1Progress in the study of functional and anatomical char-acteristics of mandibular molar teeth and the application of alveolar ridge preservation in mandibular molar re-gionZHANG Hao-yun, SHI Yu-tong, HU Wen-jieSYMPOSIUM·ALVEOLAR RIDGE PRESERVATION641-645,6502Progress in the study of anatomical characteristics of maxillary molar teeth and the application of alveolar ridge preservation in maxillary molar regionWEI Yi-ping, XU Tao, ZHANG Hao-yun, HU Wen-jieSYMPOSIUM·ALVEOLAR RIDGE PRESERVATION646-6503Analysis of the soft and hard tissue contour changes after natural healing of extraction sockets and alveolar ridge preservationLI Li-man, ZHANG Hao-yun, HU Wen-jie, XU Tao, ZHAO Li-pingSYMPOSIUM·ALVEOLAR RIDGE PRESERVATION651-6564Evaluation of the effect of implant restoration after alveo-lar ridge preservationZHAO Li-ping, WEI Yi-ping, HU Wen-jie, XU TaoSYMPOSIUM·ALVEOLAR RIDGE PRESERVATION657-6625Study on the effect of concentrated growth factor combined with periodontally accelerated osteogenic orthodon-tics on periodontal soft and hard tissue reconstruction in patients of thin gingival phenotypeTAO Shan-yue, DA Hai-qin, FU Jun-bo, HAN Shuang, WANG LanORIGINAL CONTRIBUTION663-6696In vitro evaluation of casein phosphopeptides-amorphous calcium phosphate combined with Duraphat on the remineralization of early enamel caries using quantitative light-induced fluorescenceWU Xin-er, LIU Jin, LI Shu-fang, LI Jiao-jiaoORIGINAL CONTRIBUTION670-6757Study on the prevalence of root caries and the effects of pH value and calcium and phosphorus ion concentra-tion of gingival crevicular fluid on it in type 2 diabetes mellitus patientsJIA Lu-yao, LI YA-jing, YAN LuORIGINAL CONTRIBUTION676-6838Study on the influence of 3D printing zirconia patterned design and surface pretreatment methods on adhesive performanceYIN Lu, CHENG Qian-huang, CHEN Zhong, LIN YaoORIGINAL CONTRIBUTION684-6909A visualized analysis of research hotspots and trends in graduate dissertations related to orthognathic surgery based on bibliometricsZHAO Wen-li, LUO You-ming, BAI Yuan-yan, REN Ming-jun, LIU Yao, JIANG NanCOLUMN OF STOMATOLOGY EDUCATION AND RESEARCH691-698,70310Discussion on the importance of writing case report and literature review in improving the quality of periodon-tal continuing educationHUANG Zhen, HU Wen-jieCOLUMN OF STOMATOLOGY EDUCATION AND RESEARCH699-70311Practice and summary of the national continuing education program"Standardized Training for the Diagnosis and Treatment of Oral Diseases of Pregnant and Lactating Women"based on core competencyMA Lin, JING Quan, XIE Yan, ZHANG Jie, WAN KuoCOLUMN OF ORAL HEALTH FOR ALL704-70812Research progress of piezoelectric hydrogel materials in bone tissue engineeringLI Meng, LIU Xiao-fei, LI Lu-ying, ZHANG Wei, HU Xian-tong, MA Chu-fanREVIEW709-71513Research progress of oral mesenchymal stem cells in bone remodelingZHANG Ning, HU Yue, CAO Nan-jue, LIU Ke-da, MENG Yuan, WANG WeiREVIEW716-72114Research advances in digital technology assisted detection of cracked teethZHANG Ai-di, ZENG Han-rou, LI Chang-fang, WANG WeiREVIEW722-726,73215Research advances in the application of 3D facial scanning technology in clinical orthodonticsWENG Zhuo-yue, WU Meng-jieREVIEW727-73216Research progress in application accuracy of digital intraoral scanning in dental implantationLIN Yu-xuan, ZHANG Si-hui, CHEN JiangREVIEW733-73817Research advances on implantation strategy for patients with head and neck cancer radiotherapyDAI Yu-wei, LI Jie, YANG Hao-nan, WU Yi-qun, MENG JianREVIEW739-74318Research progress in the retention form design of endocrown and its effect on the fracture resistance of the teethZHENG Mei-ling, ZHANG Chang-yuanREVIEW744-74919Construction and application progress of finite element model of temporomandibular jointsCHEN Min-er, TANG Liang-chen, CHEN Yi-fan, XIA Chen-long, WU Meng-jie, WANG Xiao-ling, LI Zhi-yongREVIEW750-75420Rapid diagnosis and management of dental tissue diseases based on patients'complaintsZHAI Sha-fei, GUO Fang, WU Zhong-ming, LIANG Bin, LIU Chang-kui, HU Kai-jinCOLUMN OF CONTINUING MEDICAL EDUCATION · RAPID DIAGNOSIS AND MANAGEMENT OF COMMON DISEASES IN ORAL CLINICS ( 2 )755-758,763 