The document discusses five factors that affect occlusal balance: condylar inclination, occlusal plane inclination, incisal guidance, cuspal inclination, and compensating curve. It explains that maintaining a balanced occlusion requires balancing these factors using Theilman's formula. If one factor such as incisal guidance is increased, another such as the compensating curve must also be increased to prevent posterior disclusion. Minimizing incisal guidance in complete dentures can help minimize imbalanced tipping forces.

1. 14. Hanau’s Quint Michael Hamada DDS Division of Advanced Prosthodontics, Biomaterials and Hospital Dentistry UCLA School of Dentistry This program of instruction is protected by copyright ©. No portion of this program of instruction may be reproduced, recorded or transferred by any means electronic, digital, photographic, mechanical etc., or by any information storage or retrieval system, without prior permission.

2. Hanau’s Quint Five Factors Affecting Occlusal Balance Condylar Inclination Incisal Guidance Occlusal Plane Inclination Compensating Curve Cuspal Inclination

3. Hanau’s Quint Inter-relationship of these five factors may be described by Theilman’s Formula In order to maintain a balanced occlusion: C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve C=Balanced Occlusion

4. C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

5. C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

6. When all five factors are in “balance” . . . C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

7. . . .“Balance” is maintained in excursives C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

8. When Incisal Guidance is increased . . . C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

9. When Incisal Guidance is increased . . . C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

10. . . . Posterior Disclusion will occur unless . . . C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

11. . . . Occlusal Plane Inclination, . . . C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

12. . . . Cuspal Inclination, . . . C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

13. . . . or Compensating Curve is Increased C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

14. Increasing the Compensating Curve C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Correcting Posterior Disclusion by

15. Monoplane Denture Occlusion C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Use of Flat Plane or 0º Posteriors

16. Monoplane Denture Occlusion C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Use of Flat Plane or 0º Posteriors

17. Monoplane Denture Occlusion C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Use of Flat Plane or 0º Posteriors

18. Monoplane Denture Occlusion C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Posterior Disclusion with 0º Teeth

19. May be corrected by “Balancing Ramps” C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Posterior Disclusion with 0º Teeth

20. Essentially increases Compensating Curve C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Posterior Disclusion with 0º Teeth

21. Alternate solution to maintaining “balance”. . . C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Posterior Disclusion with 0º Teeth

22. . . . is to decrease Incisal Guidance C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Posterior Disclusion with 0º Teeth

23. . . . is to decrease Incisal Guidance C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Posterior Disclusion with 0º Teeth

24. . . . is to decrease Incisal Guidance C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Posterior Disclusion with 0º Teeth

25. . . . is to decrease Incisal Guidance C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Posterior Disclusion with 0º Teeth

26. is minimized by minimizing Incisal Guidance C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve Posterior Disclusion with 0º Teeth

27. Balancing Ramp Addition (as before) or . . . C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve The minimal disclusion can be corrected by

28. . . . an increase in Occlusal Plane Inclination C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve The minimal disclusion can be corrected by

29. . . . an increase in Occlusal Plane Inclination C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve The minimal disclusion can be corrected by

30. Hanau’s Quint Of the five factors, the patient presents you with Condylar Inclination Occlusal Plane cannot be altered substantially since functional requirements dictate position C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

31. Hanau’s Quint Of the five factors, the patient presents you with Condylar Inclination Occlusal Plane cannot be altered substantially since functional requirements dictate position C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

32. Hanau’s Quint Within the confines of esthetics and phonetics, minimize Incisal Guidance in Complete Dentures to minimize inclined tipping forces Adjust remaining factors to maintain balance C = Condylar Inclination OccPlane x Incisal Guidance x Cuspal Inclination x CompCurve

33. Bilateral Balanced Lingualized Occlusion Working Side Centric Occlusion Protrusive Balancing Side