Mandibular bone regeneration with autologous adipose-derived mesenchymal stem cells and coralline hydroxyapatite: experimental study in rats.

The purpose of this paper was to investigate the bone regeneration effect of autologous adipose tissue mesenchymal stem cells (ATMSC) in a small animal model. Twelve Wistar rats were given bilateral critical-size defects in the mandible. The defects were filled with coralline hydroxyapatite alone or combined with autologous undifferentiated ATMSC obtained from the dorsal fat pad.

Percutaneous tracheostomy in COVID patients. Experience in our hospital center after one year of pandemic and review of the literature.

Background: The pandemic caused by SARS-COV-2 has caused an increase in the need of tracheostomies in patients affected with respiratory distress syndrome. In this article we report our experience during a year of pandemic, we develop our surgical technique to perform percutaneous tracheostomy with the patient in apnea and we compare our results with those of other centers through a bibliographic review.

Material And Methods: A one-year retrospective clinical study was carried out on tracheotomies performed on patients admitted to the intensive care unit with severe SARS-CoV-2, with difficulty for ventilation or weaning.

Temporal headache and jaw claudication may be the key for the diagnosis of giant cell arteritis.

Background: Temporal artery biopsy (TAB) is a surgical procedure with a low positive yield. The purpose of this study is to determine which variables are the most important in the giant cell arteritis (GCA) diagnosis. The objective of this evaluation is to improve the percentage of positive temporal artery biopsy and if possible, avoid the biopsy in some cases.

Yu's Technique: An Optimal Local Flap for Lower Lip Reconstruction.

Purpose: The purpose of this study was to describe the authors' experience using the Yu flap, a rarely reported reconstructive technique that is an excellent method for lower lip reconstruction after sustaining large defects.

Materials And Methods: An observational retrospective study was designed to record all patients from 2010 through 2015 who had any lower lip disease that required wide resection and subsequent lip reconstruction using local flaps. The sample was supplied from the operating room database of the Department of Oral and Maxillofacial Surgery at Rio Hortega University Hospital (Valladolid, Spain).

Invasive maxillary sinus aspergillosis: A case report successfully treated with voriconazole and surgical debridement.

Introduction: Invasive aspergillosis of the paranasal sinuses is a rare disease and often misdiagnosed; however, its incidence has seen substancial growth over the past 2 decades. Definitive diagnosis of these lesions is based on histological examination and fungal culture.

Case Report: An 81-year-old woman with a history of pain in the left maxillary region is presented.