1Endodontic treatment for deciduous teethWANG Xiao-jingSYMPOSIUM513-5172Vital pulp therapy for immature permanent toothWANG JunSYMPOSIUM518-5213Dental pulp revascularization of immature permanent teethBAO Zhi-fan, CHEN XuSYMPOSIUM522-5264Study of condyle chondrocyte cell death under circumstances of high TNF-α concentrationSUN Yu-huan, ZHAO Qian, HE Dong-mei, ZHANG PingORIGINAL CONTRIBUTION527-5315Histologic observation of periapical periodontitis and regenerative endodontic treatment in dog's immature permanent teethCHEN Min, LIU Xue-mei, BAO Zhi-fan, LIU Yao, JIANG Li-ming, CHEN XuORIGINAL CONTRIBUTION532-5356Comparison of the X-ray and pathological biopsy of three kinds of end-filling materialsDU Xing-hua, SHEN JingORIGINAL CONTRIBUTION536-5407Clinical observation on the short term effect of Pd-Ag resin-bonded bridge in restoring single posterior tooth loss in maxillaCHEN Xi-wen, ZHOU Jin-ru, GE Yan-ping, LIU Wei, ZHAO Jie, ZHU Zhi-minORIGINAL CONTRIBUTION541-5458Comparison of periodontal health of patients during invisible bracketless treatment in two different waysGU Min, CHEN Wen-jing, LIU Yan, ZHAO Lu, CHEN Yu-rong, ZHANG YanORIGINAL CONTRIBUTION546-5489Relationship between the curve of Spee and craniofacial morphologyCUI Min-juan, HU Sheng-shi, CHANG XinORIGINAL CONTRIBUTION549-55110Evaluation of clinical results of sinus floor elevation with simultenous dental implantation (report of 79 cases)BAI Quan-min, NI Feng, XIAN Zha-genORIGINAL CONTRIBUTION552-55511Clinical effect evaluation of all-ceramic crowns restoration fabricated by 3shape Trios systemHUANG Wan-yi, ZHAN De-songORIGINAL CONTRIBUTION556-558,56212Study on the effect of chitosan antibacterial film spray on healing of intraoral incisionWANG Xi, ZHANG Ying, GUAN Li-yan, JIANG Ai-jia, CUI DanORIGINAL CONTRIBUTION559-56213Clinical application of unconventional tooth extraction in orthodontic treatmentYANG LiREVIEW563-56614Research progress of pathogenic effect of Porphyromonas gingivalis on chronic periodontitisZHAO JianREVIEW567-57115Research advances in extraction of mandibular third molarTANG FeiREVIEW572-57416Removal of fractured endodontic instruments lying beyond the apical foramen:report of a caseWANG Chu-yu, XUE Ming, QIU NingCASE REPORT575-576 