Research articles
ScienceAsia 46S (2020):ID 97-101 |doi:
10.2306/scienceasia1513-1874.2020.S014
The modification of acrylic denture base resin as
materials for artificial teeth: Effect of hydroquinone
and methyl methacrylate monomer
Pornchiwin Banjonga, Natthawika Sankhama, Watchara Duangngaa, Uraiwan Intathaa,b,
Nattakan Soykeabkaewa,b, Sitthi Duangpheta,b,*
ABSTRACT: The purpose of this project is to modify denture base resin for use as artificial teeth material. Generally,
resin for denture base will harden within a few minutes but the working period for artificial teeth shaping is about
30 min. Adding methyl methacrylate (MMA) monomer to dilute accelerator and adding hydroquinone (HQ replica watches) as an
inhibitor are considered in order to extend the solidifying time of denture base resin. The ratios of denture base
resin/MMA in this study were 3:1, 2:2 and 1:3 v/v and the concentration of HQ was varied from 0.01-0.05 wt%. The
results indicated that both HQ and MMA prolonged solidification time of denture base resin and HQ was more effective
in increasing working time than MMA. However, the introduction of HQ and MMA decreased mechanical properties of
the resin including flexural strength, flexural modulus and hardness, so further modifications such as addition of fillers
are required.
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| a |
School of Science, Mae Fah Luang University, Chiang Rai 57100 Thailand |
| b |
Center of Innovative Materials for Sustainability (iMatS), Mae Fah Luang University, Chiang Rai 57100
Thailand |
* Corresponding author, E-mail: sitthi.dua@mfu.ac.th
Received 15 Oct 2019, Accepted 28 Mar 2020
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