Outcome differences after orthodontic camouflage treatment in hypo- and hyperdivergent patients - A retrospective cephalometric investigation

Objectives To compare diferences in outcome in skeletal and dental parameters in hypo- and hyperdivergent Class II patients after extraction of upper frst premolars and comprehensive orthodontic treatment. Materials and methods 37 Class-II-patients with dental camoufage treatment were divided into a hypo- (n=18) or a hyperdivergent (n=19) group depending on the mandibular plane angle (hypo:<34° or hyper:≥34°). Lateral cephalograms were available before (T1) and after (T2) treatment and were analyzed with customized measurements. Data from a growth survey served as a control and were used to calculate the actual treatment efect. Data were analyzed by one-sample Student’s t-tests and independent Student’s t-tests. Statistical signifcance was set at p