It has been reported that bond strength of resin to tooth structure can be reduced when the bonding procedure is carried out immediately after the bleaching treatment. This study evaluated the effect of bleaching of non-vital teeth bleaching on the shear bond strength (SBS) of composite resin/bovine dentin interface and the influence of delaying the bonding procedures for different time interva...

A novel migratory dynamic kinetic resolution based on the interplay between an enzyme acylation catalyst and a heterogeneous Brønsted acid as an isomerization/racemization catalyst gives rise to carbocyclic allylic esters with excellent stereoselectivity from readily available tertiary carbinols. An easy-to-use teabag setup combining resin-bound catalysts, a biphasic isooctane-water solvent sys...

MATERIALS Reagents Dithiothreitol (DTT), 1 M DNA IQ System (Promega; includes Resin, Lysis Buffer, 2X Wash Buffer, and Elution Buffer) Ethanol, 95-100% Isopropanol Sample (liquid blood, cotton swab, th CEP swab, 15-50 mm2 S&S paper, 3-30 mm2 FTA paper) Equipment Aerosol-resistant micropipette tips DNA IQ Spin Baskets (Promega) Heating blocks, preset to 65°C and 95oC MagneSphere Technology Magne...

Methods: This descriptive cross-sectional study evaluated the anatomical characteristics of the cerebellar arteries and their branches in 93 brain stem and cerebellum blocks obtained from fresh cadavers. The specimens were perfused bilaterally channeling the proximal segments of the internal carotid and vertebral arteries with a semi-synthetic resin (Palatal GP40L 85%; styrene 15%) impregnated ...

The resin blocks are mounted on a motorized microtome. The microtome has to be modified to allow the block holder to reproducibly come to rest at a "photoposition" after each cut. E.g., the apparatus we operate in Vienna has its photoposition at the upper stopping point of the block holder excursion of a rotary microtome (Microtec CUT 4060E, microTec Laborgeräte GmbH). It is reproducibly reache...

BACKGROUND Establishing glomerular basement membrane (GBM) thickness is important in the diagnosis of some renal diseases. It is widely believed that GBM thickness varies according to the processing method, yet there appear to be no published data to support this. In this study we aimed to determine whether the choice of intermediate solvent and embedding resin influenced the thickness of the G...

PURPOSE To evaluate the adhesion to CAD/CAM feldspathic blocks by failure analysis and shear bond strength test (SBSt) of different restorative systems and different surface treatments, for purpose of moderate chipping repair. MATERIALS AND METHODS A self-adhering flowable composite (Vertise Flow, Kerr) containing bi-functional phosphate monomers and a conventional flowable resin composite (P...