Shock-absorbing Behavior of Soft Denture Liner

Part 1. Plate Specimens

Abstract

The soft denture liner is widely used to improve the comfort of the removable partial denture and reduce the residual resorption by reducing impact force.
The purpose of this study was to measure the impact force absorbing behavior of soft denture liners by drop-ball test with the accelerometer.
The results were as follows:
1. Molloplast-B and Molteno showed excellent shock absorbability. The thick spe Cimen showed higher shock absorbability than the thin specimen.
2. The thickness of the specimen did not affect the change of the shock absorbability with time. The shock absorbability of the Kurepeet-Dough decreased with time and its value showed one-half of the value at 24 hours.
3. An acrylic resin showed the shortest rising time to the peak in the materials investigated. Molloplast-B and Molteno showed the longest rising time to the peak.
4. The average of the rising time for Super Soft and Kurepeet-Dough hardly change with time. For Molteno and Molloplast-B, the variation of the rising time between specimens increased with time.