Five new species in the genus (Bacillariophyta) from European freshwater habitats.

Several populations belonging to the genus have been observed in European rivers that were previously identified as . In light of the recent taxonomic revisions of the genus , the morphology of the unknown populations has been critically investigated using light and scanning electron microscopy. Following the comparison with previously described species, five taxa could not be identified using the currently available literature on the genus.

Multi-modular bone healing assessment in a randomized controlled clinical trial of root-end surgery with the use of leukocyte- and platelet-rich fibrin and an occlusive membrane.

Objectives: The aim of this study was to assess in a multi-modular manner the bone healing 1 year post root-end surgery (RES) with leukocyte- and platelet-rich fibrin (LPRF) and Bio-Gide® (BG; Geistlich Pharma North America, Inc., Princeton, USA) as an occlusive membrane.

Materials And Methods: A randomized controlled clinical trial (RCT) of RES +/- LPRF and +/- BG was performed.