计算机辅助设计与制作的一体化氧化锆全瓷桩核5年临床观察
周团锋1, 王新知2,

Clinical observation of the restoration of computer aided designed and manufactured one-piece zirconia posts and cores: a 5-year prospective follow-up study
ZHOU Tuan-feng1, WANG Xin-zhi2,
X线根尖片显示氧化锆预成桩位于根管内,长度约9.0 mm