objective: evaluating the effect of resin coating and chlorhexidine on microleakage of two resin cements after water storage. materials and methods: standardized class v cavities were prepared on facial and lingual surfaces of one hundred twenty intact human molars with gingival margins placed 1 mm below the cemento-enamel junction. indirect composite inlays were fabricated and the specimens we...

By Alois K. Dexl, MD, MSc Within the past few decades, various surgical procedures for the treatment of presbyopia have been implemented in cataract and refractive surgery. Recently introduced into the market was the Kamra corneal inlay (AcuFocus, Inc., Irvine, California). This inlay has the Conformité Europpeéne (CE) Mark and is currently commercially available in the European Union and other...

The reconstruction of the trade routes along which garnets reached Europe in early Middle Ages demonstrates persistence long-distance after fall Western Roman Empire. Early medieval garnet jewellery from Italy and presence lapidary workshops are important evidence for understanding dynamics this commerce but systematically overlooked. Chemical trace-element analysis (LA-ICP-MS) loose inset glas...

FEBRUARY 2012 CAtARACt & REFRACtivE SURgERY todAY 39 A lthough much has been written on the topic, there is no universally accepted treatment for presbyopia. Therapies range from bifocal spectacles to scleral expansion to accommodating IOLs to corneal procedures such as presbyLASIK or conductive keratoplasty. An intrastromal approach is currently being investigated in FDA clinical studies for t...

We present a method to perform accurate measurements in the UHF (ultra high frequency) band on passive RFID (radio frequency identification) transponder chips. Our samples were extracted from commercially available RFID tag inlays. We determine the minimum operating power necessary to get a response from the transponder chip. Furthermore, we measure the chip input impedance in both, the reflect...