objective: osseous defects around dental implants are often seen when implants are placed in areas with inadequate alveolar bone, or around failing implants. bone regeneration in these areas using bone grafts or its substitutes may improve dental implants prognosis. the aim of this study was to prepare and characterize the bioactive glass nanopowder and development of its coating for treatment ...

The article analyzes the time and content of customs clearance cargo vehicles by inspectors posts. study found that are forced to carry out procedures not provided for in Customs Code, but imposed other regulations, such as charging operation roads transit, fees tinted windows, or fines traffic violations. legislation establishes maximum crossing border transport, object control is clearly defi...

materials used in the body, especially the materials used in various oral cavity regions should be stable and passive without any interactions with the body tissues or fluids. dental amalgam, c omposite resins and dental cements are the materials of choice with such properties. the first attempts to produce active materials, which could interact with the human body tissues and fluids were promp...

In this paper synthesis and characterization of a bioactive calcium phosphate glass-ceramic is presented, synthesized using a facile method. The glass-ceramic samples are synthesized with heat treating the parent glass at appropriate temperatures, where different calcium phosphate crystalline phases are grown in the parent glass samples during the heat treatment. The amounts of elements a...

Anti-reflective (AR) coatings provide numerous visual benefits to spectacle wearers. However, coating designers and manufacturers seem to have placed little or no emphasis on reflectance of wavelengths outside the visible spectrum. Ultraviolet (UV) radiation from sources behind the wearer can reflect from the back lens surface toward the wearer's eye. Various clear lens materials, with and with...

The purpose of this study was to evaluate the efficacy of amblyopia therapy utilizing a pair of rotating polarized filters to attenuate the light reaching the non amblyopic eye, and thus reduce its acuity, while still enabling binocular vision. Six amblyopic children between the ages 1 and 6 years were enrolled in the study. They were fitted with glasses that included a pair of polarizing filte...