1Selection and application of staining methods in undecalcified boneand dental implant grinding slice technologyWANG Dong-sheng, LV Yan, WANG XingBASICAL TESEARCH321-3242Differentiation of mouse induced pluripotent stem cells into dental epithelial cells in vivoLIU Li, SONG Yuan-li, WANG Li-ying, NING Fang, LIU Ji-yanBASICAL TESEARCH325-3283Effect of different polishing techniques on the surface roughness of dental ceramic surfaceREN Hui, SONG Xin, CAI Xiao-tong, TANG Wei-fengBASICAL TESEARCH329-3334Clinical observation of immediate reconstruction of lower lip defect after cancer resection using the upper lip slide Z shaped flapCHANG Shi-min, ZHANG Ning, HAN Pei-yanAGED ORAL AND MAXILLARY SURGERY334-3365The effect of whole body disease on mandibular third molar extraction in the elderlyWANG Wei-li, CHANG Ying, MA Jie, CHENG Mei-li, GONG LinAGED ORAL AND MAXILLARY SURGERY337-3416@@342-3437In vitro research of microleakage of three filling materials in the patients with root cariesSUN Hao-hai, WANG Yi-jingPROSTHODONTIC MATERIALRESEACH344-3478Inspiration of the dental residency training innovation by United States education systemXING He-lin, YANG Guo-dongORAL MEDICINE EDUCATION348-3519@@352-354,35910@@355-35911@@360-362,35112@@363-36613@@384