Dental Implant Abutment Screw Loss: Presentation of 10 Cases

Re-tightening the loosened dental implant abutment screw is an accepted procedure, however the evidence that such screw will hold sufficiently Pads is weak.The purpose of this study was material analysis of lost dental implant abutment screws made of the TiAlV alloy from various manufacturers, which became lost due to unscrewing or damaged when che

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Detecting Impulses in Mechanical Signals by Wavelets

The presence of periodical or nonperiodical impulses in vibration signals often indicates the occurrence of machine faults.This knowledge is applied to the fault diagnosis of such machines as engines, gearboxes, rolling element bearings, and so on.The development of an effective impulse detection technique is necessary and significant for evaluatin

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