Kasper Dahl Kristensen graduated as a DDS in 2006, PhD in 2010 and was specialized as an orthodontist since 2013 – all from Aarhus University, Denmark. Established in Stavanger, Norway, Dr. Kristensen treats growing and adult patients with everything from minor malalignments to pre-prosthetics and orthognatic surgery. In the past years, he has focused on learning about the principles behind aligner-treatments. Since 2019 he has lectured on aligner-treatment, and he has since graduation kept an association to Section of Orthodontics at Aarhus University with both lecturing and research obligations. He has more than 30 articles published in peer-reviewed journals. Since 2020 he has also been teaching clinically at the postgraduate program in orthodontics in Aarhus, Denmark apart from the clinic in private practice.