In a study of therapeutic extractions in orthodontics, incisor relationship anomalies were described in the three planes of space:
transverse, vertical and sagittal planes. 664 patients were considered among them, a large number had occlusal disorders in the
anterior sector: we mainly observed midline discrepancies (69,6%), deep bite (48%), open bite (27,6%), proclination (61,1%),
retroclination (26,2%). Incisor relationship intervenes in our therapeutic choices, particularly with regard to extracting or not, but
can be an indicator in favour of screening and early treatment.
Keywords: Incisor relationship anomalies, Three planes of space, Therapeutic choices