J Korean Acad Prosthodont.  2022 Apr;60(2):152-159. 10.4047/jkap.2022.60.2.152.

Maxillary complete denture fabrication cases with posterior palatal seal considering palatal form and tissue displacement

• Kim SA
• Son MK
• Heo YR

• KMID: 2529448
• DOI: http://doi.org/10.4047/jkap.2022.60.2.152

Abstract

The role of the posterior palatal seal is important in retention of the maxillary complete denture. After taking the final impression, additional retention can be given to the maxillary denture through a mechanical method of forming a groove on master cast, but this is often overlooked in the clinical process. As a result, the posterior palatal seal is formed in a uniform way by the technician without considering the individual characteristics of the patient. Until now, various types of posterior palatal seal have been introduced by many people. This case report describes the process of manufacturing the maxillary complete denture by determining the position and form of an appropriate posterior palatal seal after considering the patient’s anatomical palatal form and tissue displacement during function.

Keyword

Complete denture; Palatal throat form; Posterior palatal seal; Tissue displacement