1. Diagnosis and treatment planning in the three-dimensional era

2. Current biomechanical rationale concerning composite attachments in aligner orthodontics

3. Clear aligners: Material structures and properties

4. Influence of intraoral factors on optical and mechanical aligner material properties

5. Theoretical and practical considerations in planning an orthodontic treatment with clear aligners

6. Class I malocclusion

7. Aligner treatment in class II malocclusion patients

8. Aligners in extraction cases

9. Open-bite treatment with aligners

10. Deep bite

11. Interceptive orthodontics with aligners

12. The hybrid approach in class II malocclusions treatment

13. Aligners and impacted canines

14. Aligner orthodontics in prerestorative patients

15. Noncompliance upper molar distalization and aligner treatment for correction of class II malocclusions

16. Clear aligner orthodontic treatment of patients with periodontitis

17. Surgery first with aligner therapy

18. Pain during orthodontic treatment: Biologic mechanisms and clinical management

19. Retention and stability following aligner therapy

20. Overcoming the limitations of aligner orthodontics: A hybrid approach