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| 1. Helps maintain the peripheral seal. |
The development of an appropriate design for the PPS requires an assessment of the palatal throat form, tissue displaceability, and the role of individual anatomic landmarks in establishing a denture seal. The following steps can act as a guide to diagnose the PPS design.
| 1. Determine the palatal throat form. House Class 1, 2 or 3. |
Posterior palatal seal preparation is an integral part of the maxillary complete denture fabrication requiring assessment of physiological and technical parameters. In the case of patients with either a House Class 1 or 2 throat form, the clinician may have a choice for the placement of the area of greatest depth. A patient with a House Class 3 has limited options because it is the least favourable of the three classes because of limited space for the placement of the PPS.
It is important to point out that there is no single PPS design for all patients.
Category: Prosthodontics Notes
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