introduction: there are several methods for evaluating microleakage in dentistry, for example dye or bacterial leakage, electro-chemical methods, radioisotope labeling and fluid filtration. the purpose of this study was to assemble the fluid filtration system for quantitative evaluation of microleakage in dental materials. materials and methods: the roots were connected to a tube filled with an...

One of the new clinical techniques to assess the lower body parameters is the wearable ultrasonic sensors. The device which can measure the static and dynamic balance abilities in sport and clinical setting by the traveled signals of ultrasonic transmitter and receiver between two feet was developed and validated. The new device consisted of a pressure gauge and a digital centimeter indicator a...

Chest tube is a flexible plastic tube used to discharge secretion in the cavity between the lungs and chest named pleural cavity. Normally, there is a small amount of fluid in the cavity between the lungs and chest; This fluid helps the movement of lungs during breathing without abrasion. Entrance of bit of air, blood or pus because injury in the pleural cavity can prevent the lungs from fully ...

hemodynamic monitoring is needed in up to 58% of patients presented to the emergency department. central venous pressure (cvp) monitoring is generally useful to assess general volume status. there are several methods of cvp measurement, which can be categorized as invasive and non-invasive. cvp manometer and electronic transducer are among the invasive methods and direct observation, ultrasonog...

this study was designed to develop a modified tbi weight drop model for induction of focal mild cerebral injury. a stereotaxic coupled weight drop device was designed. principle arm of device carries up to 500g weights which their force was conveyed to animal skull through a thin nail like metal tip. to determine the optimal configuration of the device to induce mild tbi, six different trials w...