1Postoperative hemorrhage of tooth extraction caused by systemic factorsWANG Jing-juan, WU Di, DING Yu-xiang, ZHOU Hong-zhi, HU Kai-jinSYMPOSIUM705-7072Causes and prevention of the tooth extraction bleedingLI Da-lu, WU Di, HU Kai-jin, DING Yu-xiang, ZHOU Hong-zhiSYMPOSIUM708-7113Causes and prevention of infection and subcutaneous emphysemaMA Yang, WU Di, HU Kai-jin, DING Yu-xiang, ZHOU Hong-zhi, HOU RuiSYMPOSIUM711-7144Causes and prevention of dry socketSUN Xiang-zhao, WU Di, HU Kai-jin, ZHOU Hong-zhi, DING Yu-xiangSYMPOSIUM715-7175Effect of PG0839 gene of Porphyromonas gingivalis on IL-1β and IL-6 in liver tissues and serum of miceLIU Jing-bo, LIN Li, ZHANG Dong-mei, LI Chen, PAN Ya-ping, GUO YanORIGINAL CONTRIBUTIONS718-7206Study on the relativity of nuclear γ-H2AX foci number of peripheral blood lymphocytes with acute radiation injury after chemotherapy in patients with head and neck malignancies.MEI Jun, CHEN Bo, FU GangORIGINAL CONTRIBUTIONS721-7257Castability study of domestic pure titanium and Ti-6Al-4V alloyLIU Yang, MU Wen-ling, LI Zhen-chun, CHEN Xiao-dongORIGINAL CONTRIBUTIONS726-7308The influence of high glucose circumstance on proliferating cycle of MG63 cell and expression of correlated factorsZHANG Gui-rong, HONG Yang, WANG XueORIGINAL CONTRIBUTIONS731-7359The significance of direct immunofluorescence test in the diagnosis of oral mucosal bullous diseasesLI Yan-jie, PENG Chuan-yang, ZHANG Ying, WANG Xian-fuORIGINAL CONTRIBUTIONS736-73910A comparative study of the clinical efficacy of rapid and slow expansion with Hyrax for correcting narrow maxilla during late mixed dentitionYE Lu-ping, CHEN Jing-jing, FENG XinORIGINAL CONTRIBUTIONS740-74311Expression of COX-2 and Survivin in ameloblastoma and its clinical significanceLI Le, ZHANG Xing-le, WANG Peng, LIU YuORIGINAL CONTRIBUTIONS744-74612Production of a machinable alumina bulk and the scanning electron microscopic observation of its glass-infiltrated propertiesKANG Xiao-yan, SUN Qiang, AI Hong-junORIGINAL CONTRIBUTIONS747-75013Restoration of posterior tooth defects with IPS Empress 2 casting castable ceramic inlay :clinical study of 30 casesZHANG YueBRIEF ORIGINAL CONTRIBUTIONS751-75214Pulp canal obliteration following dental traumaLI Chang, BAO Zhi-fanREVIEW753-75615Research progress of the silk fibroin-chitosan scaffolds in bone tissue engineeringTONG ShuangREVIEW757-76116The history and development of chairside CAD/CAM restoration systemLIU Xin-ran, GUO Hang, LIU FengREVIEW762-76617Analysis of one case of root canal treatment failureQU Liu, QIU Li-hong, XUE MingCASE REPORT767-768 