<prompt> Ohgrens line passes from -Medial canthus to angle of mandibleLateral canthus to angle of mandibleMedial canthus to mastoid processLateral canthus to mastoid process  <response>: Ans. is a i.e., Medial canthus to angle of mandible Ohngrens classification of maxillary carcinoma:o Presented by the ohngrens line which passes from the medial canthus of the eye to the angle of mandible,o The growths situated above this plane have a poorer prognosis than those situated below.Ohngrens line 1933o A line from medial canthus of the eye to the angle of the mandible. Anteroinferiorinfrastructure : Good prognosis. Superoposteriorsuprastructure: Poor prognosis, early extension eye, skull base, pterygoids, and intratemporal fossa. 