This work was supported by grants from the National Natural Science Foundation of China (No. 30772450, No. 81170929 and No. 30873322), the Open Project Program of State Key Laboratory of Natural Medicines, China Pharmaceutical University (No. SKLNMKF201214). Conflict of interest: none.
Background The pain caused by orthodontic treatment has been considered as tough problems in orthodontic practice. Danggui-shaoyao-san (DSS) is a traditional Chinese medicine (TCM) prescription which has long been...