process of glass-ionomer restorative materials.

Methods: Eighteen brands of GIC were studied: Bioglass R (Biodinâmica; G1), Chemfil Rock (Dentsply; G2), Equia Forte (GC; G3), Gold Label 2 (GC; G4), Gold Label 9 (GC; G5), Glass Ionomer Cement Type II - (Shofu; G6), Ionglass R (Maquira; G7), Ion Z (FGM; G8), Ionomaster (Wilcos; G9), Ionofil Plus (Voco; G10), Ionostar Plus (Voco; G11), Ketac Molar easymix (3M ESPE; G12), Magic Glass R (Vigodent; G13), Maxxion R (FGM; G14), Riva Self Cure (SDI; G15), Vidrion R (SS White; G16), Vitro Fil R (Nova DFL; G17) and Vitro Molar (Nova DFL; G18). LED, halogen light or ultrasound (n=20 for each set) applied for 30s was used to activate setting, and a control group of each material was allowed to set without activation.

Positive correlation between fluoride release and acid erosion of restorative glass-ionomer cements.

Objective: The aim of this study was to determine whether there is a correlation between acid erosion and fluoride release of conventional glass ionomer cements.

Methods: Ten specimens for each material were prepared for fluoride release tests and five for acid erosion tests separately. After placed in pH cycling solution, concentration of fluoride was measured by a fluoride-ion selective electrode each day for 15 days.

Titanium dioxide nanotubes addition to self-adhesive resin cement: Effect on physical and biological properties.

Objectives: This study has investigated the influence of Titanium dioxide nanotubes (TiO-nt) addition to self-adhesive resin cement on the degree of conversion, water sorption, and water solubility, mechanical and biological properties.

Methods: A commercially available auto-adhesive resin cement (RelyX U200™, 3M ESPE) was reinforced with varying amounts of nanotubes (0.3, 0.

The shear bond strength of self-adhesive resin cements to dentin and enamel: an in vitro study.

Statement Of Problem: Clinicians continue to search for ways to simplify bonding procedures without compromising clinical efficacy.

Purpose: The purpose of this study was to evaluate the shear strength of self-adhesive cements RelyX U100 and RelyX U200, and conventional resin cement RelyX ARC to enamel and dentin after different surface treatments.

Material And Methods: The crowns of 120 bovine incisor teeth were separated from the roots and embedded in epoxy resin in polyvinyl chloride tubes.