1EGF/EGFR/ErbB2 regulates MMP-20 expression in mouse ameloblastsQU Zheng, WANG Yu-min, LI Bo-han, XU Zhen-zhen, YUAN Jie, GAO Yu-guang417-4232The occluding effect of ammonium hexafluorosilicate on human dentinal tubules-a SEM studySHEN Si-min, CHEN Xin-mei, WANG Pan-pan, SONG Deng-xian, CHEN Jin-huan424-427,4673Comparative study on microleakage and compressive strength of four fissure sealantsCAI Ya, SHEN Jia-ping428-4314An in vitro evaluation of the effects of three one-step self etching adhesives on microleakage of resin compositesYANG Yuan-Bo, DONG Qing, GU Jian-Qi, CHEN Hong-Wei, XU Yan-Li432-4355Effects of +Gx exposure after simulated weightlessness on iNOS and COX-2 expression in gingiva of rhesus macaqueHONG Biao, SHI Sheng-gen, SHI Liang, ZHANG Jian-zhong, JING Qing-ping, BAO Bo, TANG Chu-hua436-4416MMP-9 expression in orthodontically pressure-loaded side of alveolar bone in ovariectomized ratsLI Jing, WANG Ya-nan, WANG Jie, DONG Fu-sheng, LIU Li-li, MA Wen-sheng442-4457Cariogenicity of high fructose corn syrup: an experimental study on ratsXIAO Tian-ming, XIA Wen-wei446-4498The effect of basic fibroblast growth factor on the biologic activity of human dental pulp cellsZHANG Jin, LIU Yan-li, MENG Qiu-ju, GUO Zhi-yuan450-4539Evaluation of the effectiveness of different retreatment instruments for gutta-percha removal with or without chloroform in vitroLIU Ying, LI Shu, CHEN Liang454-45810Effects of root canal preparation and filling methods on apical microleakageYANG Tao459-461,45811Comparison of the effects of two prosthodontic designs for 112 mandibular molars after hemisectionSUN Jing462-46412Clinical effects of modified surgical crown lengtheningZHANG Yan-yan, CHEN Cai-zha, DENG Yan, YANG Xu, HUANG Ji-hong, GAO Li-ping465-46713Pain relieving effects of auricular point pressing during orthodontic treatmentLI Jiang468-47014Family factors of caries in 6-year-old children in Guangzhou City, Haizhuqu DistrictLI Man-yu, ZHANG Meng-pa, YUAN Xian-jun471-47315Targeting Fas/FasL signaling pathway in bone metabolism disorderSHAO Bin-yi474-477,48016Extracurricular research improves innovation ability of undergraduate studentsYANG Jing-yi, XIE Cheng, YE Xiao-long, LI Shao-qing, SUN Han-tang478-480 