One hundred years of orthodontic history.

Abstract

The special section, “100 years of orthodontic history,” published in the December 2015 issue of the AJO-DO, delineates the important events in the past 100 years of orthodontics and provides a rich perspective to young orthodontists on how the field has developed. The timeline shows how far the practice of orthodontics has evolved; moreover, these major events could serve as building blocks to push the boundaries in the future. Two clinician-scientists, Kaare Reitan and Per Rygh, who fundamentally contributed to the biology of tooth movement, are missing in the history timeline. 1951 Kaare Reitan Histological analyses of periodontal tissue reaction in response to orthodontic tooth movement 1973 Per Rygh Ultrastructure changes in periodontium as a function of orthodontic tooth movement Reitan (1903-2000) and Rygh (1930-2008) extensively studied the histology of tooth movement in humans and rodents.1Reitan K. The initial tissue reaction incident to orthodontic tooth movement as related to the influence of function: an experimental histologic study on animal and human material.Acta Odontol Scand Suppl. 1951; 6: 1-240PubMed Google Scholar, 2Rygh P. Hyalinization of the periodontal ligament incident to orthodontic tooth movement.Den Norske Tannlaegeforenings Tidende. 1951; 84: 352-357Google Scholar Their findings partly defined the principles of tooth movement biology: the core of our daily orthodontic practice. In my opinion, we should add these 2 people to the list. Editor's note: Both Kaare Reitan and Per Rygh are included in another Centennial Special Section, “100 years of publishing, 100 people of influence,” in the May 2015 issue of the Journal (Am J Orthod Dentofacial Orthop 2015;147 (Suppl 2):S147-54). 100 years of orthodontic historyAmerican Journal of Orthodontics and Dentofacial OrthopedicsVol. 148Issue 6Preview Full-Text PDF