An arrangement is provided for a non-hermetical seal between the stator and the rotor of a gas turbine. After pulpectomy or enlargementcleaning of an infected root canal, a root canal filler for non-extracted tooth, which comprises tooth pulp stem cells and an extracellular matrix, is inserted into the apical side of the root canal of the non-extracted tooth. In one embodiment, the measurement device may comprise a pair of coils for measuring the magnetic field generated by an implanted actuator utilized to simulate the middle ear of a patient. By removing the sidewall spacers, the aspect ratio of the gap between adjacent closely spaced gate electrodes is substantially reduced, thereby preventing voids during the subsequent deposition of an ILD layer.