Clear aligner treatment is a widely used and extremely popular treatment modality. The types of attachments that should be used and their optimal size, shape and location are the subject of debate among clinicians and in the literature. Different companies have different concepts of attachments. The present authors raise the question of whether so many attachments are truly necessary in all scenarios, outlining two cases that were treated without any attachments at all and seeking to explore the factors that led to their success. Schlagwörter: aligner sequence, attachments, simulation