An internationally recognised orthodontist, teacher, researcher and author, Dr Skander Ellouze is renowned as a global authority on aligners, passive self-ligation, lingual orthodontics and skeletal anchorage systems. He enjoys working with patients as much as sharing his knowledge and experience with his peers, and he takes a holistic approach to patient care. During the fifth European Aligner Society (EAS) congress, held in Valencia in Spain, Dr Ellouze generously gave of his time in an interview with Dental Tribune International after presenting his paper to talk about when aligners are the optimal modality choice and why.