牙醫學(一)（包括口腔解剖學、牙體形態學、口腔組織與胚胎學、生物化學等科目及其臨床相關知識）題庫下載題庫

Unlike physiologic tooth movement, in which bone resorption of the alveolar wall occurs on its PDL aspect, orthodontic tooth movement also causes some internal or undermining resorption, in which alveolar bone is remodeled from its endosteal face.