Gianelly A A, Vaitas A S, Thomas W M
Boston University School of Graduate Dentistry, Mass.
Am J Orthod Dentofacial Orthop. 1989 Aug;96(2):161-7. doi: 10.1016/0889-5406(89)90257-6.
Repelling magnets, which were anchored to a modified Nance appliance cemented on the first premolars, were activated against the maxillary first molars to move them distally. Eighty percent of the space created represented distal movement of the first molars.
将固定在粘结于第一前磨牙上的改良Nance矫治器上的推簧抵住上颌第一磨牙,使其向远中移动。所产生间隙的80%表现为第一磨牙的远中移动。