Abstract
A previous study demonstrated the efficacy of using soft denture liners to reduce impact forces on complete dentures and that a silicone denture liner had excellent shock absorption properties. The purpose of this study was to evaluate the influence of the design of soft denture liner placement on shock absorption properties of three soft denture liners using a free drop test and an accelerometer.The results were as follows:1. All three materials effectively reduced the impact force from 28.2 to 82.6% compared to that of denture base resin.2. The design that had the soft denture liner extended to the peripheral of denture base resin 1 showed the greatest shock absorbing behavior for Kurepeet-Dough and Molloplast-B.3. There was no significant difference in acceleration of Super Soft among the three lining designs.4. The acceleration of all materials tested decreased with time.5. The largest changes of the acceleration and rising time were observed on day 10 after being stored in distilled water at 37°C.
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