1Classification and clinical features of maxillary defectsSUN Yan-fang, ZHAO Yi, LIU BingMultidisciplinary treatment for maxillary defect519-5242Surgical reconstruction of maxillary defectsWU Tian-fu, LIU BingMultidisciplinary treatment for maxillary defect525-5303Prosthodontic reconstruction of maxillary defectsZHAO Yi, BAI Yi, WANG Yi-ningMultidisciplinary treatment for maxillary defect531-5354Evaluation of the function and morphology after rehabili-tation of maxillary defectsXIONG Xue-peng, ZHAO Yi-fangMultidisciplinary treatment for maxillary defect536-5405Design and implementation of integrated course of periodontologyKANG Jun, HU Wen-jie, MENG Huan-xin, CHEN Yan, SI Yan, RONG Wen-sheng, ZHAO Yi-bingCOLUMN OF STOMATOLOGY EDUCATION AND RESEARCH541-544,5496Evaluation and analysis of multidisciplinary grand rounds course in periodontology based on questionnaire sur-veyCAO Jie, ZHONG Jin-sheng, HU Wen-jie, LIU Yun-song, LI Li-manCOLUMN OF STOMATOLOGY EDUCATION AND RESEARCH545-5497Exploration of standardized training for dental implantology specialistsJIANG Lu-lu, GAO Jing, ZHAO Bao-hongCOLUMN OF STOMATOLOGY EDUCATION AND RESEARCH550-5528Preliminary study on stress variation trend of distal movement of maxillary canine with bracket-free invisible appliance based on three-dimensional finite element analysisQIN Si-wen, HAN Xue, XU Yu-chan, MA Xuan, CHENG Jie, QIAO Xiang-chen, ZHOU Yu-hong, GUO Wei-huaORIGINAL CONTRIBUTION553-5599Evaluation of treatment outcomes of premolar extraction cases with Damon Q self-ligating bracket and MBT bracket using ABO-OGS indexSONG Xin-yu, QIAN Yu-fenORIGINAL CONTRIBUTION560-56410Analysis of influencing factors of nasopalatine canal perforation in virtual immediate implant palcement in the maxillary central incisors regionYANG Miao-miao, MA Yong-qing, WANG Zhan-xin, CHEN Jing-wen, QU ZheORIGINAL CONTRIBUTION565-568,57411Clinical effect and cone-beam CT quantitative assessment of pulp revascularization in the treatment of imma-ture permanent teeth with pulp necrosis and periapical lesionsLI Jia-yang, ZHOU Meng-qi, WEI Xiao-lingORIGINAL CONTRIBUTION569-57412Three dimensional measurement of root resorption after distalization of total lower dentition Combined with mi-cro-implant anchorageXIONG Zai-dao, ZHOU Pei-gang, FENG Hai-xia, CHEN Xiu-chunORIGINAL CONTRIBUTION575-57913Study of the sterilization and cytotoxicity of photodynamic therapy mediated by a novel composite photosensi-tizer in vitroZHANG Ping, WU Ying-tao, LUAN Xiu-ling, DU RuiORIGINAL CONTRIBUTION580-585,59014Difference in the pain in orthodontic treatment with fixed appliances and clear aligners:a Meta-analysisAN Ran, YANG Xin-wei, LEI LangORIGINAL CONTRIBUTION586-59015Impact of intraoral stents on oral complications of head and neck radiotherapy:a Meta-analysisJIANG Yu-ya, LI Yang, YAN Jing, YANG Mi, WANG Kong-cheng, WANG Juan, WU Guo-feng, SUN Fang-fangORIGINAL CONTRIBUTION591-59516Effect of orthognathic surgery on quality of life in patients with dentomaxillofacial deformitiesZHANG Wei-qian, XU Ming-han, XIE Yuan-yuan, DOU Sha-sha, BAI Xiao-fengORIGINAL CONTRIBUTION596-59817Research progress in peri-implant microbes and their immune responsesZHANG Yan-jun, YUAN Quan, YANG Xing-meiREVIEW599-60318Research progress in the role of pyroptosis in the development of periodontitisJIANG Xiao-jian, LEI Li-hong, SUN Jian-wei, CHEN Li-liREVIEW604-60919Research progress in the application of the microfluidic chip in dentistryZHANG He-xuan, HOU Ben-xiangREVIEW610-61420Application progress in submental island flap for the reconstruction of oral and maxillofacial defectsXIANG Dan-wei, SHI Hai-bo, SONG Li-na, WU Chun-yue, LIU Qi-linREVIEW615-620 