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VOLUME 21 , ISSUE 12 ( December, 2020 ) > List of Articles

CLINICAL TECHNIQUE

A Novel Functional Swallow Method to Establish the Posterior Palatal Seal during the Maxillary Edentulous Final Impression: A Case Report

Sweekriti Mishra, Suma Janya, Babashankara Alva

Citation Information : Mishra S, Janya S, Alva B. A Novel Functional Swallow Method to Establish the Posterior Palatal Seal during the Maxillary Edentulous Final Impression: A Case Report. J Contemp Dent Pract 2020; 21 (12):1404-1407.

DOI: 10.5005/jp-journals-10024-2988

License: CC BY-NC 4.0

Published Online: 13-04-2021

Copyright Statement:  Copyright © 2020; The Author(s).


Abstract

Aim and objective: To propose an alternate, reliable, and easy-to-use functional swallow method for establishing the posterior palatal seal. Background: Accurate registration of the posterior palatal seal is crucial to the success of the maxillary complete denture. The conventionally used functional “Ah” technique may not be reliable at times to record the posterior palatal seal, hence compromising the retention of the maxillary complete denture. Case description and technique: A 70-year-old female patient requiring complete dentures presented with an unusually tense soft palate during the phase of posterior palatal seal development. The soft palate did not relax and remained in a superior position when the “Ah” functional method was used to record the seal. The posterior palatal seal area could not be compressed sufficiently during border molding, preventing the formation of an adequate seal. Hence, a new functional technique was devised to relax and displace the soft palate for developing an effective seal. This case report describes a novel and reliable method of displacing the posterior palatal seal area with a low-fusing compound by utilizing the patient's functional swallow position. Conclusion: The functional swallow method can be used effectively as an alternative and reliable method to obtain a consistent posterior palatal seal. Clinical significance: The functional swallow method of developing the posterior palatal seal is simple, less demanding on the clinician, and can save chairside time. It also helps in an easy transfer of the demarcated posterior palatal seal area to the custom tray. The method lets the dentist be in charge of developing the seal rather than relying on the arbitrary cast scrapping by the technician. Also, the seal can be achieved by employing commonly used materials.


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  1. Maxillary complete denture posterior palatal seal: variations in size, shape, and location. J Prosthet Dent 1973;29(3):256–261. DOI: 10.1016/0022-3913(73)90004-8.
  2. A comparison of the retention of complete denture bases having different types of posterior palatal seal. J Prosthet Dent 1973;29(5):484–493. DOI: 10.1016/0022-3913(73)90025-5.
  3. The posterior palatal seal: its rationale and importance: an overview. Eur J Prosthodont 2014;2(2):41–47. DOI: 10.4103/2347-4610.131972.
  4. Methods taught in dental schools for determining the posterior palatal seal region. J Prosthet Dent 1985;53(3):380–383. DOI: 10.1016/0022-3913(85)90517-7.
  5. A survey of U.S. prosthodontists and dental schools on the current materials and methods for final impressions for complete denture prosthodontics. J Prosthodont 2005;14(4):253–262. DOI: 10.1111/j.1532-849X.2005.00051.x.
  6. Essentials of complete denture prosthodontics. 3rd ed., New Delhi: AITBS Publishers; 2015. p. 160.
  7. Establishing the posterior palatal seal during the final impression stage. J Prosthet Dent 1997;78(3):324–326. DOI: 10.1016/s0022-3913(97)70034-9.
  8. Posterior border seal: its rationale and importance. J Prosthet Dent 1958;8(3):386–397. DOI: 10.1016/0022-3913(58)90064-7.
  9. A functional impression technique for capturing the superior position of the soft palate. J Prosthet Dent 2006;96(2):145–146. DOI: 10.1016/j.prosdent.2006.05.014.
  10. Defining the posterior palatal seal on a definitive impression for a maxillary complete denture by using a nonfluid wax addition technique. J Prosthet Dent 2014;112(6):1597–1600. DOI: 10.1016/j.prosdent.2014.01.032.
  11. Principles and practices of complete dentures. Tokyo: Quintessence; 2001. p. 37.
  12. The relationship of oral examination to dental diagnosis. J Prosthet Dent 1958;8(2):208–219. DOI: 10.1016/0022-3913(58)90150-1.
  13. The posterior palatal seal. A review. Aust Dent J 1980;25(4):197–200. DOI: 10.1111/j.1834-7819.1980.tb03863.x.
  14. The posterior palatal seal area for complete dentures. Dent Clin North Am 1964;1:663–673.
  15. Accurate location of postpalatal seal area on the maxillary complete denture cast. J Prosthet Dent 2006;96(6):454–455. DOI: 10.1016/j.prosdent.2006.10.010.
  16. Posterior palatal seal adaptation: influence of processing technique, palate shape and immersion. J Oral Rehabil 1993;20(1):19–31. DOI: 10.1111/j.1365-2842.1993.tb01511.x.
  17. J Prosthet Dent 2017;117(5S):e1–e105. DOI: 10.1016/j.prosdent.2016.12.001.
  18. Essentials of complete denture prosthodontics. 3rd ed., New Delhi: AITBS Publishers; 2015. p. 158.
  19. Physiology of swallowing. Basic Science 2018;36(10):529–534. DOI: https://doi.org/10.1016/j.mpsur.2018.08.010.
  20. Anatomy and physiology of feeding and swallowing: normal and abnormal. Phys Med Rehabil Clin N Am 2008;19(4):691–707., vii 10.1016/j.pmr.2008.06.001.
  21. Redefining the posterior palatal seal on a complete denture. J Prosthet Dent 1980;43(1):105–107. DOI: 10.1016/0022-3913(80)90363-7.
  22. Evaluation of a delegated procedure: posterior border of a maxillary denture. J Am Dent Assoc 1970;81(1):134–136. DOI: 10.14219/jada.archive.1970.0150.
  23. Use of resin-based provisional material to create the posterior palatal seal in complete denture definitive impressions. J Prosthodont 2019;28(1):e18–e20. DOI: 10.1111/jopr.12658.
  24. Establishing the posterior palatal seal during the final impression procedure: a functional approach. J Am Dent Assoc 1977;94(3):505–510. DOI: 10.14219/jada.archive.1977.0007.
  25. Evaluation of the conventional method for establishing the posterior palatal seal. King Saud Univ J Dent Sci 2012;3(2):61–67. DOI: 10.1016/j.ksujds.2012.07.001.
  26. Role of the surface and volume of palatal relief chambers in the retention of maxillary complete dentures. J Prosthet Dent 1989;62(6):651–653. DOI: 10.1016/0022-3913(89)90585-4.
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