一、前言为落实伟大领袖毛主席对医疗卫生工作的指示,我所与天津市口腔医院共同研制补牙材料—球形白合金粉。我所党总支、革委会组织三结合研制小组,经过半年多时间的努力试制成功,并在天津市口腔 I. Preface In order to implement the instructions of Chairman Mao, who is the great leader, on the medical and health work, I worked with Tianjin Stomatological Hospital to develop the dental filling material - spherical white alloy powder. My party branch, the Revolutionary Committee will organize three combination of research and development team, after more than six months of hard work trial success, and in the mouth of Tianjin