Background and aims. A combination of guided tissue regeneration (GTR), bovine porous bone mineral (BPBM), and platelet rich plasma has been already applied for the regeneration of intrabony defects. The aim of this study was to determine the role of plasma rich in growth factor (PRGF) alone in the periodontal regeneration of intrabony defects in humans as compared with BPBM/GTR Technique. Mate...

The management of end-of-life tires (ELTs) is one the main environmental issues that society faces nowadays. Recycling ELTs appears as feasible option for tackling problem, although their incorporation ground tire rubber (GTR) in other matrices limited due to poor compatibility. In this research, we report a successful combination cryo-grinding process with chemical treatment modifying surface ...

Guided tissue regeneration (GTR) is effective in halting tissue and bone destruction and promoting new tissue and bone formation. Although the goal of complete and predictable regeneration still remains elusive, many techniques and materials have been developed that show good clinical and histologic outcomes. The most commonly used materials in GTR include bone replacement grafts from numerous ...

The activities of erythrocyte phosphoribosyl pyrophosphate (PRPP) synthetase and glutathione reductase (GTR) were studied in 26 patients with primary gout who were receiving no treatment or treatment with either allopurinol or azapropazone, and compared with the activity in a group of healthy controls. The activity of PRPP synthetase was significantly higher in the gout group and was not influe...

Periodontal plastic surgical techniques have evolved to meet the demands of today's dental patient. Free gingival grafts (FGGs), pedicle flaps, subepithelial connective tissue grafts (SCTGs), acellular dermal matrix (ADM) grafts, and guided tissue regeneration (GTR) have all been used to cover denuded root surfaces. FGGs have demonstrated inconsistent results. Pedicle flaps have provided consis...

We examined recurrence after gross total resection (GTR) or subtotal (STR) at St. Michael’s Hospital, Toronto, of 181 cases atypical meningioma (WHO grade II). In the entire group, Kaplan-Meier survival curves showed that combined necrosis and brain invasion was feature associated with worst outcome, followed in order by necrosis, histological variants (clear cell, rhabdoid, chordoid), high mit...

This study investigates the addition of ground tire rubber (GTR) into virgin polyamide 6 (PA6) to produce thermoplastic elastomer (TPE) blends. In particular, a wide range GTR concentration (0–100% wt.) was possible by using simple dry blending technique materials in powder form followed compression molding. The molded samples were characterized terms morphological (scanning electron microscopy...

Ectopic recurrence of craniopharyngioma is extremely rare. Two mechanisms have been proposed to explain this phenomenon: direct implantation along the previous surgical tract and dissemination via cerebrospinal fluid (CSF). We present a case of ectopic recurrence along the surgical route after transcranial gross total resection (GTR) of primary tumor. Cystic tumor seems to be a risk factor of e...