-Angelalign Technology Inc. (6699.HK) (“Angel”) http://www.angelaligner.com, a global clear aligner leader, today announced that Marco Gadola has. (6699.HK) (“Angel”) a global clear aligner leader, today announced that Marco Gadola. Hong Kong-listed clear aligner maker, Angelalign Technology Inc (Angel) has appointed former Chief Executive Officer (CEO) of dental medical device company, Straumann Group, Marco Gadola as.