111 - The Extended Denture


The purpose of this article is to give a practical way of making a full extended maxillary and mandibular denture that will hold in place without the benefit of adhesives.


Principles of Dentures

There are four principles of dentures plus the vertical. You can violate one of the principles and the denture will still work. If you violate two of them the denture will not work. You cannot violate the vertical.

1.Extension: The denture must extend as far as possible into the vestibules covering the tuberosity of the maxilla. It must also extend into the lingual of the mandible to include the mylohyoid angle.

2.Retention:The post dam of the maxillary denture is placed in the soft palate as a beaded protrusion where the hard palate and soft palate meet. The post dam of the mandibular denture extends to the plica sublingualis.

3.Placement of teeth: The denture teeth must be over the alveolar bone to take vertical forces without displacing the dentures.

4.Centric occlusion on the posterior teeth: Only the....