Media type: E-Article Title: The effect of vertical bracket positioning on torque and the resultant stress in the periodontal ligament—a finite element study Contributor: Sardarian, Ahmadreza; danaei, Shahla Momeni; Shahidi, Shoaleh; Boushehri, Sahar Ghodsi; Geramy, Allahyar Published: Springer Science and Business Media LLC, 2014 Published in: Progress in Orthodontics, 15 (2014) 1 Language: English DOI: 10.1186/s40510-014-0050-0 ISSN: 2196-1042 Keywords: Orthodontics Origination: Footnote: Access State: Open Access