Effect of Different Disinfecting Solutions on Some Properties of Maxillofacial Elastomers Over Time

Volume 6 , Issue 2 , December 2019 , Pages 8-14

Authors

Qaiss B. Al-Jumaili 1 ; Salim A. Salim 2

1 Khanzad Training Center, Erbil, Iraq.

2 Department of Prosthodontics, College of Dentistry, Hawler Medical University, Erbil, Iraq.

DOI logo 10.17656/sdj.10091

Keywords

Abstract

Objective: The use of disinfectant solutions for a long time can cause distortion in the maxillofacial prosthesis. The purpose of this
study is to check the efficiency of three disinfectant solutions on bacteria and Candida and to evaluate the changes in the color and the
hardness of the silicon with the increasing of the time of disinfection.
Methods: Twenty-eight samples of maxillo-facial silicon with dimensions of 4cm*1cm*3mm for each sample were used and divided
into four groups. Group I: Normal saline 0.9 %, Group II: Sodium hypochlorite 3%, Group III: Thymol 2%, and Group IV: Neutral
soap. The samples contaminated with isolated Staphylococcus epidermidis bacteria and Candida Albicans; each group immersed for
10 minutes and then 30 hours in testing solutions evaluating the growth of colonies. Hardness test was done for all testing groups by
the use of Shore-A hardness tester after 30 hours of immersion for each group. Color stability was also done by the use of a digital
Spectrophotometer for the same samples after the same period of immersion.
Results: Sodium hypochlorite and thymol solutions showed a highly significant difference on bacterial and Candida growth in both
time intervals with no effect on hardness and color, Neutral soap showed a poor disinfection effect on microorganisms with a low
significant change in the hardness and no effect on color stability.
Conclusions: Sodium hypochlorite 3% and Thymol 2% are very effective disinfection solutions on both bacteria and candida with
very little effects on the hardness and color stability. 

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  • Published at1 December 2019

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