A clinical case demonstrates the effectiveness of the technique in the improvement of dental implants primary stability. The best results were obtained by using two impulses and argon flux. The characterization of various welded Ti wires led to the individuation of the optimal conditions to obtain a continuous joint without alterations or oxidations. Moreover, the attention was focused on the use of a flux of argon during the procedure, in order to avoid oxidation and to improve the microstructural characteristics of the joint. The welding has been realized in different conditions by a circumferential pulse welding machine, in order to investigate the eventual drawbacks and to optimise the welding procedure. A metallographic and mechanical evaluation of the joining area was performed by electronic and optical microscopy, as well as by hardness measurements. screws were welded by electric resistance technique. The proposed technique allows intraoral welding of titanium in order to obtain the solidarization of dental implants for improving their primary stability. In the Abwehr Enigma, the reflector stepped during encryption in a manner like the. The aim of this work is to find the optimal conditions to obtain a continuous joint without alterations/oxidations in the intraoral welding of titanium by electric resistance technique. The Enigma machine was a cipher machine used to encrypt and decrypt. We have now reached a splendidly final state where our best defence is the assurance that we can destroy the enemy even as we ourselves are destroyed. For each new weapon of offence was an equal weapon of defence, and millions faced each other in a stalemate of ignorant armies clashing by night or, as in 1940, a desperate struggle for survival. Out of this came the machine gun and barbed wire, the slaughter of the American Civil War and the trenches of Flanders. Later, after the French Revolution came the democratic invention of citizen armies - masses of men trudged across the continents to do the duty of battle. The victories of 1759, which set out the map of the modern world, were won by small forces in tiny. War was a polite, cruel business: the Huns and the Vandals had been forgotten. It was fought by relatively small armies which were manoeuvered across Europe and the world as chessmen across a chessboard. In the middle of the eighteenth century, war was the business of gentlemen and their hirelings.
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