The reason why the thick steel wire on orthodontic braces needs to be bent is to achieve better orthodontic effect. By bending the thick steel wire, soft and continuous corrective force can be generated, so that the teeth can move, arrange neatly and rebuild continuously. This kind of correction can avoid the damage of excessive orthodontics to teeth, and at the same time make the teeth reach the best position in three dimensions.

In the specific operation, the doctor will bend the thick steel wire moderately according to the actual situation of the teeth and the correction goal to achieve the best correction effect.