1。Establishment of immortalized periodontal ligament progenitor cell line and its behavioural analysis on smooth and rough titanium surface.8 u$ b% `8 ]3 F2 ?6 o: U
2.Changes in the shape and orientation of periodontal ligament fibroblasts in the continuously erupting rat incisor following removal of the occlusal load.9 a$ o# t" E% S& Q- V* g3 V
3。investigation of multipotent postnatal stem cells from human periodontal ligament.