نتایج جستجو برای: led dental curing lights

تعداد نتایج: 385979  

Objective(s): A Box-Behnken design was used for evaluation of Eudragit coated diclofenac pellets. The purpose of this work was to optimize diclofenac pellets to improve the physicochemical properties using experimental design. Materials and Methods: Diclofenac was loaded onto the non-pareil beads using conventional coating pan. Film coating of pellets was done at the same pan. The effect of pla...

Journal: :Dental materials journal 2008
Ihsan Hubbezoglu Arife Dogan Orhan Murat Dogan Giray Bolayir Bulent Bek

The influence of three curing modes of a high-powered LED curing unit on temperature rise under 2-mm-thick dentin was investigated during the polymerization of resin composite samples of Admira, Filtek P60, Premise, Tetric Flow, Tetric Ceram, and Filtek Z250. Ninety standard specimens were prepared. The bonding agents and resin composites were cured with standard, pulse, or soft-start mode (n=5...

ژورنال: مجله دندانپزشکی 2007
حسنی ‌طباطبائی, معصومه, عطایی, محمد, متوسلیان, فریبا, میرزایی, منصوره,

Background and Aim: Halogen lamp is the commonly used light source for composite photo polymerization. Recently, high power halogen lamps, LED and plasma arc are introduced for improving the polymerization. The aim of this study was to investigate the effect of conventional and high power halogen lamps and LED light curing unit on degree of conversion of two different composite resins.Materials...

2007
Miriam Estévez Susana Vargas Victor M. Castaño J. Rogelio Rodríguez Haley E. Hagg Lobland Witold Brostow

Preparation of new polymer (polyurethane)+ceramic nanohybrids for filling dental cavities is reported. Short curing times (below 10 min) are achieved. Some tribological properties are determined and compared with those of commercial dental materials. The new materials provide scratch resistance as well as good adhesion to dentin and enamel, low toxicity and high chemical resistance; additionall...

Journal: :Behavior research methods 2014
Kevin M Gildea Nelda Milburn

The capabilities of open-source software and microcontrollers were used to construct a device for controlled lighting experiments. The device was designed to ascertain whether individuals with certain color vision deficiencies were able to discriminate between the red and white lights in fielded systems on the basis of luminous intensity. The device provided the ability to control the timing an...

2015
Hongen Liao

Three-dimensional (3D) display technology has continuously been attracting public attention with the progress in today's 3D television and mature display technologies. The primary characteristics of conventional glasses-free autostereoscopic displays, such as spatial resolution, image depths, and viewing angle, are often limited due to the use of optical lenses or optical gratings. We present a...

Journal: :IEEE Access 2021

Rear-end collision accounts for around 8% of all vehicle crashes in the UK, with failure to notice or react a brake light signal being major contributory cause. Meanwhile traditional incandescent bulbs on vehicles are increasingly replaced by profusion designs featuring LEDs. In this paper, we investigate efficacy design using novel approach recording subject reaction times simulation setting p...

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