1Application and prospect of laser therapy in periodontal diseaseDING Yi, YANG HengSYMPOSIUM193-1982The application of laser in endodonticsHE Wen-xi, LIU Ning-ning, HE Xin-yaoSYMPOSIUM198-2023Oral laser application in dental implantologyLI QianSYMPOSIUM203-2084Research and clinical applications of Er∶YAG laser treatment in pediatric dentistryZHANG SunSYMPOSIUM209-2135A clinical retrospective study of implant restoration in posterior maxilla with different operative methods of maxillary sinus floor liftingORIGINAL CONTRIBUTIONS214-2186The application of BaTiO3 piezoelectric ceramic coating in mini-implant anchorage: a pilot study on dogsZHAO Ming-li, LIU Fu-lai, ZHANG Hai-jun, YANG Tian-tian, HUA Yi-fengORIGINAL CONTRIBUTIONS219-221,2257Effects of radiofrequency thermocoagulation guided by CT-image combined with neurophysiological tests in the treatment of primary trigeminal neuralgiaZHAO Lin, WAN Cheng-fu, SONG TaoORIGINAL CONTRIBUTIONS222-2258Three-dimension finite element analysis of the influence of various porcelain thickness on the stress distribution of all-ceramic crownsLI Bing, WU Xiu-ping, WU Ting-ting, WANG Jian, LUO Xiao-jinORIGINAL CONTRIBUTIONS226-2289An experimental study on indirect injury of periodontal membrane caused by maxillofacial impact injuryZHOU Jian-hong, REN Chang-qunORIGINAL CONTRIBUTIONS229-231,23510Expression of integrin β1 in experimental periapical lesionsYAN Lu, FU Yue, SUN Shang-min, YU Jing-taoORIGINAL CONTRIBUTIONS232-23511Analysis of reasons and timing for the impacted third teeth extraction surgery: a report of 200 casesZHANG Shu-yu, WANG Yong, XU YingORIGINAL CONTRIBUTIONS236-23912Study on the fracture resistance of polymer ceramic fiber post-core compared with that of glass fiber post-coreBRIEF ORIGINAL CONTRIBUTIONS240-24113Evaluation of the effect of PathfileTM for machine combined with ProTaper for hand nickel-titanium instrument in preparing molar narrow root canal in 125 casesLI Xin-yan, ZHENG Shu-mei, FAN Wei-weiBRIEF ORIGINAL CONTRIBUTIONS242-243,24714Oral myofunction and openbiteCHEN Xiao-minREVIEW244-24715Research progress about the relationship of catechol-O-methyltransferase with chronic pain in temporomandibular joint disordersFAN Ya-ru, LIU Hai-xiaREVIEW248-25116Research progress of the width of attached gingival and its clinical meaningLIU ShuoREVIEW252-25417Experience in using substitute materials for rubber base adhesiveEXPERIENCE EXCHANGE255-256 