Traumatic injuries to the anterior teeth are a most common form of dental trauma that mainly affects children and adolescents. One of the options for managing tooth fracture when the tooth fragment is available and there is no or minimal violation of the biological width is the reattachment of the dental fragment. Reattachment of fractured tooth fragments can provide good and long-lasting esthe...

We used a sudden-expansion flow chamber to examine U-937 cell adhesion to unactivated and tumor necrosis factor (TNF)-α-activated human umbilical vein endothelial cells (HUVEC) in recirculating flow. For both unactivated and TNF-α-activated HUVEC, U-937 cells exhibited transient arrests within ∼150 μm of flow reattachment. Few arrests occurred directly at the reattachment site. U-937 cell rolli...

Introduction. To evaluate the impact of the eye lens status and oil side effects on the outcome of vitreoretinal surgery in retinal detachment with proliferative vitreoretinopathy (PVR) and a temporary silicone oil tamponade (SOT). Methods. 101 eyes were analyzed retrospectively and 103 eyes prospectively in regard to their retinal reattachment success rate and key factors for the outcome. Subg...

Crown fracture of maxillary anterior teeth is frequent dental injuries for which patients seek immediate dental treatment. Immediate reattachment of the intact fractured tooth segment is a therapeutic choice in such cases. This case report presents one of the best methods used for reattachment, which is an ultraconservative technique. It allows the restoration of original tooth contour, colour ...

PURPOSE To compare the anatomic and functional outcomes of pars plana vitrectomy (PPV) for treating rhegmatogenous retinal detachments (RRDs) between two groups with and without postoperative prone positioning. METHODS This retrospective cohort study included 142 eyes of 142 patients with a primary RRD. All patients underwent PPV with 20% sulfur hexafluoride gas tamponade and were divided int...

BACKGROUND Traumatic injuries caused to anterior teeth are most common. Emergency management of fractured fragments is necessary, for preserving their vitalities and for retaining aesthetics in an economical way. Various methods are available for restoring fractured, uncomplicated teeth, such as reattachment of fractured fragments, composite restoration. But only limited data is available on ev...

Two-dimensional calculations are performed for a Reynolds number of 1000 and an effective Prandtl number of unity to study the dynamics of large scale spanwise vortices with a passive scalar field in a separation and reattaching flow over a blunt plate. A triple decomposition technique is used to isolate the quasi-periodic fluctuations related to the large scale vortices shed from the separated...

The macula of the neural retina from 12 adult rhesus monkeys (Macaca mulatto) was detached from the overlying retinal pigment epithelium (RPE) by subretinal injection of a balanced salt solution. Seven days later, the two layers were reapposed by draining fluid from the vitreous cavity and replacing it with a 3:1 mixture of sulphur hexafluoride gas and air. Animals were sacrificed at 1 hr, 2 da...