Aims: To compare the surface microhardness, setting time, and elemental and topographic changes of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM) in contact with acidic, neutral, and alkaline solutions.
Subjects And Methods: For evaluating 24-h and 28-day surface microhardness using Vickers test and initial setting time using Gillmore apparatus, glass molds were filled manually or ultrasonically, either with CEM or MTA and randomly immersed in solutions with acidic, neutral, and alkaline pH (5.4, 7.4, and 9.4, respectively). Topographic changes of the samples as well as energy dispersive X-ray spectra were examined using the scanning electron microscopy.
Statistical Analysis Used: Data were analyzed using the Kruskal-Wallis, Mann-Whitney, Wilcoxon, one- and two-way ANOVA, Tukey's post hoc, and t-tests.
Results: After 28 days, there was an increase in the microhardness for all samples (without statistical significance [P > 0.05]), except for the samples of CEM in acidic environment (P > 0.05). The setting time of MTA samples was statistically higher than CEM samples (P ≤ 0.001). The setting time of both biomaterials was significantly higher in acidic pH than other groups (P ≤ 0.005). Surface topography and elemental constituents of biomaterials were altered in different solutions.
Conclusion: The surface microhardness, setting time, and elemental and topographic properties of MTA and CEM were affected by different solutions. CEM exhibited quicker setting time than MTA; however, acidic solution negatively influenced both of them.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4872573 | PMC |
| http://dx.doi.org/10.4103/0972-0707.181935 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Diagnostic Accuracy of Artificial Intelligence for Detection of Rib Fracture on X-ray and Computed Tomography Imaging: A Systematic Review.
J Imaging Inform Med
January 2025
Department of Orthopedic Surgery, Arrowhead Regional Medical Center, Colton, CA, USA.
Rib pathology is uniquely difficult and time-consuming for radiologists to diagnose. AI can reduce radiologist workload and serve as a tool to improve accurate diagnosis. To date, no reviews have been performed synthesizing identification of rib fracture data on AI and its diagnostic performance on X-ray and CT scans of rib fractures and its comparison to physicians.
View Article and Find Full Text PDFClinical efficacy of lasers in the management of recurrent aphthous ulcers of oral cavity: a systematic review of randomized control trials.
Lasers Med Sci
January 2025
College of Dentistry, Ajman University, Ajman, United Arab Emirates.
Recurrent aphthous stomatitis (RAS) is one of mankind's most common diseases with a nonspecific etiology. Lasers are gaining traction in dentistry due to their remarkable effects on pain reduction. Their convenience and lack of side effects have made them an attractive alternative to conventional interventions.
View Article and Find Full Text PDF"The biggest challenge is there's never a routine": a qualitative study of the time burdens of cancer care at home.
Support Care Cancer
January 2025
Division of Hematology, Oncology, and Transplantation, University of Minnesota, 516 Delaware Street SE, MMC 480, PWB 14-100, Minneapolis, MN, 55455, USA.
Purpose: As cancer care is increasingly delivered in the home, more tasks and responsibilities fall on patients and their informal care partners. These time costs can present significant mental, physical, and financial burdens, and are undercounted in current measures of time toxicity that only consider care received in formal healthcare settings.
Methods: Semi-structured qualitative interviews were conducted with patients with gastrointestinal cancer and informal care partners at a single tertiary cancer center between March and October 2023.
High-Precision prediction of curling trajectory multivariate time series using the novel CasLSTM approach.
Sci Rep
January 2025
Department of Control Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China.
As a multivariate time series, the prediction of curling trajectories is crucial for athletes to devise game strategies. However, the wide prediction range and complex data correlations present significant challenges to this task. This paper puts forward an innovative deep learning approach, CasLSTM, by introducing integrated inter-layer memory, and establishes an encoder-predictor curling trajectory forecasting model accordingly.
View Article and Find Full Text PDFSustainability metrics targeted optimization and electric discharge process modelling by neural networks.
Sci Rep
January 2025
Center for Automation and Robotics, CSIC-Universidad Politécnica de Madrid, Arganda del Rey, Madrid, 28500, Spain.
Aluminium and its alloys, especially Al6061, have gathered significant interest among researchers due to its less density, great durability, and high strength. Due to their lightweight properties, the precise machining of these alloys can become expensive through conventional machining operations for intricate products. Therefore, non-traditional machining such as electric discharge machining (EDM) can potentially be opted for the cutting of Al6061.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!