The Open Dentistry Journal




ISSN: 1874-2106 ― Volume 12, 2018
RESEARCH ARTICLE

Effect of Oil Paint Addition on Impact Strength of the Scleral Part of the Acrylic Ocular Prosthesis



Firas Abd Kati*
Department of Optical techniques, College of Health & Medical Technology, Middle Technical University, Baghdad, Iraq

Abstract

Background:

For many dental and facial restorations, acrylic resins are the materials of choice because of their appropriate physical and mechanical properties. When making the ocular prosthesis from such materials, it is essential to add the perfect shade in order to match the colour of normal eye. This, however, might have a significant effect on the mechanical properties of acrylic resins.

Objective:

The purpose of this study was to assess the effect of adding the white oil paint (titanium dioxide) to clear acrylic resins on their impact strength.

Methods:

20 samples were constructed from heat cured acrylic resins, and divided into two groups (control and experimental) and each group had 10 samples. The first group was made from clear acrylic resin without the addition of white oil paints, and the second group (experimental) comprised the addition of 1 ml of the white oil paints to acrylic samples. Such samples were prepared with dimensions of (80 mm X10 mm X4 mm) length, width, and thickness, respectively. All the samples were tested by the Charpy's impact strength test. They were exposed to the load till the fracture occurred. All the values were analyzed using SPSS version 20, and the independent T-test was used for comparison between the 2 groups.

Results:

A statistically significant decrease (P-value < 0.001) was found in the impact strength of acrylic resins after the addition of titanium dioxide oil paints (experimental group: 5.97 + 1.11, control group: 9.42+1.32 KJ/M2).

Conclusion:

This study concluded that the addition of titanium dioxide oil paint significantly reduces the impact of strength of the acrylic resin. It is suggested to use different stains which will have no negative effect on impact strength of the acrylic resin.

Keywords: Acrylic resin, Oil paints, Impact strength, Titanium dioxide, SPSS version 20, Dental and facial restorations.


Article Information


Identifiers and Pagination:

Year: 2018
Volume: 12
First Page: 946
Last Page: 951
Publisher Id: TODENTJ-12-946
DOI: 10.2174/1874210601812010946

Article History:

Received Date: 7/8/2018
Revision Received Date: 8/10/2018
Acceptance Date: 17/10/2018
Electronic publication date: 28/11/2018
Collection year: 2018

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© 2018 Firas Abd Kati.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


* Address correspondence to this author at the Department of Optical techniques, College of Health & Medical Technology, Middle Technical University, Baghdad, Iraq; Tel +077 18562575; E-mail: firas_abd26@yahoo.com


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Iran


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