Togari A
Aichi Gakuin Daigaku Shigakkai Shi. 1989 Dec;27(4):1007-15.
In this research, I conducted a dynamic assessment of both the orthodontic direct force of a round wire and the torque of a rectangular wire, which are used quite commonly for clinical orthodontic treatment. The results are summarized as follows. 1. Leveling .0175" multistranded wire and .016" Ni-Ti wire are orthodontic wires with great flexibility and are superior to others for clinical use at the early stage of leveling. However, if the wire is too firmly legated to the teeth with a flexure of more than 2.0 mm for the former, and more than 0.5 mm for the latter, there is the danger of excessively strengthening the orthodontic force. In the case of .016" stainless steel wire, it is highly possible to give an excessive orthodontic force if it is tied to all the teeth affected by crowding without a bending loop. 2. Torquing Because of their low torque, .017" x .025" multistranded wire and .017" x .025" Ni-Ti wire are suitable for controlling torque from the early stage of treatment. The careless use of .017" x .025" and .018" x .025" stainless steel wires must be avoided because of the possibility of producing an excessive torque on a local part.
在本研究中，我对正畸治疗中临床常用的圆丝正畸直接力和方丝转矩进行了动态评估。结果总结如下。1. 排齐：.0175英寸多股丝和.016英寸镍钛丝是柔韧性极佳的正畸丝，在排齐早期临床使用时优于其他丝材。然而，如果将前者以超过2.0毫米的弯曲、后者以超过0.5毫米的弯曲过度牢固地结扎到牙齿上，则存在过度增强正畸力的风险。对于.016英寸不锈钢丝，如果在没有弯制曲的情况下将其结扎到所有拥挤的牙齿上，则极有可能施加过大的正畸力。2. 转矩：.017英寸×.025英寸多股丝和.017英寸×.025英寸镍钛丝由于其低转矩，适合在治疗早期控制转矩。必须避免粗心使用.017英寸×.025英寸和.018英寸×.025英寸不锈钢丝，因为可能在局部产生过大的转矩。
