Immediate maxillary denture base extension for posterior palatal seal

Area of Science:

• Dentistry
• Prosthodontics
• Materials Science

Background:

• Maxillary dentures often suffer from poor retention due to underextension.
• A posterior palatal seal is crucial for denture stability and function.
• Existing methods for improving retention can be time-consuming or require laboratory procedures.

Purpose of the Study:

• To describe a simple, chairside procedure for extending the maxillary denture base.
• To enhance the posterior palatal seal and improve denture retention.
• To provide an immediate solution for underextended maxillary dentures.

Main Methods:

• Provisional extension of the denture base using paraffin wax.
• Incorporation of a silicone putty core for support.
• Application of direct relining resin to establish the posterior palatal seal.

Main Results:

• The described technique effectively extends the maxillary denture base.
• Immediate recovery of retention was achieved for underextended dentures.
• The procedure was simple, quick, and did not require additional laboratory work.

Conclusions:

• This method offers a practical and efficient approach to improving maxillary denture retention.
• The technique successfully creates a posterior palatal seal, enhancing denture stability.
• It serves as an immediate, chairside solution for common denture retention issues.