This review studied the mechanical behaviors of Glass ceramics (GC) based on Al2O3 /SiO2 system. are great interest due to their wide variety applications, which have ability fulfil recent demands advanced mechanical, optical and biomedical applications. Glass-ceramics typically heat-stable greater features than glasses. In addition, properties can be customized provide variable volume fraction...

A new composite of poly(methyl methacrylate) – co -(ethyl-hexyl-acrylate) filled with glass of composition (wt.%) 61,33% 3CaO.P2O5 23,03% SiO2 – 15,64% MgO was developed. The formation of CaP (calcium phosphate) layers on implants is crucial for their integration in bone. Simulated biological fluids to study in vitro formation of those layers do not usually contain important organic substances,...

A macroporous phosphate invert glass-ceramic (PIGC) was derived from the mother glass with a composition of 60CaO-30P2O5-3TiO27Na2O in mol%. The mother glass powders were coated on a polymer sponge skeleton and subsequently sintered at 850 C for 1 h through burning off the sponge, resulting in the preparation of macroporous PIGC. The resulting macroporous PIGC consists predominantly of tricalci...

Craniofacial reconstructive surgery requires a bioactive bone implant capable to provide a gradual resorbability and to adjust to the kinetics of new bone formation during healing. Biomaterials made of calcium phosphate or bioactive glasses are currently available, mainly as bone defect fillers, but it is still required a versatile processing technique to fabricate composition-gradient bioceram...

Bioglass 45S5 is a bioactive glass that can create a layer of calcium-phosphate crystals on mineralized hard tissues. In this study, 45S5 bioglass was mixed with phosphoric acid and irradiated with CO2 laser and examined as a possible aid in the treatment of dentin hypersensitivity. The dentinal surface modified by the aforementioned technique was chemically and micro-morphologically examined w...

Calcium phosphate ceramic scaffolds have been widely investigated for bone tissue engineering due to their excellent biocompatibility and biodegradation. Unfortunately, they have the shortcoming of low mechanical properties. In order to provide strong, bioactive, and biodegradable scaffolds, a new approach of infiltrating the macro-tube ABS (acrylontrile butadiene styrene) templates with a hydr...

INTRODUCTION This in vitro study measured and compared pH and phosphate and calcium ions release of a new endodontic material (CEM cement), mineral trioxide aggregate (MTA), and Portland cement (PC) using UV-visible technique, atomic absorption spectrophotometry methods, and pH meter, respectively. MATERIALS AND METHODS Each material was placed in a plastic tube (n=10) and immersed in a glass...

introduction: glass-ionomer cements (gics) are one of the most important dental restorative biomaterials. the aim of this study was to synthesize glass-ionomer‒silk fiber composite and evaluate the effect of adding natural degummed silk fiber on the bioactivity and the ability to release fluoride by glass-ionomer cement. materials and methods: in this study, commercial fuji ii glass-ionomer cem...

The R&D of ceramic biomaterials has extensively progressed in Japan since commercial production of calcium phosphates of hydroxyapatite and β-tricalcium phosphate, A-W glass, chemicalsand SBF (simulated body fluid)-treated metals, and yttria-stabilized zirconia for dental and medical applications. The centers of R&D excellence in Japan consist of universities and national research institutes in...

Abstract Although the initial in vitro dissolution of bioactive glasses (BAG) is well characterized, long-term behaviour crystallized BAG scaffolds a continuous fluid flow incompletely understood. A detailed understanding vital for predicting their clinical applications. Here, we explored and reaction mechanisms partly crystalline glass–ceramic based on S53P4 45S5 using flow-through method Tris...