Pre-fabricated attachments for molds

A method comprising:

• generating a digital model of a mold associated with a dental arch of a patient, the mold comprising a plurality of teeth extending from a first distal end of the dental arch to a second distal end of the dental arch, the mold further comprising one or more mold features configured to engage with a pre-fabricated attachment, wherein an orthodontic aligner is to be formed over the plurality of teeth of the mold, the plurality of teeth of the mold being shaped to correspond to a plurality of tooth-receiving cavities of the orthodontic aligner;
• causing the mold to be generated based on the digital model;
• and
• causing the mold to removably engage with the pre-fabricated attachment via one or more attachment features of the pre-fabricated attachment and the one or more mold features.

A non-transitory computer-readable storage medium storing instructions which, when executed, cause a processing device to perform operations comprising

• generating a digital model of a mold associated with a dental arch of a patient, the mold comprising a plurality of teeth extending from a first distal end of the dental arch to a second distal end of the dental arch, the mold further comprising one or more mold features configured to engage with a prefabricated attachment, wherein an orthodontic aligner is to be formed over the plurality of teeth of the mold, the plurality of teeth of the mold being shaped to correspond to a plurality of tooth-receiving cavities of the orthodontic aligner;
• causing the mold to be generated based on the digital model;
• and
• causing the mold to removably engage with the pre-fabricated attachment via one or more attachment features of the pre-fabricated attachment and the one or more mold features.