Figure 4. The treatment progress during simultaneous molar intrusion and canine retraction. (A) At the start of simultaneous molar intrusion and canine retraction. (B) Two months after the start of simultaneous molar intrusion and canine retraction. (C) Four months after the start of simultaneous molar intrusion and canine retraction. (D) Representative intraoral photographs showing gradual changes in the incisor relationships.