URGENT: First-Year Students Needed for ID Card Photo
First-year students whose names are listed below are urgently asked to bring personal photos with white background to obtain their Smart ID Cards.
Online ELPT English Exam on Saturday, November 25, 2023
The online ELPT English exam will be held on Saturday, November 25, 2023, in the Faculty of Arts. For registration, please visit Research and Postgraduate Studies in the Administration Building.
Registration for Student Families, Central Families, and Student Initiatives for the Academic Year 2023/2024 is Open
The Student Families Administration of the Central Youth Welfare Administration is pleased to announce the opening of registration for student families, central families, and student initiatives for the 2023/2024 academic year. The name of a student's family must indicate its activities and cannot include the name of any associations or institutions outside of Assiut University. To register, please contact the Student Family Coordinator in the Youth Welfare Administration.
Written and Illustrated Wall Magazines Competition
The Youth Welfare Administration will host a written and illustrated wall magazines competition in honor of the October War victory. Workshops will be held from October 29 to November 2, 2023, at the Assiut Sports Stadium at 10:00 a.m. To register, please visit the Youth Welfare Administration.
Asnan Football Competition
The Sports Committee of the Youth Welfare Administration is pleased to announce the Asnan Football Competition 2023-2024. To register, form your team, and choose a start date, please visit the Sports Coordinator.
Call to Participate in Nagham Festival 2
The Artistic Committee of the Youth Welfare Administration and the Student Union of the Faculty of Dentistry are pleased to announce their participation in the Nagham Festival 2, which will be held from October 13 to 16, 2023. This festival is a prestigious opportunity to discover new talents in playing instruments, singing, Inshād, and Hymns. Each faculty will be limited to 10 participants. To register for the festival, please visit the Artistic Committee Coordinator in the Youth Welfare Administration.
Head of Assiut Dental Hospital Meets with Interns
Under the auspices of Professor Safaa Marzouk Tohamy, Dean of the Faculty, Professor Mohamed Nahed Attia, Head of Assiut University Dental Hospital, met with the 2023 Interns on Thursday, October 19, to explain the unified regulations for compulsory training for dental interns in accordance with the ministerial decision of 2023. He then announced that the lists of interns had been distributed and that the process of onboarding had begun in preparation for the start of the training period on Wednesday, November 1, 2023. He concluded by thanking and appreciating the Medical Affairs Department for their hard work and dedication.
Day Trips for Dentistry Students
The Social Committee along with the students’ Union in the Faculty of Dentistry will organize day trips for the students to Cairo, Hurghada, and Wadi Al-Rayyan. The trip price includes transportation, breakfast, lunch, and the itinerary. For more information, please read the announcement.
Flu Vaccination for Medical Staff at Assiut Dental Hospital
The Infection Control Department at the University Dental Hospital has vaccinated all medical staff in all hospital departments with the flu vaccine as part of precautionary measures ahead of winter from 18 to 19 Oct. 2023.
Effect of Aging and Nano silica Surface Treatment of Zirconia Ceramics Crowns on Microleakage
Research Abstract
Abstract
Objective The goal of this study was to find out how aging and a surface treatment called sol-gel nano silica affect microleakage in zirconia ceramic crowns. Materials and methods: Twenty recently extracted human maxillary first molars were prepared for full coverage zirconia crowns made of Yttrium-stabilized zirconia ceramics that are readily available. They were split into four groups, each with five samples the control group, the thermocycling group, the nanosilica group, and the nanosilica-thermocycling group. Zirconia crown fitting surfaces were coated with a sol-gel nano silica substance. Thermal cycling was performed 5000 thermal cycles. TheraCem resin cement was used to cement all of the crowns. Crowns were submerged in 0.5% methylene blue solution for 24 hours before being sectioned bucco-lingually for microleakage testing. The depth of dye penetration was evaluated using a light stereomicroscope (Nikon MA100 Japan) at 50 magnification and image analysis software (Omnimet, Buchler, USA). The Tukey test and one-way ANOVA were used for statistical analysis. Result: The nanosilica group had the lowest microleakage, followed by the nano-silica with thermocycling group. Among the groups, the thermocycling group had the highest microleakage values. Conclusion: Although sol-gel nano silica coating reduces microleakage, ageing has a negative impact on it.
Research Date
Research Department
Research File
EDJ_Volume 69_Issue 3_Pages 2203-2211.pdf
(314.08 KB)
Research Journal
Egyptian Dental Journal
Research Member
Research Pages
2203:2211
Research Publisher
Egyptian Dental Journal
Research Rank
Local
Research Vol
69
Research Website
https://edj.journals.ekb.eg/article_305768.html
Research Year
2023