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Equilibrium strengths of denture polymers subjected to long-term water immersion
Y Takahashi1, J Chai, M Kawaguchi
1Department of Removable Prosthodontics, Fukuoka Dental College, Japan.
Purpose:
This study characterized the effect of water immersion on the strength of denture polymers.
Materials And Methods:
Four denture-base polymers and four denture-reline polymers were tested for flexural strength at proportional limits (FSpl) at 24 hours and at monthly intervals. The equilibrium strength of each polymer was estimated.
Results:
The denture polymers took from 24 hours to 4 months to reach their equilibrium strength. The equilibrium strengths of the denture polymers were significantly different.
Conclusion:
Water immersion affected the strength of most denture polymers. Different denture polymers behaved differently in response to water immersion.