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Posterior peripheral seal distortion related to processing temperature

D N Firtell, A J Green, J M Elahi

The Journal of Prosthetic Dentistry

|June 1, 1981

Summary

This summary is machine-generated.

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Processing acrylic resin denture bases above recommended temperatures causes significant distortion. A specialized boiling acrylic resin minimizes this distortion, ensuring better denture fit and function.

Area of Science:

Materials Science
Biomaterials Engineering
Prosthodontics

Background:

Denture base processing temperature is critical for dimensional stability.
Acrylic resins are common materials for denture fabrication.
Peripheral seal integrity is essential for denture retention and function.

Purpose of the Study:

To evaluate the effect of processing temperature on the posterior peripheral seal of conventional acrylic resin denture bases.
To compare the dimensional stability of a conventional acrylic resin with a specialized boiling acrylic resin.

Main Methods:

Conventional acrylic resin processed at temperatures ranging from 135°F to 180°F.
Evaluation of posterior peripheral seal distortion in denture bases.
Comparison with a specialized boiling acrylic resin under similar processing conditions.

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Main Results:

No significant distortion occurred below or at the manufacturer's recommended temperature.
Statistically significant distortion was observed when processing above the recommended temperature.
The specialized boiling acrylic resin exhibited significantly less distortion than the conventional resin.

Conclusions:

Processing conventional acrylic resin above recommended temperatures leads to detrimental distortion of the denture base posterior seal.
Specialized boiling acrylic resins offer improved dimensional stability, reducing processing-induced distortion.
Adhering to manufacturer guidelines for acrylic resin processing is crucial for maintaining denture base integrity.