Media type: E-Article Title: Periodontal conditions after facial root tipping and palatal root torque of incisors Contributor: Wehrbein, Heinrich; Fuhrmann, Robert A.W.; Diedrich, Peter R. imprint: Elsevier BV, 1994 Published in: American Journal of Orthodontics and Dentofacial Orthopedics Language: English DOI: 10.1016/s0889-5406(94)70067-2 ISSN: 0889-5406 Origination: Footnote: