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Related Experiment Videos

Changes caused by processing complete mandibular dentures

S K Lechner1, G A Thomas

  • 1Department of Removable Prosthodontics, University of Sydney, Australia.

The Journal of Prosthetic Dentistry
|December 1, 1994
PubMed
Summary
This summary is machine-generated.

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Complete mandibular dentures shrink after processing, particularly in the anteroposterior direction. This shrinkage can cause denture material to twist, leading to pressure areas in specific regions.

Area of Science:

  • Dental Materials Science
  • Prosthodontics

Background:

  • Complete mandibular dentures are crucial for oral function and aesthetics.
  • Understanding denture processing-induced dimensional changes is vital for patient comfort and fit.

Purpose of the Study:

  • To quantitatively and qualitatively assess dimensional changes in complete mandibular dentures after processing.
  • To identify specific areas of shrinkage and potential qualitative alterations.

Main Methods:

  • Linear measurements were taken before and after the processing of complete mandibular dentures.
  • Qualitative assessments were performed to identify changes in denture fit and surface characteristics.

Main Results:

  • Significant linear shrinkage was observed in all dimensions of the processed dentures.

Related Experiment Videos

  • The greatest shrinkage occurred in the anteroposterior direction, along the lingual flanges.
  • Shrinkage variations suggest material twisting during curing, resulting in pressure areas.

    • Conclusions:

    • Processing complete mandibular dentures leads to dimensional instability and shrinkage.
    • Material twisting during curing is a likely cause of uneven shrinkage.
    • Resultant pressure areas in the distolingual and anterolabial regions can impact denture wearability.