Charoemratrote C. The Uprighting Spring to Support an Anchorage During Canine Retraction in Class II Division 1 Malocclusion. Thai J Orthod [Internet]. 2022 Jun. 26 [cited 2024 May 18];12(1). Available from: https://he01.tci-thaijo.org/index.php/THAIORTHO/article/view/250553