Bioactive glass-ceramic nanoparticles (nBGC) may be produced using sol-gel methodologies. These nanobiomaterials may be used in a series of biomedical applications, such as tissue engineering of mineralised tissues. The preparation of nBGC and their properties are resumed. Example os applicability of nBGC in the orthopaedic field are presented, including in the preparation of scaffolds based on...

A Novel Bioactive Glass-Enhanced Orthodontic Bonding Resin: A shear bond strength study By Cole R. Johnson, D.D.S. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Dentistry at Virginia Commonwealth University. Virginia Commonwealth University, 2011 Thesis Director: Eser Tüfekçi, D.D.S, M.S., Ph.D Associate Professor, Department of Orthodontic...

Background and Aim: This study aimed to compare the sorption and solubility properties of ACTIVA BioACTIVE liner and resin modified glass ionomer (RMGI).   Materials and Methods: In this in vitro study, a total of 30 samples were fabricated from each liner measuring 15 mm in diameter and 1 mm in thickness according to ISO 2009:4049. They were then divided into 6 subgroups (n=5) to assess th...

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 ...

The periodontium is a complex tissue consisting of soft and mineralized structures. Several diseases affect the integrity of periodontium causing the destruction of the connective tissue and cells. In recent decades bioactive glass has been used in several studies in the dental field because of its excellent regenerative properties. It is known that the effect of bioactive glass can be enhanced...

The potential use as a bone substitute material of a three-dimensional bioactive glass fiber scaffold composed of Na(2)O-K(2)O-MgO-CaO-B(2)O(3)-P(2)O(5)-SiO(2) (BG1) was investigated in this work. Scaffolds were pre-treated with simulated body fluid (SBF) to promote the formation of two different bone-like apatite layers on their surfaces. The topography and roughness of the deposited layers we...

OBJECTIVES The purpose of this study was to evaluate the changes in dentinal permeability (i.e. hydraulic conductance) after prophylactic treatment performed using prophy-powders with air-polishing system or prophy-pastes applied on exposed middle dentine. The changes in dentine morphology were evaluate by SEM. STUDY DESIGN Several prophylactic pastes or air-polishing powders were tested in t...

PURPOSE To compare histometrically, in rats, the bone healing after grafting the incisor extraction sockets with inorganic bovine bone or bioactive glass particles. MATERIAL The volume fraction of grafted materials and alveolar healing components was estimated in histologic images at the end of the second and ninth weeks postoperatively by a differential point-counting method. RESULTS Both ...

Tissue engineering has evolved from the use of biomaterials for bone substitution that fulfill the clinical demands of biocompatibility, biodegradability, non-immunogeneity, structural strength and porosity. Porous scaffolds have been developed in many forms and materials, but few reached the need of adequate physical, biological and mechanical properties. In the present paper we report the pre...

A surprising electrochemiluminescence (ECL) enhancement effect in graded-gap CdSeTe@ZnS-SiO2 quantum dot (QD) bilayers was observed and used to create an ultrasensitive immunoassay. CdSeTe@ZnS-SiO2 QDs of two different sizes were used as a donor-acceptor pair, owing to their tunable energy and low biotoxicity. The graded-gap CdSeTe@ZnS-SiO2 QD bilayers were fabricated by layer-by-layer assembly...