The amazing IZC (Infrazygomatic Crest) screw

- Apparatus for molar distalization - Advantages of mini-screws - Combination of IZC and PSL: advantages - Principles of installation of mini-screws - Modified IZC position - Problems when installing the mini-screw: prevention - Choosing the length of the mini-screw - Selecting the position of the mini-screw: IZC 6 and IZC 7 - Method of double periapical X-ray - Advantages of the elastic chain - Interproximal enamel reduction: indications - Buccal or palatal screw position: advantages and disadvantages - Indications for the removal of third molars.