The effect of aging on hardness of heat cured denture base resin modified with recycled acrylic resin.

ABSTRACT:

Background

The second rule of the 4Rs concept (Reduce, Reuse, Recycle, and Recover) was applied in this study using recycled acrylic resin to improve the hardness and study the effect of aging on the hardness of heat cured denture base resins.

Method

Forty heat-cured acrylic resin samples were prepared and divided into control and modified groups. The hardness was tested using a type D durometer hardness tester for evaluating the effect of the thermal aging process on the hardness in the control and modified groups. The samples were either subjected to thermal aging (the specimens thermo-cycled 10 cycles per day between 55°C and 5°C with a 30-s dwell time) or were not.

Results

The mean difference in hardness between specimens with and without aging in the modified gro

SUBMITTER: Al-Jmmal AY 

PROVIDER: S-EPMC10847626 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature