1"Reverse-root-canal technique" to extract DNA from ancient teethWANG Pei-huan, SHAO Jin-ling, DUAN Xiao-hong, GAO Yu, WEN Xuan, LIU Dai-yun671-6742Isolation, culture and identification of rat adipose derived stem cellsLIU Na, WEN Xiu-jie, LIU Nin, LI Xiang-jie, LIU Lu-chuan, DENG Man-jing675-678,6833Construction of the lentiviral expression plasmid carrying human interleukin-1 receptor antagonist gene and its expression in NIH3 T3 cellsSU Yi, SHU Wei, LI Song, SHI Xiao-dan, XU Yan679-6834The effects of recombinant Wnt3a on proliferation of human bone marrow mesenchymal stem cellsDING Bo-fu, LI Chan-juan, LIU Na, LUO Hai-lang, GONG Kun, LIU Wei-hong684-688,7015The design and detection of spap and gtf probes of Streptococcus mutansLIU Li-min, ZHAO Wei, GU Hai-jing, LIN Jia-cheng, LING Zheng-yu, LING Jun-qi689-6936Interleukin-1 genotype and its assocation with chronic periodontitis and coronary heart diseaseZHONG Liang-jun, ZHANG Qiong, ZHANG Lei, SUN Da-lei, ZHANG Yuan-ming694-6977Expression and distribution of Cyt-C and Caspase-9 in gingival tissues with chronic periodontitis in gingival tissues with chronic periodontitisZHANG Ju-mei, WANG Xue-mei, FENG Li, YU Zhan-hai, ZHANG Xuan698-7018Effects of Er:YAG laser and fluoride gel or a combination of laser and fluoride gel on acid resistance of enamelWU Ying-nan, ZHU Ling, CAI Chen-xing, CHEN Ting, LIU Zi-han702-704,6939The fracture behavior of premolar teeth with class Ⅱ cavities restored by polyethylene fiberCHU Ting, WU Hua-ying, CHEN Ya-ming705-70910Comparison of different methods in the survey of gingival bleeding statusZHANG Jing-hua, LI Chun, SUN Li-li, HE Tao, HU Yun-dong710-713,71711Epidemiology survey and analysis of the factors associated with dental anxiety among adult patientsCUI Cui, QI Hong-yan, HUANG Jing-jie, CHEN Li-ya714-71712Clinical study of restoration of fractured anterior teeth by orthodontic treatmentDUANG Yin-zhong, TANG Rong-yin, ZHANG Jing, LIU Xin, QIAN Hong718-720,72313In vitro study on the anatomy of maxillary second molar pulp cavityLI Jian, YANG Ying, MA Fu-jun, YANG Dong-ru, LU Peng721-72314Research advancement on two-component signal transduction systems of Streptococcus mutansJI Xiao-li724-727,73315Er:YAG laser application in periodontal therapyXU Yan728-73016Application of PREPassistant system in the evaluation of cavity preparationCAO Ling, ZHU Qing-ping, LI Jin, WU You-nong731-733 