• Closed eruption technique: a crestal incision is made and a full thickness flap is reflected. Bone is carefully removed around the crown and a bracket attached. The flap is closed and the tooth is allowed to erupt down though the crestal incision site as traction is placed on the ligature.
  • Apically repositioned flap had more unaesthetic scarring, increased clinical crown length, and a greater risk of intrusive relapse. Periodontal attachment level was the same in the two techniques.
  • Surgical uprighting of 2 nd molar is best performed after 2/3 of root development is completed. At this stage, the risk of root fracture is minimal. Performing this procedure when less than 2/3 of root development has been completed could result in the second molar floating in its new position. Although the procedure has been performed when root development is complete, the incidence of subsequent pulpal necrosis or calcifications is increased.