Background: There are studies evaluating cephalometric parameters in Class II division 2 patients. There are no similar investigations in Peru. Objective: To evaluate post-treatment changes in incisor inclination and position and their relationship with the nasolabial angle (ANL) and point A (PA) in Class II division 2 patients, with and without extractions in cases of the Orthodontic specialty program of the Universidad Peruana Cayetano Heredia. Material and methods: manual tracing and measurements of 62 lateral cephalometric radiographs (31 pre and 31 post-treatment) were performed, of patients with Malocclusion Class II division 2. Statistical analysis was performed with SPSS 21.0 for Windows. Results: There was proinclination and incisive protrusion in all patients. In patients with extractions, the ANL presented non-significant changes, but significant correlations: when the lower i...