1Standardized operation in dental clinic541-5442An architecture study of dental plaque biofilm in vivoMA Rui, LIU Zheng, HUANG Zheng-wei, TANG Zi-sheng, ZHU Cai-lian, YE Dong-xia545-5473Study of relationship between cyclooxygenase -2 expression and degree of inflammation in gingival tissueLIN Zhi-yong, YANG Pi-shan548-5514Establishment of three dimensional finite element of the edentulous mandible with multi- implantsJIAN Bo, SONG Ying-liang, LI De-hua, ZHANG Wen-chao552-555,5925Research on Role of TLR4 in PDLCs secreting process of IL-8WU An-ping, SHU Rong, LI Hao-yan, ZHANG Xiu-li556-5596Analysis of Streptococcus Sanguis and Prevotella intermedia in subgingival plaque of patients with coronary heart disease560-5637Therapy for furcation involved teeth by guided tissue regeneration and bone implantationCAO Liang-ju, YAN Mei, LIAO Sheng-lei564-5678Mechanical analysis of the endodontic instruments subjected to bending and torsional loadsGU Yong-chun568-572,5809Influence of different solvent adhesives on nanoleakage of the resin-dentin interfaceZHAO San-jun, CHEN Ji-hua, WEI Ke-wen573-57610Effects of bond strength on pit and fissure sealants using self- etching bonding systemLI Lei, YUAN Jie, ZHANG Lei, ZHANG Xiao-dan577-58011Study on the improvement of wear resistance of the enamel with etching by surface sealing during orthodontic treatmentZHANG Zhao-de, ZHANG Ying, HOU Rui, CAO Jun581-58312Periodontal status of 1 009 pregnant women in Wuhan city584-58713Relationship between periodontitis and cardiovascular diseaseLIU Shu-qin, GAO Jin-fu588-59214Progress of study on the pathogenesis of gingival hyperplasia induced by the calcium antagonistsNI JING, SHU Rong593-59615Preliminary exploration of network prosthodontics course teaching on case-based learningTIAN Min, JIA Jun, DUAN Yuan-yuan, ZHANG Yu-mei, ZHANG Shao-feng597-600