1Upper airway management in orthodontics across life spanLIU Yue-huaSYMPOSIUM65-692Diagnosis and management of children malocclusion accompanied by OSAHS-multidisciplinary cooperationZHAO Ting-ting, DENG Li-jia, HE HongSYMPOSIUM70-72,753Application of 3D printing technology in the treatment of OSAHSSU Zhong-ping, YU BoSYMPOSIUM73-754Comparative study of two-dimension and three-dimension airway measurement in OSAHS childrenDENG Li-jia, ZHAO Ting-ting, HE HongORIGINAL CONTRIBUTIONS76-78,835Evaluation of pharyngeal space in different growth pattern of Class Ⅱ skeletal malocclusionYANG Li, DENG Hai-yan, ZHANG Hong-yu, HAN Bei-lei, LIU Hai-xiaORIGINAL CONTRIBUTIONS79-836Evaluation of the relationship between the injury time of traumatic discolored teeth and the efficacy of intracoronal bleachingJIANG Ai-jia, ZHANG YingORIGINAL CONTRIBUTIONS84-877Comparative study on the effect of miniscrew implants and transpalatal arch anchorage in the control of bi-maxillary dentoalveolar in adultsMENG Qiu-ju, WANG Lei-chang, DU XiORIGINAL CONTRIBUTIONS88-918Comparative study of orthodontic pain due to the application of the invisalign and Damon Q self-locking brackets in adult female patientsLI Yan-zhao, TAN Jia-li, ZHENG Yu-ting, LI Su-mei, MO Jun-xiangORIGINAL CONTRIBUTIONS92-949Analysis of risk factors associated with enamel demineralization after fixed orthodontic treatmentZHENG Min-qian, HUANG Peng-cheng, ZHANG Duan-qiangORIGINAL CONTRIBUTIONS95-9710Efficacy of Er∶YAG laser combined with different pulp capping agents for direct pulp capping in primary teeth:a randomized clinical trialMA Xiao-hongORIGINAL CONTRIBUTIONS98-10111Correlation study of the cervical skeletal abnormalities in patients with the second premolar congenital missingCHEN Yan-na, CHEN Lan-yue, LIU YiORIGINAL CONTRIBUTIONS102-10412Clinical research of the upper labial impacted canines by modified Nance archLIU Li, MENG Yuan, LIU Ji-yan, CHEN Zeng-liORIGINAL CONTRIBUTIONS105-10713Research advances of the relationship between gelatinases and pulpitis as well as apical periodontitisLI Xiao-lin, QIU Li-hongREVIEW108-11214Research progress of IL-22 in oral diseasesLYU Yan-ling, LIANG Wen-hongREVIEW113-11615Research on cytotoxicity of composite resin dental materialsCHEN Xiu-chun, ZHANG Zhi-min, ZHANG Ya-qi, HONG Li-hua, ZHENG Peng, LI Wen-yueREVIEW117-12116Research progress of accelerating orthodontic tooth movementDU Ting-ting, LI Jing, DU He-ling, CHENG Meng, ZHANG TongREVIEW122-12617@@127-128 