1Causes and prevention and management of soft tissue injuryZHANG Shu-yin, MO Jing-zhen, ZHOU Hong-zhi, HU Kai-jinSYMPOSIUM641-6442Causes and prevention and management of bone tissue injuriesYANG Xia, HOU Rui, ZHOU Hong-zhi, HU Kai-jinSYMPOSIUM645-6483Causes and prevention of adjacent tooth, opposing tooth and temporomandibular joint injuryLIU Wei, ZHOU Hong-zhi, HU Kai-jin, DING Yu-xiangSYMPOSIUM648-6514Causes and prevention of pain and swellingLIU Chuan, HU Kai-jin, ZHOU Hong-zhiSYMPOSIUM651-6555Finite element study on the effect of force directions on en mass retraction of upper anterior teethSU Jie-hua, LIU Jia-li, XU Lin-yu, ZHONG Ping-ping, ZHANG Duan-qiangORIGINAL CONTRIBUTIONS656-6606The study on the changes of cardiovascular disease related factors before and after treatment and their influence on brain tissue in rats with experimental periodontitisLI Chun-nian, XIAN Xiao-hui, LI Shu-juan, YANG Dong-ru, WU Ming-xuan, HUANG Xiang-heORIGINAL CONTRIBUTIONS661-6647Effect of fluoride on the expression of endoplasmic reticulum chaperone GRP78 and caspase-12 in osteoblasts of rat boneGU He-feng, ZHANG Ying, ZHANG Kai-qiang, LIU Lu, MA Lin, CHENG Rui-bo, ZHANG Si-yuORIGINAL CONTRIBUTIONS665-668,6728Effect of phenytoin on attachment of human periodontal ligament stem cells on cementum slices under existing lipopolysaccharideQIU Cai-qing, SUN Chao, WANG Bao-yan, QIU Ying-na, SUI Guo-long, LIU Li-mei, ZAI Li-yingORIGINAL CONTRIBUTIONS669-6729Antimicrobial effect of chlorhexidine carboxymenthylated chitosan on Enterococcus faecalis: an in vitro studyWANG Xue-mei, LIU Yang, SHANG De-hao, YU Jing-taoORIGINAL CONTRIBUTIONS673-67510Comparative study on the effect of different methods of bleaching on dental fluorosisNIU Wen-zhi, WANG Peng-lai, LIU Zong-xiang, WANG WeiORIGINAL CONTRIBUTIONS676-678,68211The application of free tissue flap in the reconstruction of total lower lip and chin defectsXU Da-peng, XUE Lei, SUN Ning-ning, LI Gang, LIU Zi-mei, WANG Xu-kaiORIGINAL CONTRIBUTIONS679-68212Hs-CRP and HCY level in patients with advanced periodontitis and ischemic strokeSUN Xiao-ju, JIANG Xiao-xu, WANG Yun, HOU Jun-chi, XIE Hong, TANG Wei, DENG WeiORIGINAL CONTRIBUTIONS683-68513Clinical application of Mtwo rotary nickel-titanium instruments in root canal therapy of primary molarsLI Heng, ZHU Ding-gui, YU Shao-lingORIGINAL CONTRIBUTIONS686-687,69014Clinical study of the relationship between the rheumatoid arthritis and periodontitisLIU Ying-zhi, XU Xiao-juan, CHEN Bi-lian, WEI Ying-ying, LIN Jing-liORIGINAL CONTRIBUTIONS688-69015Development of oral LED light curing unitsGONG Hai-huan, YANG Yang, SONG Ai-yang, SHI Lei, FANG TENG Jiao-zi, ZHU SongREVIEW691-69316Research progress of the curve of Spee in orthodontic treatmentsLI BoREVIEW694-69817Role of mTOR signaling pathway in the field of stomatologySHEN Jia-yuanREVIEW699-70218One case of ectopia of the bilateral fourth molarsGAI Yun, ZENG Can, ZHOU Jing-yanCASE REPORT703-704 