Introduction: To present and assess a newly designed autoclavable, reusable tube shield for an endotracheal tube (ETT) during laser laryngeal surgery.   Materials and Methods: This study included patients scheduled for endolaryngeal laser surgery. A carbonated stainless-steel hemisphere shield (~1.5×0.6 mm) connected to a silk thread passing through a hole in its middle near upper edge was ...

This report presents an overview of the Diode Laser; its construction, function and application. Lasers in the form of laser diodes are in widespread use today. Diode lasers are used in a large number of industrial applications; the most prevalent use of the laser diode is probably in CD and DVD drives for computers and audio/video media systems. Diode lasers are also used in many other applica...

introduction: different modalities have been used to achieve better results in wound healing among which are laser and pharmacological agents. to our knowledge, there is no investigation to compare phenytoin and laser together. in this study, we aimed to evaluate laser and phenytoin efficacy and compare their effect on wound healing. methods: we used 60 rats. the animals were divided into 4 gro...

introduction: the aim of this study was to assess the caries-preventive potential of carbon dioxide (co2) laser application in conjunction with the use of titanium tetra fluoride solution on the enamel adjacent to bracket. methods: seventy-five freshly extracted bovine incisors were used. in order to attach the brackets, the area of examination was covered with adhesive tape to limit acid etchi...

We analyze the motion of an electron in the crossed electromagnetic field of the planar magnetron. Numerically we calculate the parameters of cycloid along which electron moves. We determine the total power of radiation of an electron moving in the magnetron and the power spectrum generated by a single electron and by the system of N electrons moving coherently in the electromagnetic field of p...