Methods and apparatuses for applying to elicit desired tooth movement, e.g., to align teeth, including one or more attachments that each include a base region that may rigidly attach to a tooth, a top region that may couple with an orthodontic appliance, and one or more elastically deformable biases that allows the top region to move relative to the base region force is applied to the top region. The attachment may apply a restoring force to move one or more teeth when the top region is deformed.