{Reference Type}: Case Reports {Title}: A novel removable appliance for canine retraction: a case report. {Author}: Smorthit K;Little R; {Journal}: J Orthod {Volume}: 49 {Issue}: 3 {Year}: 09 2022 暂无{DOI}: 10.1177/14653125221076860 {Abstract}: This case report outlines the use of a modified Leighton's retractor as a method for canine retraction in a patient with severe hypodontia, a history of aggressive periodontitis with tooth loss and idiopathic root resorption affecting multiple teeth. Treatment involved an upper removable appliance in combination with a lower sectional fixed appliance with the aim of improving aesthetics and function for the patient, whilst balancing the need to minimise treatment duration and modify treatment mechanics to reduce the orthodontic risks.