1. A method of extracting an implant mounted in a bone, comprising the step of applying torque to the extraction tool to screw it into the interior of the implant until the implant-bone connection is broken, characterized in that it applies torque in successive phases, in each phase, torque is applied to the tool to extract until a certain maximum torque value is reached, and then the application is weakened annogo torque, the increase above a certain maximum torque value in each subsequent faze.2. The method according to claim 1, further comprising, in each phase, an additional step of applying a torque in the opposite direction to disconnect the extraction tool from the implant before the next application of the extracting torque. The method according to claim 1, comprising the step of making an incision with a trepan drill on the outside of the implant-bone joint to reduce the maximum torque that must be applied to the extraction tool. A trepan drill (8, 8 ') for performing the method according to claim 2, characterized in that it comprises in the outermost region a reduced region (9) with a diameter smaller than the rest of the trepan drill (8), said reduced region ( 9) ends with an emphasis (10) indicating when the trepan drill (8, 8 ') should not be inserted further. 5. The trepan drill (8 ') according to claim 4, comprising a housing (11) and a tip (12) connected by �1. Способ извлечения имплантата, установленного в кости, содержащий этап, на котором прикладывают крутящий момент к инструменту для извлечения для ввинчивания его во внутреннюю часть имплантат до тех пор, пока не будет разрушено соединение "имплантат-кость", отличающийся тем, чтоприкладывают крутящий момент последовательными фазами, при этом в каждой фазе крутящий момент прикладывается к инструменту для извлечения до тех пор, пока не будет достигнуто определенное максимальное значение крутящего момента, и затем ослабляют приложение указанного крутящего момента, при этом увеличивают указанное опре