Antifungal Effect and Selected properties of Acrylic Resin Space Maintainer Modified with Castor Oil

Abstract

Background: For children using PMMA space maintainer device, It is necessary to implement modifications, such as incorporation of oils, that exhibit antifungal activity and influenced acrylic resin materials properties.

Aim: To assess the incorporation influence of different concentration of purify Castor oil on selected properties of acrylic heat cured materials (surface hardness and color test ) and on the sensitivity and adherence of C. albicans

Materials and methods: eighty specimens number were constructed from heat cure acrylic according to ADA specification,divided into ;40 specimens for hardness test and 40 specimens for color change test .these 40 specimens were subdivided into four groups according to Castor oil addition, Ten specimence had prepared which was control group without additive and thirty specimence were prepared within corporation of Castor oil in these different concentrations (1%, 2% and 2.5% Castor oil) hardness test were measured by shore D device and color test were measured by spectrophotometer. Antifungal sensitivity test was tested by agar well techniques and biofilm formation by using the 96-well plates.

Result and Conclusion : this results revealed the addition of Castor oil increased the hardness of acrylic resin materials the difference was significant with control (P ≤ 0.05) group , and the  differences was non significant on the color test of acrylic materials with control and among all groups. The oil inhibit the growth of Candida albicans the inhibition zone were increased when concentration of oil increased and had effect in reducing biofilm formation. The additives materials of pure natural Castor oil by  different concentration improved  hardness property and had no effect on color property of heat resin material .It had antifungal effect against candida albicans inhibit their growth and even inhibit their biofilm formation.