1Standard methods of tooth extractionWANG Yong641-6432Extraction under ECG monitoring in China:development,current situation and thinkingYU Shao-ming643-6473Tooth extraction in patients with special tooth and health conditionsCUI Nian-hui647-6504Prevention and treatment of the complications of tooth extractionZHOU Hong-zhi650-6555The standardized practice of dental assistants in tooth extraction.HE Jie, ZHANG Lin-lin655-6576First aid technology in dental clinicsZHANG Guo-liang, ZHU Wei658-6607Common procedure errors in root canal treatment(4)——Procedure errors in root canal obturationYANG Jun, FAN Ming-wen661-6638Study on the relationships among expression of vascular endothelial growth factor,microvessel density and clinicopathological characters of mucoepidermoid carcinomaOU YANG Ke-xiong, LIANG Jun, HUANG Zhi-quan, LIN Yu-jing664-6669The expression of VEGF and COX-2 in hemangiomasXUE Lei, WANG Xu-kai667-66910The clinical value of computed tomography angiography in skin flap repair of tissue defect following oral carcinoma ablationSHI Kai, HANG Jun, YOU Yun-hua, WANG Yue-ping, ZHANG Hua-wei670-67211The study of arch width in class Ⅱ malocclusion during the early permanent dentitionsJIANG Hong-tao, ZHANG Yang673-67512Expression of TGF-β1 on the interface of surface-prepared titanium implant and boneLI Zhen-chun, SONG Ming-yu676-67913Largest Lyapunov exponents analysis of the surface electromyograph signal of the masseterZHANG Xian-xian, HE Zhe, ZOU Bo, WU Xiao-bo680-68214Evaluation of the feasibility and chronergy in the treatment of entamoeba gingivalis with ornidazole injection.ZHANG Qian, SUN Gui-lan683-68415The survey on the effect of initial periodontal therapy for gingival overgrowth induced by calcium channel blockerLUO Wei-xin685-68616Observation on the clinical effect of the treatment for teeth' s wedge-shaped defects with two kinds of materials.GUO Qing-quan, DAI Xiao-ying, JIAN Jie687-68817The clinical effects of two different binders in bonding fiber postJIN Ying-wu, LIU Ying689-69018The progress of application of finite element method to dental implantZHANG Shi-jian691-69419Study on the application of Nd:YAG laser in periodontal treatmentYANG Bin695-69720The research progress in evaluation system of facial paralysisWU Nan, LIU Yong698-700 