A set of stabilizer aligners includes an upper stabilizer aligner for an upper dental arch of a patient and a lower stabilizer aligner for a lower dental arch of the patient. The upper stabilizer aligner comprises a first set of cavities that conform to a dentition of the upper dental arch and a first set of stabilizing features. The lower stabilizer aligner comprises a second set of cavities that conform to a dentition of the lower dental arch and a second set of stabilizing features. Stabilizing features in the second set of stabilizing features are configured to contact opposing stabilizing features in the first set of stabilizing features. The upper stabilizer aligner and the lower stabilizer aligner prevent jaw movement of the patient while the upper stabilizer aligner is worn on the upper dental arch, the lower stabilizer aligner is worn on the lower dental arch, and the upper stabilizer aligner is engaged with the lower stabilizer aligner.