Abstract：Thirty four residual crowns of 27 cases were restored with full core crown,and patients were followed up for 3 years.The results showed that none of the restorations became loosened or fall.There was no secondary caries occurring in all treated teeth and
孙光; 黄辉; 王悦竹. 下颌第一磨牙残冠的核冠修复[J]. 南昌大学学报（医学版）, 1999, 41(04): 1-.
Sun Guang Huang Hui Wang Yuezhu (Department of Oral Medicine,The First Affiliated Hospital of Jiangxi Medical College,Nanchang,330006). . , 1999, 41(04): 1-.
1999, Vol. 41 