The Biomechanical Function of Periodontal Ligament Fibres in Orthodontic Tooth Movement McCormack, Steven W. ; Witzel, Ulrich ; Watson, Peter J. ; Fagan, Michael J. ; Gröning, Flora Abstract Publication: PLoS ONE Pub Date: July 2014 DOI: 10.1371/journal.pone.0102387 Bibcode: 2014PLoSO...9j2387M