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Dimensional change in maxillary prosthetic obturators.

E L DaBreo1

  • 1Ohio State University, College of Dentistry, Columbus.

The Journal of Prosthetic Dentistry
|November 1, 1991
PubMed
Summary

Maxillary obturator bases made with light-polymerized resin showed the least dimensional change. This finding is crucial for improving oral rehabilitation outcomes in maxillectomy patients.

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Area of Science:

  • Dental Materials Science
  • Prosthodontics
  • Maxillofacial Rehabilitation

Background:

  • Maxillectomy surgery necessitates obturator prostheses for oral function.
  • Dimensional stability of obturator bases is critical for maintaining occlusal relationships and patient comfort.
  • Changes in obturator dimensions can lead to poor fit and functional deficits.

Purpose of the Study:

  • To investigate the dimensional stability of maxillary obturator bases.
  • To compare dimensional changes among three different denture base resins.
  • To identify resin materials that minimize positional changes between the base and teeth.

Main Methods:

  • Maxillary obturator prostheses were fabricated using three distinct denture base resins.
  • Dimensional changes were measured by assessing the positional variance between the obturator base and teeth.
  • Percent change was calculated for each resin material.

Main Results:

  • A light-polymerized denture base resin exhibited the lowest percentage of dimensional change.
  • This material demonstrated superior stability in maintaining the relationship between the obturator base and teeth.
  • Other resins showed greater dimensional instability.

Conclusions:

  • Light-polymerized resins offer superior dimensional stability for maxillary obturator bases.
  • Material selection is a key factor in optimizing the long-term performance of obturators.
  • Using dimensionally stable materials can improve oral rehabilitation outcomes for maxillectomy patients.

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