Class II malocclusions that are treated with extraction of 4 premolars require significant patient compliance and anchorage control to ensure a successful result.1-9 However, not all patients comply as required, and anchorage can be difficult to control. Therefore, poor results can be expected, primarily in correcting an anteroposterior (AP) discrepancy. 1,2,4,10,11 In this case report, we present the retreatment of a patient with a Class II malocclusion who was initially treated with 4 first premolar extractions, but, at the end, the same amount of Class II AP discrepancy remained. This unusual retreatment consisted of extracting the maxillary second premolars to correct the large overjet. The mechanotherapy and the pros and cons of this approach are discussed.