Description

Preview the May 2023 AJO-DO Test HERE

Article 1

Comparison of mechanical properties of 3-dimen- sional printed and thermoformed orthodontic aligners, by Nic Shirey et al

After completing this article, the participant will have:

• An understanding of the mechanical properties of 3-dimensional (3D) printed compared with thermoformed orthodontic aligners.

Article 2

Stability of Class II malocclusion treatment with Class II elastics, by Guilherme Janson et al

After completing this article, the participant will have:

• An appreciation for the stability of Class II malocclusion treatment when using Class II elastics compared with headgear.

Article 3

The effect of maxillary first and mandibular second premolar extractions on the posterior Bolton ratio, by Taylor Geyer Holton et al

After completing this article, the participant will have:

• Familiarity with how the extraction of maxillary first and mandibular second premolars may influence orthodontic treatment.

Article 4

Interventions to facilitate the successful eruption of impacted maxillary incisor teeth because of the presence of a supernumerary: A systematic review and meta-analysis, by Jadbinder Seehra et al

After completing this article, the participant will have:

• An awareness of the evidence for the need to use orthodontic mea- sures to facilitate the successful eruption of impacted maxillary incisor teeth because of the presence of a supernumerary.