How long does the rubber band usually last?

The rubber band is usually worn for 2-3 months. In MBT technology, it is necessary to hang a rubber chain between the buccal side of the molars, the buccal tube and the traction hook, so that the teeth slide along the straight wire arch and close the gap. The monthly advancement is about 2mm, and the extraction gap is 4-5 mm. It takes 2-3 months to completely close. If the intermaxillary traction is performed, the hanging rubber band can make the upper and lower teeth establish a sharp socket locking relationship for about two months. In another case, after implant anchorage is implanted in buccolingual bone cortex, intermaxillary traction is carried out by hanging rubber band to adjust the position of teeth, which takes about two months to complete.