Experimental Study on Dimensional Changes of Three Kinds of Gypsum in Different Impression Materials

  • Yan, Qiaomei (School of Stomotology, Shanghai Second Medical University) ;
  • Ouyang, F.J. (School of Stomotology, Shanghai Second Medical University) ;
  • Zhang, J.Z. (School of Stomotology, Shanghai Second Medical University)
  • Published : 1999.04.01