1Evaluation of preoperative orthodontic treatment from an orthognathic surgery viewYANG Ming-liangSYMPOSIUM257-2602Orthodontic orthognathic treatment for skeletal class Ⅲ malocclusion under precision medicineZHAO Zhen-jin, ZHENG Xue-song, WANG Li-ping, ZHAO Rui, LIU ShuaiSYMPOSIUM261-2653Essential summary of clinical application in orthodontic treatment and orthognathic surgeryLIU Lin, SUN Da-bao, ZHANG Xia-ruiSYMPOSIUM266-2694Influence of direct laser metal sintering implants on the early stages of osseointegration in diabetic mini-pigs.TAN Nai-wen, ZHANG Si-jia, WEI Hong-bo, XU Xiao-ru, LIU Xiang-wei, REN Shuai, ZHOU Yu-chao, SONG Ying-liangORIGINAL CONTRIBUTIONS270-2735Clinical study of music therapy for children with dental fearWANG Yi-zhu, LI Rui, CHANG Ping, LYU Yan, LI Xiao-guang, WEN Li, LIANG Yi-ran, YUAN Yi-fang, GUO BinORIGINAL CONTRIBUTIONS274-2786Single crown restoration with 3 shape Trios scanner and 3D printing technologyHUANG Wan-yi, JIANG Mu-zhou, ZHAN De-songORIGINAL CONTRIBUTIONS279-2827Effect of bioactive hyaluronic acid combined with minocycline hydrochloride on the antibacterial function of Porphyromonas gingivalisCHEN Fei, ZHUANG De-shu, ZHANG Hong-bo, LUAN Xiao-min, BI Liang-jiaORIGINAL CONTRIBUTIONS283-2868Effect of different surface treatment for the hybrid ceramic on the bonding strength of adhesive resinZHU Jia, LIAO LanORIGINAL CONTRIBUTIONS287-2909Influence of Porphyromonas gingivalis and Treponema denticola in gingival crevicular fluid of patients with aggressive periodontitis on organic acidSU Juan-juan, XUE PengORIGINAL CONTRIBUTIONS291-293,29710Effect of combined therapy of traditional Chinese medicine and western medicine on burning mouth syndromeWANG Yu-zhen, SHI Wei-wen, CHEN Xiao-hua, LIU Xue-mei, YI Li-renORIGINAL CONTRIBUTIONS294-29711Clinical analysis of successful closed traction for maxillary impacted canineZHAO Zhen-jin, ZHAO Rui, ZHENG Xue-song, WANG Li-ping, LIU ShuaiORIGINAL CONTRIBUTIONS298-30012Clinical observation on adolescents with severe crowded malocclusion treated with PASS appliance Anchorage Control techniqueLI Feng-xia, WANG Jun, WANG Jin-yu, HAO Lan-qing, ZOU Jing, ZHOU Xiao-long, HE Wang-gang, WANG Gao-li, XIE Rui, LI Ting-ting, ZHANG Yi-lingORIGINAL CONTRIBUTIONS301-30413Preliminary clinical study of silicone dressing to reduce wound scar in the maxillofacial-head and neck regionsSUN Chao, SUN Jian, LIANG Li-qing, LI Ya-li, CHEN Li-qiang, CHEN ChenORIGINAL CONTRIBUTIONS305-30814Effects of ligation and bracket design on the surface of orthodontic wireWU Chun-xiao, GAO Wen-li, DAI Yu-ting, LUO Hui-fang, MI Cong-boORIGINAL CONTRIBUTIONS309-31215Research progress of the clinical treatment for child dental fearWANG Yi-zhu, LYU Yan, LI Xiao-guang, GUO BinREVIEW313-316,32016Research progress of periodontal therapy and orthodontic treatment effectSUN Fang-fang, LIU LinREVIEW317-320 