The dotted line has clinical significance in case of
The above line is OHNGREN'S line - extending from medial canthus of the eye to the angle of mandible Maxillary carcinoma arising anteroinferior to this line has a better prognosis than posterosuperior carcinoma Ohngren's classification. An imaginary plane is drawn, extending between medial canthus of eye and the angle of mandible . Growths situated above this plane (suprastructural) have a poorer prognosis than those below it (intrastructural). Ref : Diseases of ENT by Dhingra 6th edition Pgno : 207
Maxillary sinusitis
Maxillary carcinoma
Mandibular fracture
Maxillary fracture
Nose and paranasal sinuses