%0 Case Reports %T Adenomatoid odontogenic tumour: A rare threat to orthodontic treatment planning. %A Han L %A Downing A %A Farr D %A Dasgupta K %A Stewart D %J J Orthod %V 46 %N 3 %D 09 2019 %M 31230507 暂无%R 10.1177/1465312519856357 %X This case report aims to increase awareness of how an adenomatoid odontogenic tumour (AOT) can present in a similar fashion to a dentigerous cyst and the importance of accurate histopathological diagnosis. In this case, the AOT resulted in loss of the upper left permanent canine in a patient who already had a congenitally absent upper left second premolar, compromising the original orthodontic treatment plan.