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Reconstruction of Atrophic Maxillary Ridges Using Mandibular Blocks With and Without Coverage Using Collagen Membrane

Is the use of collagen membrane on top of particulate bone mixture covered by onlay bone block in Maxilla better than the use of mixture of particulate bone covered by onlay bone block without the use of collagen membrane, in terms of bone quality and bone quantity?

Comparison of Two Pre-prosthetic Surgical Techniques for Augmentation of Mandibular Vertical Ridge Defects

The aim of this study is to compare two pre-prosthetic surgical techniques for augmentation of vertical mandibular ridge defects in preparation for implant placement, the first using customized ceramic membranes and the second using tenting titanium screws in conjunction with particulate bone graft and collagen membrane (modified sausage technique).

The Influence of a Perturbation Training on Balance Recovery of Old Adults: a Randomized Controlled Trial

Falls are major contributors for immobility and independency. Most falls in older adults occur during walking after a sudden unexpected loss of balance. It was well-established that balance can be improved by performance of a training program that provides perturbation (unexpected perturbations of balance). The main aim of the current …

Liver Transplant Combined With Neoadjuvant Chemo-radiotherapy in the Treatment of Unresectable Hilar Cholangiocarcinoma. A Prospective Multicenter Study.

A prospective multicentre pilot study which includes patients 70 years-old diagnosed of unresectable hilar cholangiocarcinoma (hCCA) 3cm in radial diameter, without evidence of lymph node or distant metastases. Liver transplantation preceded by neoadjuvant radio-chemotherapy will be performed in this selected group. The primary endpoint will be overall survival at 1, …