1Material properties of TMPT-containing dentin sealantZHOU Qin, JIN Hai-li, TAN Wen-hong, SUN Feng, LU Yi547-5502The influence of three natural drugs on the microhardness of demineralized cattle incisor enamelWANG Li-mei, YI Duo-zong, YANG Fa-cheng, LAN Hai551-5533Effect of filling techniques of composite resin on the shrinkage stress on the wall of box cavityLV Yi, ZHANG Wen-yan, ZHAO Xin-yi, LI Shi-bao554-5574Effect of platelet-rich fibrin (PRF) on the proliferation and differentiation of DPSCs in vitroLIU Nan-xia, ZHAO Yin-hua, ZHANG Min, CHEN Yong-jin558-563,5725Effects of advanced glycation end products on the osteogenic influence of WNT classic pathway in human periodontal ligament stem cellsCUI Xiao-xia, YANG Kun, WU Yan, DENG Chao, LIU Qi, JIN Yan564-568,6806A histological study of furcation perforation repair by matrix material NHAC in Beagle dog teeth: a histological studyHOU Hui-min, HOU Ben-xiang, WEI Shu-sheng, GE Li-hua569-5727Effect of fluor protector on demineralization of primary teeth enamel in acidic milk beveragesZHANG Wen-ru, XU Qiang, MENG He, WANG Lin573-57783D Finite element analysis of fiber post-core restorations for curved rootMA Xin-yang, WANG Wei-feng, WANG Fang578-5809Influence of different adherend materials and dimension on shear bond strength values in vitroZHANG Xiang, WANG Ying-jie, CHAI Zhi-guo, WANG Hui, CHEN Ji-hua581-58510The definitions of residual roots and crowns of molars and the classification of the defect degreesDUAN Jian-min, LI Hong-tao, TAN Jun586-59111A survey on oral health status and oral health behavior of 15-year-old students in GuangzhouYU Miao, JIANG Qian-zhou, WANG Min, WEI Wan-quan, WANG Wei-qi, HE Ji-wei, WU Sheng-xuan592-594,59112Scanning Electron Microscopic investigation on the cleaning ability of different root canal preparation instruments595-598,60113Clinical application of Mtwo nickel-titanium instruments in root canal therapy of aged patientsTANG Zhong-liang, WANG Fang, ZHU Li-jiang, HU Jiang-hong599-60114Progress in the research of dentin sialophosphoproteinHU Zhi-qiang602-60615The teaching reformation for the improvement of the ability of oral health education of undergraduates607-609,606 