Dr. John Jin-Jong Lin is a clinical professor in the Department of Orthodontics at Taipei Medical University. He is a past president of the Taiwan Association of Orthodontists, and maintains a private orthodontic practice. Dr. Lin has published “Creative Orthodontics, Blending the Damon System and TADs to Manage Difficult Malocclusions.” on 2007 (1st edition), 2010 (2nd edition) and 2017 (3rd edition) and “Class III Correction Orthodontics”, in 2013 (1st edition). Dr. Lin obtained his M.S. and Certificate in Orthodontics from the Marquette University (USA). He is a Senior Consultant of both the Taiwan Orthodontics Society and the Taiwan Association of Orthodontics.

Title of Talk

The latest on TADs Class III treatment, the simple and efficient way.


The development of TADs, Temporary Anchorage Devices (including mini-plates, and mini-screws) has been applied in orthodontics for almost 15 years already. Indeed TADs helped the orthodontic treatment of many difficult Class III cases which were thought to be very difficult or impossible to treat in traditional orthodontics, now become possible to treat. The author will review most of the popular ways of using TADs to treat Class III to compare the simplicity and efficiency of current TADs on Class III treatment.

The simple and efficient way of using the IZC (Infrazygomatic screw) and buccal shelf screw, including indications, details of screw placement, CBCT analysis of the screw position to avoid screw interference, will be presented with Class III cases treated with these methods.