1Selection and application of materials covering and filling in extraction socketsLI Guo-wei, ZHANG Shu-yin, MO Jing-zhen, HOU Rui, HU Kai-jinSYMPOSIUM577-5812Selection and application of pain-relieving materials filling in extraction socketsSUN Xiang-zhao, HU Kai-jin, ZHOU Hong-zhi, LIU Chuan, XUE YangSYMPOSIUM582-5853Selection and application of hemostatic materials filling in extraction socketsWANG Jing-juan, HU Kai-jin, LIU Ping, ZHANG Lin-lin, ZHANG Shu-yinSYMPOSIUM586-5894Selection and application of covering and filling materials for oroantral perforation (fistula) extractionJIA Sen, HU Kai-jin, MA Yang, DENG Tian-ge, DING Yu-xiang, LI Yong-fengSYMPOSIUM590-5925Invisible no-brackets appliances in orthodonticsFENG Cui-juan, LU Shu-juan, LI Jia, LI Le, WANG Qing-qing, TIAN Yu-louEXPERT LECTURE593-5976Clinical efficacy of implant treatment following alveolar ridge preservation or natural healing in the extraction sockets of molars with severe periodontitisBI Xiao-cheng, WEI Yi-ping, HU Wen-jie, ZHAN Ya-lin, XU Tao, ZHEN Min, LIU Yun-song, ZHANG BoORIGINAL CONTRIBUTIONS598-6047Experimental study on the effect of a new titanium-copper alloy on the ultrastructure and genomic DNA of Porphyromonas gingivalisZHANG Yan-ting, XIE Yan-ting, GU Shu-yang, HE Jing, JIANG Lu-lu, ZHANG Chong, DENG Chun-fu, ZHANG Er-lin, ZHAO Bao-hongORIGINAL CONTRIBUTIONS605-6088Application of computer assisted navigation system in temporomandibular joint ankylosesZHANG Bin, CHENG Hui-na, ZHOU QingORIGINAL CONTRIBUTIONS609-6139Efficacy of repositioning splint therapy made with average values articulator and full-adjustable articulator for anterior disc displacementGUO Ying, QU Zhe, CHEN Xiao-dongORIGINAL CONTRIBUTIONS614-61710Analysis of primary tooth caries and caries activity of preschool children aged 3-5 years in BaotouMIAO Yu, FANG Hui, HUO Rong, ZHANG Xiao-minORIGINAL CONTRIBUTIONS618-620,62511Association between self-reported oral health and clinical examination outcomes among older adultsZHANG Ying, WU Bei, XU Han-zhang, CHENG Rui-bo, CHENG Min, LI YanORIGINAL CONTRIBUTIONS621-62512An animal study of a novel bioceramic cement iRoot FM used as root canal fillings in primary teethZHU Shu, FU Yue, LIU Xue-mei, BAO Zhi-fan, CHEN XuORIGINAL CONTRIBUTIONS626-629,63413Research progress on ajunctive treatment for aggressive periodontitisSUN Xiao-juan, XU Chun-jiaoREVIEW630-63414Current research advance on dental stem cells in pulp-dentin regenerationMA Xue-juan, CHEN XuREVIEW635-63815@@639-640 