Comparative studies on cariogenic bacteria of the root surface before and after post-core crown restoration in aged people
Lü Yan, Xu Xinyi, Guo Bin, Fu Min, Jia Yue, Guo Xiaolong, Chen Yuanyuan, Yuan He
West China Journal of Stomatology . 2014, (1): 71 -74 .  DOI: 10.7518/hxkq.2014.01.017