AL-Hajjaj, Aisha Nassr2022-05-182022-05-1820011856https://drepo.sdl.edu.sa/handle/20.500.14154/3705This study aims to analyze the limited experience in the field of oral Aljrajh in major medical centers for research in the Kingdom of Saudi Arabia : Armed Forces Hospital and King Faisal Specialist Hospital and Research Center in Riyadh.enThesis