Publications by authors named "Amr M AbdelAziz"
Aim: The purpose of this study was to evaluate the effect of radiotherapy on flexural strength, microhardness, and surface roughness of bulk fill composite (X-tra fil) and glass ionomer (EQUIA Forte HT).
Materials And Methods: A total of 40 specimens were prepared for each test and were divided into two groups according to the material used (composite or glass ionomer cement), and each group was divided into two subgroups ( = 10) according to radiation condition, irradiated subgroup, subjected to 50 Gy by multienergy linear accelerator delivered in one shot and control subgroup.
Results: Control samples of flexural strength and microhardness had a significantly higher value than irradiated samples in both materials.
Background: Vital pulp therapy, based on the use of stem cells, has promising research and therapeutic applications in dentistry. It is essential to understand the direct effect of capping materials on the dental pulp stem cells of primary teeth, which contribute to the healing powers of the tooth. The aim of this study is to evaluate the effect of different capping materials (Calcium Hydroxide (DyCal®) - Glass Ionomer (Fuji IX®) and light-cured resin modified calcium silicate (TheraCal LC®)) on the viability, proliferation, and differentiation of stem cells from human exfoliated deciduous teeth (SHEDs).
View Article and Find Full Text PDFBackground: Preservation of necrotic primary teeth is important. Pulpectomy is the gold standard treatment in this situation. Reinfection is the main cause of failure in pulpectomy.
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- * A survey revealed that while 69.2% of students were aware of MIH, 87.8% struggled to differentiate it from other dental conditions, particularly enamel hypoplasia.
- * Findings indicate a strong need for enhanced clinical training on MIH diagnosis and treatment in pediatric dentistry courses, as most students are familiar with the condition only theoretically.
A microarray is a revolutionary tool that generates vast volumes of data that describe the expression profiles of genes under investigation that can be qualified as Big Data. Hadoop and Spark are efficient frameworks, developed to store and analyze Big Data. Analyzing microarray data helps researchers to identify correlated genes.
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- The study aimed to evaluate dental faculty's knowledge, attitudes, and awareness of research ethics and research ethics committees (RECs) across two universities in the Middle East.
- A survey was distributed, revealing a 62.5% response rate, where over 90% of faculty had a positive view of RECs, yet 44% felt that RECs might slow down the research process.
- Despite strong support for research ethics education, only 36.8% had prior training, and the average knowledge score was 40.2%, indicating significant gaps in understanding research ethics practices.
Many investigators have reported attempts to develop reliable laboratory and clinic evaluation systems. However, few studies, regardless of level of success, have used an analytic procedure to identify those components of the evaluation system that, if refined further, could improve reliability. The purpose of this study was to compare intra- and inter-examiner variability in two evaluation methods: glance and grade (global), and checklist and criteria (analytical).
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