@article{Quan Jing:23, author = {Quan Jing,Kuo Wan,Xiao-jun Wang,Lin Ma}, title = {Effectiveness and Safety of Computer-controlled Periodontal Ligament Injection System in Endodontic Access to the Mandibular Posterior Teeth}, publisher = {Chinese Medical Sciences Journal}, year = {2014}, journal = {Chinese Medical Sciences Journal}, volume = {29}, number = {1}, eid = {23}, numpages = {4}, pages = {23}, keywords = {periodontal ligament injection;endodontic access;irreversible pulpitis}, url = {http://cmsj.cams.cn/CN/abstract/article_205.shtml}, doi = {10.1016/S1001-9294(14)60019-5} }