In the 1960s, Winter (1962) identified that moisture was required to provide an optimum environment for reepithelialisation (and hence healing) to occur. Since then, further research has added to our knowledge and now the broad criteria for an ideal wound dressing includes: Provision of a moist environment Protection from the external environment (including the prevention of ingress of foreign ...

UNLABELLED Introduction. This small pilot study introduces initial clinical experience with a system combining negative pressure wound therapy and negative pressure wound therapy with instillation (NPWT/NPWTi, V.A.C. ULTA™ Negative Pressure Wound Therapy, KCI USA, Inc, San Antonio, TX). MATERIALS AND METHODS The NPWT system with instillation delivers controlled volumetric fluid instilla...

This paper describes a mathematical model for a novel rotary pneumatic rotary actuator with potential applications in revolute direct robotic mechanisms. The analytical model describes the behaviour of the rotary pneumatic actuator and simulated results using this model are generated. Potential applications of this model are discussed in the context of soft model based controllers used in prost...

The skin is susceptible to different injuries and diseases. One major obstacle in skin tissue engineering is how to develop functional three-dimensional (3D) substitute for damaged skin. Previous studies have proved a 3D dynamic simulated microgravity (SMG) culture system as a "stimulatory" environment for the proliferation and differentiation of stem cells. Here, we employed the NASA-approved ...

INTRODUCTION The aim of this study was to assess the extent of adoption, application and the associated issues with the nickel-titanium (NiTi) rotary instruments and techniques amongst endodontists and general dentists in Tehran. MATERIALS AND METHODS A total of 33 questions classified in six categories of demographics, frequency rate of NiTi rotary instrumentation and information. The sample...

Watches bene�t from a long design history. Designers and engineers have successfully built devices using rotary physical inputs such as crowns, bezels, and wheels, separately or combined. Smart watch designers have explored the use of some of these inputs for interactions. However, a systematic exploration of their combinations has yet to be done. We investigate the design space of interactions...

The use of an ultrasonic apical preparation technique has been advocated recently. Root-end preparations in 30 extracted single-canaled human teeth were evaluated, comparing those prepared with ultrasonic instrumentation alone, or in combination with rotary bur preparation, to those prepared with rotary instrumentation alone. Specimens were evaluated for the presence of debris, smear layer, and...