1New concept of modern standard tooth extractionHU Kai-jin577-5812Standard extraction instruments and their applicationPAN Jian, ZHANG Zhuang, HUA Cheng-ge581-5843New concept and method of local oral anesthesiaHOU Jin-song, TANG Hai-kuo584-5874Application of analgesia and sedation to dental extraction surgeriesWAN Kuo587-5895Clinical application of modern surgical technique to the extraction of complicated toothZHAO Ji-hong, HAN Qi-bin589-5926Application of minimally invasive tooth extraction technologyQIN Rui-feng, HU Kai-jin592-5967Common procedure errors in root canal treatment(3)——Procedure errors in root canal preparationYANG Jun, FAN Ming-wen597-6008Clinical application of cone beam computed tomography to the diagnosis and therapy of embedded teeth in jawsKUANG Shi-jun, CUI Min-yi, ZHANG Zhi-guang, ZENG Dong-lin601-6039The influence of psychro-thermal cycles on the shear bond strength of different brands of composite resinLIU Chong-wu, WU Chun-fang, CHEN Chao, DING Lin-can, LU You-guang604-60610Effect of the second premolar extraction on third molar eruptionWEI Zhu-liang607-60911Biomechanical study on the effect of the Forsus appliance on jawsWANG Jing, ZHOU Hong, GUO Wan-jin, LIU Zhi-hu, LIN Yong610-61212A clinical study of myofunctional training combined with MEAW technique in the treatment of skeletal Class Ⅲ malocclusion with high mandibular plane angleYE Lu-ping, WU Ping, CHEN Xiao-dong613-61613Tooth movement characteristics in relation to root resorption in adultsHAO Jing, DENG Run-zhi, YU Guo-jian617-61814Primary culture of osteoblasts from fetal ratYUAN Yue, HA Si-dalai, ZHU Hai-ting, WU Lin, ZHONG Ming619-62115Experimental study on apoptosis of osteocyte induced by Porphyromonas gingivalisTANG Bao-zhu, REN Xiao-bin, CHEN Yu-hua, HE Hong-bing622-62416Clinical observation on the inhibition effect of glass ionomer cement bonding appliance on enamel decalcificationSHEN Zhi-yun, WU Tong-sheng, YIN Rong-lin625-62617Influence of different attachments on periodontal health in overdentureQIN Dian-hong, ZHAO Bao-hong627-62818The research development and application evaluation of molar distalizationJIAO Hai-xia629-63119Hemangioma pathogenesis and treatment prospectsXUE Lei632-63520The development of gingival aesthetics of the maxillary anterior regionZHANG Fu-bao, ZHANG Lin636-638 