Affiliation:
1. Restorative Dentistry, Leeds Dental Institute
2. Consultant in Restorative Dentistry, Leeds Teaching Hospitals NHS Trust
Abstract
The success of an upper complete denture is dependent on various factors, including retention and stability during function, comfort and aesthetics. Physical retention of the denture depends upon adequate extension and fit, along with a good border seal. The border seal of an upper denture relies upon extension of the flanges to the functional depth and width of the sulci, and the post-dam. The post-dam of an upper complete denture is a raised ‘lip’ along the posterior border that becomes embedded into the palatal mucosa. This ‘embedding’ of the border within the mucosa helps to create the seal. This technique tip highlights the location and shape of the post-dam, as well as the clinical stages involved in its construction. CPD/Clinical Relevance: Successful location and application of a post dam will help in retention of an upper complete denture.