Publications by authors named "Shorouq Khalid Hamid"

2 Publications

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Structural, fluoride release, and 3D interfacial adhesion analysis of bioactive endodontic sealers.

Dent Mater J 2020 Jun 21;39(3):483-489. Epub 2020 Feb 21.

Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University.

The experimental bioactive sealers were synthesized by incorporating fluoridated-nano-bioactive glass (F-nBG; 2.5 and 5wt%) in AH Plus (Dentsply DeTrey, Konstanz, Germany) sealer and denoted as AH-FBG2.5 and AH-FBG5, respectively. Structural pattern, setting time, flowability, and water sorption analysis were performed. The fluoride release behavior was evaluated periodically over the course of 40 days using inductively coupled plasma optical emission spectroscopy. For sealing ability, post-extraction single-rooted teeth were obturated with sealers. The percentage of voids and sealing ability were evaluated periodically using micro-computed tomography (micro-CT) followed by push-out bond strength. The Fourier transform infrared spectra showed a change in peak height with an increase in the concentration of fillers. The setting time, flowability, and water sorption of experimental groups were within the acceptable clinical range. The fluoride release, sealing ability, and bond strength of experimental sealers were significantly high. The experimental sealers have potential to overcome sealing ability issues of sealers.
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June 2020

In vitro assessment of the antifungal effects of neem powder added to polymethyl methacrylate denture base material.

J Clin Exp Dent 2019 Feb 1;11(2):e170-e178. Epub 2019 Feb 1.

BDS, MSc, Lecturer, Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31411, Saudi Arabia.

Background: Denture with antimicrobial activities is desirable to prevent adhesion subsequently decreasing the susceptibility of denture stomatitis incidence. , commonly known as Neem powder has antimicrobial effect but the effect of its addition to acrylic denture base on adhesion has not been investigated. The aim of this study was determine whether adding neem powder to acrylic denture base materials could reduce adhesion.

Material And Methods: One hundred and twenty acrylic resin denture specimens were fabricated and divided into heat-polymerized (n=60) and auto-polymerized (n=60) groups. Each group was further divided into 6 groups (n=10) based on the neem concentration: 0, 0.5, 1, 1.5, 2 and 2.5 wt% of the polymer. After polymerization, the specimens were polished, stored in distilled water, sonicated, sterilized, submerged in artificial saliva containing C. albicans, and finally, placed in an incubator at 37°C. Slide counting and direct culture methods were used to assess the antifungal effects of the neem addition. An analysis of variance and post hoc Tukey's test were performed for the data analysis (≤0.05 was statistically significant).

Results: Based on the results, the neem addition significantly decreased the count when compared to the control group (≤0.05). Moreover, the count decreased as the neem concentration increased (lowest count with 2.5 wt%).

Conclusions: The results suggest that adding neem powder to acrylic resin denture base materials reduces the adhesion of ; therefore, the incorporation of neem could be a possible denture stomatitis prevention method. Denture stomatitis, Candida albicans, Azadirachta indica, neem powder, denture base.
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February 2019