Jörg A Lisson1, Joachim Tränkmann. 1. Department of Orthodontics, Hanover Medical School, Hanover, Germany. lisson.joerg@mh-hannover.de
Abstract
AIM: The present study investigated treatment effects in patients with Angle Class II, Division 1 malocclusions treated with jumping-the-bite appliances on the basis of cast evaluation and lateral cephalometrics. RESULTS: A significant reduction in overjet (p < 0.001) and overbite (p < 0.01) occurred during the course of treatment. A significant reduction in the SNA-angle (p < 0.001) and increase in the SNB-angle (p < 0.001) led to a reduced ANB-angle (p < 0.001). The treatment effect on the maxilla was greater than on the mandible. A slight posterior rotation of the maxilla (p < 0.05) occurred whereas the other vertical relations did not change significantly. The upper incisors were significantly retruded (p < 0.001) while the lower incisors were increasingly protruded (p < 0.001). The interincisal angle was not markedly altered.
AIM: The present study investigated treatment effects in patients with Angle Class II, Division 1 malocclusions treated with jumping-the-bite appliances on the basis of cast evaluation and lateral cephalometrics. RESULTS: A significant reduction in overjet (p < 0.001) and overbite (p < 0.01) occurred during the course of treatment. A significant reduction in the SNA-angle (p < 0.001) and increase in the SNB-angle (p < 0.001) led to a reduced ANB-angle (p < 0.001). The treatment effect on the maxilla was greater than on the mandible. A slight posterior rotation of the maxilla (p < 0.05) occurred whereas the other vertical relations did not change significantly. The upper incisors were significantly retruded (p < 0.001) while the lower incisors were increasingly protruded (p < 0.001). The interincisal angle was not markedly altered.
Authors: Jörg Alexander Lisson; Kay Mokrys; Gero Stefan Michael Kinzinger; Bettina Glasl; Björn Ludwig Journal: J Orofac Orthop Date: 2013-03-07 Impact factor: 1.938
Authors: Gero Stefan Michael Kinzinger; Jan Hourfar; Cornelia Kober; Jörg Alexander Lisson Journal: J Orofac Orthop Date: 2018-02-20 Impact factor: 1.938