我在趙創波度cool, finished. now wearing retainer. invisalign is very good. not painful as traditional one. not so obvious as the traditional one. however, it is not very strong. if ur teeth is like 打風, it helps. but if 哨牙,倒及就冇鐵線甘夠力!鐵線真係可改面形,但invis. 只可微微改,主要係泊齊牙齒,趙好多好多人睇,等一個鐘閒閒地!勝在平!