A method for cephalometric quantitation of the morphology and growth of a patient is provided comprising the steps of making a lateral cephalometric X-ray of the patient, registering an X-ray with the analyzer, registering anatomic landmarks to determine coordinates of cephalometric readings sought to be quantified with said analyzer, summating the linear size, proportion and angular relationship of variants comprising the cephalometric regions and recording of results of the summating step for future reference. The method identifies areas of facial disharmony and quantifies the degree of change in the surgical repositioning of dento-facial structures. The analyzer used in the present invention can comprise a computer which permits instantaneous summation and therefore instant comparative analysis for purposes of treatment.