Three decades of research in the last century developed silicon nitride (Si3N4) as one strongest and toughest ceramic material for structural applications; but this century, we newly discovered its gifted surface biochemistry. In an aqueous environment, Si3N4 undergoes hydrolysis with slow continuous elution both nitrogen. A unique environment is created, which greatly enhances healing soft oss...

Aim. The purpose of this study was to evaluate our experience with treatment and outcome of 18 cases of fibrous dysplasia (FD) that were treated in our clinic. Materials and Methods. We present 18 cases of FD of craniomaxillofacial bones. 7 patients were affected by the polyostotic type of the disease, 2 by McCune Albright Syndrome (MAS) and 9 by the monostotic type. One patient with monostotic...

Background and Purpose Sphenoid bone fractures and sphenoid sinus fractures have a high morbidity due to its association with high-energy trauma. The purpose of this study is to describe individuals with traumatic injuries from different mechanisms and attempt to determine if there is any relationship between various isolated or combined fractures of facial skeleton and sphenoid bone and spheno...