1Application and option of lateral femoral circumflex artery system perforator flaps in reconstruction of oral and maxillofacial defectSHEN Yi, SUN JianSYMPOSIUM641-6472Oral and maxillofaciai defects reconstruction with deep inferior epigastric perforator flapPENG Xin, ZHANG Wen-boSYMPOSIUM648-6513@@651,656,678,7044Application of submental artery island flap and perforator flap in reconstruction of oral and maxillofacial defectLIU Fa-yu, SUN Chang-fu, NI You-kang, LU PingSYMPOSIUM652-6565Clinical study of pedicled perforator flaps in repairing oral maxillofacial soft tissue defectsLI Zai-ye, JIANG Can-hua, CHEN Jie, MAO Xiao-he, LI Ning, GUO Feng, HUANG Long, JIAN Xin-chunORIGINAL CONTRIBUTIONS657-6616Anatomic study of medial sural artery perforator flapCUI Qiu-ju, MAO Chi, PENG Xin, ZHANG LeiORIGINAL CONTRIBUTIONS662-6657Clinical analysis of hyaluronic acid gel and Cydiodine in periodental initial therapy for moderate and severe chronic periodontitisPAN Chun-ling, ZHAO Hai-jiao, SONG Jia, SUN Shang-min, CHANG Chun-rong, PAN Ya-pingORIGINAL CONTRIBUTIONS666-6698Study on the expression of the FHIT and SMAD4 in Hacat and dysplastic oral keratinocyte cells under the stimulation of arecolineXIA Lu-lu, GAO Yi-jun, YIN Xiao-minORIGINAL CONTRIBUTIONS670-6739Evaluation of orthodontic treatment outcome in patients undergoing extraction of mandibular first molar with PAR index and cephalometricsWANG Qing-lin, HE Yong-jian, ZHOU Shao-yun, MA Ming-yu, LI Rong-xiaORIGINAL CONTRIBUTIONS674-67810Evaluation of the apical sealing ability of iRoot FSOU Hai-qiang, LIN Zheng-meiORIGINAL CONTRIBUTIONS679-68211Peripheral nerve protection during the treatment for vascular malformations in maxillofacial region by using electrochemical therapy and pingyangmycin injectionXI Shan-long, XUE Lei, GUO Zhong-jun, WANG Xu-kaiORIGINAL CONTRIBUTIONS683-68612Levels of cytokines interleukin-8 in gingival crevicular fluid in chronic periodontitis: a meta analysisFENG Ping-zhen, BAO Sen-zhuORIGINAL CONTRIBUTIONS687-69113Research advance of machined composite materialsLIU Li-yang, QIU Li-hongREVIEW692-69614@@697-70015@@701-704 