Mechanical behavior and clinical application of nickel-titanium closed-coil springs under different stress levels and mechanical loading cycles

Apr 14, 2017 by in Orthodontics Comments Off on Mechanical behavior and clinical application of nickel-titanium closed-coil springs under different stress levels and mechanical loading cycles

Introduction The main advantage of superelastic nickel-titanium (NiTi) products is their unique characteristic of force plateaus, which allow for clinically precise control of the force. The aims of this study…

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Optimum conditions for parallel translation of maxillary anterior teeth under retraction force determined with the finite element method

Apr 14, 2017 by in Orthodontics Comments Off on Optimum conditions for parallel translation of maxillary anterior teeth under retraction force determined with the finite element method

Introduction In this study, we used the finite element method to examine the optimum conditions for parallel translation of the anterior teeth under a retraction force. Methods Finite element models…

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In-vitro study of cellular viability and nitric oxide production by J774 macrophages stimulated by interferon gamma with ceramic, polycarbonate, and polyoxymethylene brackets

Apr 14, 2017 by in Orthodontics Comments Off on In-vitro study of cellular viability and nitric oxide production by J774 macrophages stimulated by interferon gamma with ceramic, polycarbonate, and polyoxymethylene brackets

Introduction Ceramic brackets are chemically inert in the oral cavity, whereas polycarbonate and polyoxymethylene brackets can degrade and release bisphenol-A and formaldehyde, respectively. More reliable tests are needed to assess…

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