1,721,001 research outputs found

    GIANFREDA F, MANZONE F, TROIANO D (2015). Panel for Building: a new tipology of platform frame. TEMA, vol. 1,, p. 184-189, ISSN: 2421-4574

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    This paper describes the feasibility and engineering test made on the construction system patented with the name "Panel for Building". This panel is made of vertical and horizontal profiles in thin pre-formed sheet and two stiffening plasterboard slabs located on opposite sides of the structure. Panel for Building represents an innovation in platform frame structures, because it uses cheap and easily found components. Forth more the use of plasterboard slabs reduces the layers of the wall and improves overall performance. This system allows to construct high performance buildings by optimizing construction time

    Dental Materials Design and Innovative Treatment Approach

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    in recent years, technological innovation has had exponential growth, resulting in positive implications in dentistry [...]

    Autogenous Dentin Particulate Graft for Alveolar Ridge Augmentation with and without Use of Collagen Membrane: Preliminary Histological Analysis on Humans

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    (1) Background: The phenomenon of ankylosis of the dental elements has led clinicians to think that properly treated dentin and cement may be a potential graft for alveolar ridge augmen-tation. Currently, there are no studies in the literature able to histomorphometrically compare the healing patterns of an autogenous dentin particulate graft with the association, or not, of resorbable membranes. The aim of this pilot study is to histologically compare bone after an alveolar ridge augmentation using an autogenous dentin particulate graft with and without a resorbable collagen membrane. (2) Methods: this clinical trial enrolled six patients with defects requiring bone augmen-tation. Two procedures were performed in all six adult human patients in order to perform a study– control study: in Group 1, a ridge augmentation procedure with an autogenous dentin particulate graft and a resorbable collagen membrane was performed, and, in Group 2, an alveolar ridge preservation without a membrane was performed at the same time (T0). At 4 months, a biopsy of the bone tissues was performed using a 4 mm trephine bur in order to perform a histomorphometric analysis. (3) Results: The histomorphometric analysis demonstrated that Group 1 presented 45% of bone vol-ume, 38% of vital bone, and 7% of residual graft. On the contrary, membrane-free regenerative procedures demonstrated 37% of bone volume, 9% of vital bone, and 27% of non-resorbed graft. In all cases, the regenerated bone allowed the insertion of implants with a standard platform, and no early failures were recorded. (4) Conclusions: Autogenous dentin particulate grafts seem to work best when paired with a membrane

    Procedures and Methodologies to Assembly and Mounting the constructive system called “Panel for Building”

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    The paper describes the progress of the research that was introduced in a previous article titled “Panel for Building: a new typology of platform frame”. In this phase of the research, the goal is to define the best technological solution for the assembly of the individual layers of the panel, concentrating in particular on the structural section. In parallel with the previous objective, the research analyzes the construction of Panel for Building on site, with reference to the foundation node and the connections between the panels

    SOLUZIONI TECNOLOGICHE DI ASSEMBLAGGIO E MONTAGGIO DEL SISTEMA INNOVATIVO PANNELLO PER L'EDILIZIA TECHNOLOGICAL SOLUTIONS FOR ASSEMBLY AND MOUNTING OF INNOVATIVE PANEL FOR BUILDING

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    The article describes the developments in research on building system with load-bearing panels called "Panel for Building". At this phase, the focus of research is the definition of the best technological solution for the assembly of the individual layers of the panel, with particular reference to the structural section. A further objective is the identification of panels mounting system on the construction site, with reference to the foundation node and the connections between the panels. The analyzes focused on the definition of the connection of the bracing sheet system with the steel frame to form a load-bearing wall. Also links between the different panels were examined using different construction technologies. The goal of this analysis is to establish an automated and standardized panel assembly system made in factory, in order to reduce the number of connections at the construction site, for easier and quicker the mounting operations. This considerations allow to build highly efficient buildings in less time

    The hemostatic properties of chitosan in oral surgery

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    Chitosan (CS) belongs to the natural linear aminopolysaccharide family. It is formed by a repetition of D-glucosamine units (deacetylated units) and a smaller number of N-Acetyl-D-glucosamine units. Their distribution is casual. It derives from chitin which is a naturally occurring polysaccharide in the arthropod exoskeleton. CS is a biocompatible material and for this reason it is used in medicine, especially in dentistry. It also has anti-inflammatory and regenerative properties. It is used in conservative dentistry, periodontology, especially in oral surgery. Its antibacterial and hemostatic properties are useful in the surgical treatment of patients on anticoagulant/antiplatelet therapy. The purpose of this work is to analyze through a systematic review of the literature on the use of CS as a local hemostatic
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