1. 26. Posterior Palatal Seal Michael Hamada, DDS Lecturer 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.

3. The Peripheral Seal Tongue function Cheek and labial function

4. The Peripheral Seal Tongue function Cheek and labial function Seal is rarely achieved with the mandibular denture. Retention is more dependent on tongue position, floor of mouth posture and neuromuscular control.

5. The Peripheral Seal Cheek and labial function Palatal function Gravity

6. The Peripheral Seal Cheek and labial function Palatal function Gravity Posterior Palatal Seal

8. Palatal and Velar Anatomy Posterior Palatal Seal

9. Palatal and Velar Anatomy Posterior Palatal Seal

10. Palatal and Velar Anatomy Posterior Nasal Spine Nasopalatine Canal Velum

11. Palatal and Velar Anatomy Posterior Nasal Spine Velum Glandular tissue

12. Palatal and Velar Anatomy Posterior Nasal Spine Glandular tissue Velum

13. Palatal and Velar Anatomy Posterior Nasal Spine Velum Glandular tissue

14. Palatal and Velar Anatomy Posterior Nasal Spine Velum Glandular tissue

15. Palatal and Velar Anatomy Posterior Palatal Seal Velum Glandular tissue

16. Palatal and Velar Anatomy Posterior Palatal Seal Velum Glandular tissue

17. Palatal and Velar Anatomy Posterior Palatal Seal Velum Glandular tissue

18. Palatal and Velar Anatomy The Vibrating Area or Line The junction between the mobile and non-mobile portions of the soft palate

19. Palatal and Velar Anatomy The Vibrating Area or Line

29. Clinical Variants

30. Clinical Variants

31. Clinical Variants

32. Clinical Variants