An interview with Chris Chang

The revolution came just as a Taiwanese researcher showed the world how we could use the screws in an absolutely innovative and sophisticated way by installing them in areas previously unknown to most orthodontists: in extra-alveolar regions. [...]the extra-alveolar mini-implants inserted in the regions of the infrazigomatic crest, mandibular ramus and buccal shelf appeared, allowing free dental movement along the maxillary and mandibular arches, since the screws are in areas outside the line of root action. Weber Ursi Although the currently available clinical research studies fail to provide a definitive answer to the superiority of the Damon system versus conventional brackets, my own extensive clinical experiences and natural instincts have convinced me it is. Marcio Almeida I prefer manual insertion and this method requires stronger, more resilient screws. [...]I use screws of 2mm in diameter, made by stainless steel. While in maxilla the bone is relatively softer, both SS and titanium screws are equally applicable; SS screws are less likely to fracture in mandible, compared to titanium ones. [...]I only use SS screws in mandible.