Objective: This study discusses the relation between the rubbed state of basalsurface of removable denturecasting framework and oral hygene.
目的：探讨可摘局部义齿铸造支架组织面研磨状况与口腔组织健康之间的关系。
2
Its sedimentary structure includes large-scale inclined beddings, trough cross-beddings, low-angle cross-beddings as well as an erosional basalsurface.
具有大型单斜层理、槽状交错层理和低角度交错层理，底部具冲刷面；
3
Pillow structure consists of a suit of deformed concave upward bodies made of silt and sand whose original layering bent round parallel the basalsurface and it truncated at the top surface.