Within the limitations of this study, a range of translucency was identified in the veneered all-ceramic systems tested. Such variability may affect their ability to match natural teeth. The glazing cycle resulted in decreased opacity for all test materials except the completely opaque In-Ceram Zirconia and metal-ceramic specimens.
Within the limitations of this study, there was a range of ceramic core translucency at clinically relevant core thicknesses. In order of decreasing translucency, the ranges were Vitadur Alpha dentin (standard) > In-Ceram Spinell > Empress, Procera, Empress 2 > In-Ceram Alumina > In-Ceram Zirconia, 52 SF alloy.
This article considers the role of overseas academic travel in the development of the modern research university, with particular reference to the University of Cambridge from the 1880s to the 1950s. The Cambridge academic community, relatively sedentary at the beginning of this period, became progressively more mobile and globalised through the early twentieth century, facilitated by regular research sabbaticals. The culture of research travel diffused at varying rates, and with differing consequences, across the arts and humanities and the field, laboratory and theoretical sciences, re-shaping disciplinary identities and practices in the process.The nature of research travel also changed as the genteel scholarly excursion was replaced by the purposeful, output-orientated expedition.
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