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Denture base resins: comparison study of color stability
K B May1, M E Razzoog, A Koran
1University of Michigan, School of Dentistry, Ann Arbor.
The Journal of Prosthetic Dentistry
|July 1, 1992
Summary
Lucitone Hy-pro and Acron denture base resins showed the best color stability after accelerated aging. Compak-20 exhibited the most significant color changes, indicating lower stability for this dental material.
Area of Science:
- Materials Science
- Biomaterials Engineering
- Dental Prosthetics
Background:
- New denture base resins offer improved processing efficiency.
- Assessing the long-term color stability of these resins is crucial for clinical success and patient satisfaction.
Purpose of the Study:
- To evaluate and compare the color stability of six different denture base resins under accelerated aging conditions.
- To identify resins with superior color retention for prosthetic applications.
Main Methods:
- Six denture base resins (five base, one repair) were processed, with five samples each.
- Accelerated aging was performed for 100 and 300 hours.
- Color stability was quantitatively assessed using a Minolta Chroma Meter II, calculating color difference (delta E).
Main Results:
- Significant differences in color change were observed among the materials after 300 hours (p < 0.01).
- Lucitone Hy-pro and Acron demonstrated minimal color alteration.
- Triad, Accelar 20, and Perm showed noticeable color changes.
- Compak-20 exhibited the most substantial color change, indicating the least color stability.
Conclusions:
- Denture base resin color stability varies significantly, impacting long-term aesthetics.
- Lucitone Hy-pro and Acron are recommended for applications requiring high color stability.
- Compak-20 may not be suitable for long-term aesthetic restorations due to its color instability.