Evaluation the Stability of the Medial end of the Third Palatal Ruga as a Landmark in Maxilla in Extraction Cases, and the Possibility of Using it in Mandible

Cephalometric superimpositions are the most commonly means used to assess the orthodontic teeth movement – especially- in cases of extraction - with their attendant risks and difficulty, therefore dental casts were an alternative way for serial assessment. So the aim was to evaluate the stability of the medial end of the third palatal ruga as a landmark in maxilla in extraction cases, and the possibility of using it in the mandible.