[Teleradiographic angle from the front of the face]

An antero-posterior teleradiographic view of the face, with the prinicipal ray parallel with the biting plane of the molars, makes it possible to complete the morphological study undertaken with lateral teleradiography and that taken with a vertical incidence. It is well known that certain complex dysmorphoses can be analysed only with three views taken in orthogonal planes. However it is obvious that whilst one now has available valuable methods of examination for precise morphological study, not all of the useful radiological signs are known. New research is required in order to exploit as efficiently as possible these examinations and thus enrich knowledge of radiological appearances. Finally, it is also desirable that these precise films should be useful not only in facio-dental orthopaedics but also in other branches of our specialty.