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Sorption and solubility of 12 soft denture liners
The Journal of Prosthetic Dentistry
|October 1, 1994
Summary
The sorption and solubility of soft denture liners significantly impact their long-term stability and clinical performance. This study evaluated 12 liners, revealing significant material differences in these properties over one year.
Area of Science:
- Materials Science
- Biomaterials Engineering
- Dental Materials Science
Background:
- Long-term stability of soft denture liners is crucial for patient comfort and denture longevity.
- Sorption and solubility are key physical properties influencing liner performance, leading to potential issues like hardening and discoloration.
- Understanding these properties is essential for selecting appropriate soft denture liner materials.
Purpose of the Study:
- To quantitatively assess the sorption and solubility of 12 different soft denture liners.
- To compare the sorption and solubility characteristics of various liner materials, including copolymers, silicones, and a fluoroelastomer.
- To determine the long-term changes in sorption and solubility over a 1-year period.
Main Methods:
- Sorption and solubility tests were conducted on 12 soft denture liners according to American Dental Association (ADA) Specification 12.
- Five specimens of each material were tested, with data collected at 1 week, 1 month, 3 months, 6 months, and 1 year.
- Statistical analysis using two-way ANOVA and Tukey intervals was employed to identify significant differences between materials.
Main Results:
- Sorption values ranged from 0.2 to 35.7 mg/cm² over 12 months, with significant variations observed between materials at all time points.
- Solubility values ranged from 0.0 to 2.3 mg/cm² over 12 months, also showing significant differences across materials.
- Significant differences in both sorption and solubility were found between the tested soft denture liners at all measured intervals.
Conclusions:
- The sorption and solubility of soft denture liners vary considerably among different materials.
- These physical properties have direct clinical implications for the long-term durability and effectiveness of soft denture liners.
- Material selection should consider the observed sorption and solubility characteristics to ensure optimal clinical performance and longevity.