BACKGROUND AND PURPOSE Cementless total hip arthroplasty is currently favored by many orthopedic surgeons. The design of the porous surface is critically important for long-term fixation. We examined the clinical and radiographic outcome of the cementless titanium hip implant with a bottom coating of apatite-wollastonite containing bioactive glass ceramic. METHODS We retrospectively reviewed ...

OBJECTIVES To examine potential correlations between streptococcal biofilm formation and lactate production in streptococcal biofilms formed on the surface of dental materials with different surface characteristics. MATERIALS AND METHODS Samples of a glass-ionomer cement (Ketac Molar) and a ceramic (Empress 2) were incubated with whole saliva and suspensions of Streptococcus mutans ATCC 25175...

The aim of this study was to synthesis of glass ionomer-silk fiber composite and to evaluate the effect of adding natural degummed silk fiber on the mechanical properties of glass ionomer cement (GIC). For this purpose, natural degummed silk fibers with 1 mm in length and 13-16 µm in diameter were added to the ceramic component of a commercial glass ionomer cement in 1, 3 and 5 wt. %. Compressi...

Ceramic and glass materials exhibit desirable properties for various applications. A glass-ceramic composite material could be utilized as an alternative to pure ceramic materials, with a reduced energy requirement processing recycling. In this work, customized photosensitive pastes containing zirconia particles were created processed by stereolithography. Complex 2- dimensional 3-dimensional H...

OBJECTIVE To evaluate the microshear bond strength (μSBS) of self-adhesive resin (SA) cement on leucite-reinforced glass-ceramic using silane or universal adhesive. MATERIALS AND METHODS Ceramic blocks were etched with 9.5% hydrofluoric acid and divided into three groups (n = 16): (1) negative control (NC) without treatment; (2) Single Bond Universal (SBU); (3) RelyX Ceramic Primer as positiv...

Nanofibrous glass/ceramic rigid shapes with uncommon structures, consisting of electrospun vitreous silica nanofibers coated 5–30 nm thick Al2O3 or MgAl2O4 ceramic layers, were fabricated in this study. Ceramic nanolayers restricted the viscous flow and provided strong structural bonding during partial sintering at 1200 °C. The interface interactions between nanofiber core nanolayer defined res...

The nanoscale microstructure and chemistry of a transparent gahnite glass-ceramic its precursor glass were investigated using atom probe tomography, transmission electron microscopy, nuclear magnetic resonance spectroscopy. In the annealed glass, statistically significant ZrO clustering was observed along with Si depletion within 2 nm clusters. This is expected to be first step in nucleation cr...

This paper reports the results of a study of the feasibility of recycling the solid residues from domiciliary waste incineration by producing a glass-ceramic. The major components of the raw material (TIRME F+L), which was from a Spanish domiciliary incinerator, were CaO, SiO2 and Al2O3 but nucleating agents, such as TiO2, P2O5, and Fe2O3 were also present in reasonable amounts. It was found th...

OBJECTIVES.: The aim was to investigate the adhesion of Streptococcus mutans (S. mutans) to a short glass fibers reinforced semi-IPN polymer matrix composite resin. The effect of surface roughness on adhesion was also studied. For comparison, different commercial restorative materials were also evaluated. MATERIALS AND METHODS.: Experimental composite FC resin was prepared by mixing 22.5 wt% of...