1Application of lower limb perforator flap in reconstruction of oral and maxillofacial defectsHE Zheng, ZHANG LeiSYMPOSIUM705-7102Application of peroneal artery perforator flap in reconstruction of soft tissue defects after oral cancer ablationWEI Jian-hua, LEI De-linSYMPOSIUM711-7143Application of ulnar forearm perforator flap in reconstruction of oromaxillofacial head and neck defectsWANG Shuai, DUAN Wei-yi, XU Zhong-fei, SUN Chang-fuSYMPOSIUM715-7194Minimally invasive harvest of suprafascial anterolateral thigh flap for soft tissue reconstructionWANG Fei, LI Ning, JIANG Can-hua, GUO Feng, CHEN Xin-qun, Su TongORIGINAL CONTRIBUTIONS720-7235Effect of removable and fixed retainer on periodontal status and retention effect: a Meta-analysisZHANG Yao, LI Jiao, ZHAO Yun-he, LEI LangORIGINAL CONTRIBUTIONS724-7316Effect of arecoline on the permeability of Hacat cell epithelia model and the regulation of calcium ionCHEN Rong, HOU Dong-lan, YIN Xiao-min, GAO Yi-junORIGINAL CONTRIBUTIONS732-735,7397Effect of bimaxillary bite plate combined with protraction and class Ⅲ traction in the treatment of mixed dentition of class Ⅲ malocclusionLIU Hao, ZHANG Ting, ZHANG LiangORIGINAL CONTRIBUTIONS736-7398Clinical application of maxillary sinus lifting, bone graft, and simultaneously placement of implants in severely atrophic maxillaeJIANG Jian-ping, ZHAN Yan-wu, JI Li-naORIGINAL CONTRIBUTIONS740-7429Application and research situation of toluidine blue in oral medicineYAN Su-qin, ZHUANG De-shu, BI Liang-jiaREVIEW743-74710@@747,75311Research advance in the relationship between mental and psychological factors and several common oral mucosal diseasesSONG Li-ming, LIN Xiao-pingREVIEW748-75312Research progress in the relationship between temporomandibular joint anterior disc displacement and dentofacial deformities in juvenilesZHU Hui-min, SONG Xin-yu, HE Dong-mei, YANG Zhi, SHAN Yu-huaREVIEW754-75913@@760-76314@@764-76515@@766-768 