The Department of Microbiology of the Faculty of Medicine announces that the Microbiology exam for second-year Dentistry Students (Assiut University & Assiut National University) will be MCQ until Mycology lecture.
The Student Union of the Faculty of Dentistry organized an awareness workshop entitled, The Right of Youth and their Duty to Participate in the Presidential Elections", on Thursday 7, 2023 at 10:00 a.m. in the Thesis Defense Hall. The attendees were Prof./ Safaa Tohamy, Dean of the Faculty, Prof/ Heba Rashed, Vice Dean for Community Services and Environmental Development, Prof/ Muhammad Badawy, Vice Dean for Education and Student Affairs, Prof./ Muhammad Nahed, Head of Assiut Dental Hospital, and heads of the departments to discuss the importance of participation in the presidential elections 2024.
The Department of Physics within the Faculty of Science announces the following schedule for laboratory exams for first-year Dentistry students:
Annual Performance Assessment Schedule for 3rd Year Students Old System 2023-2024.
Annual Performance Assessment Schedule for 3rd Year Students Old System 2023-2024.
Annual Performance Assessment Schedule for 4th Year Students 2023-2024.
Annual Performance Assessment Schedule for 2nd Year Students 2023-2024.
The Faculty of Dentistry at is pleased to announce the promotion of Dr. Hesham Elhalaby to Assistant Professor in the Root Therapy Department. The entire Faculty of Dentistry congratulates Dr. Elhalaby on his well-deserved promotion.
Abstract
Background/purpose:Commonly used irrigants for root canal treatment are bactericidal and important for pulp remnants removal but these irrigants may adversely affect the ultrastructural morphology and structural arrangement of the radicular dentin. These changes might dramatically affect the sealing of the root canal system. The aim of this study is to assess the biological effect of the alcoholic andaqueous extracts of moringa on the ultra-structural surface morphology of the radicular dentin.
Materials and methods:A total number of 32 extracted maxillary anterior teeth were decoronated, longitudinally sectioned, and polished. Root sections were randomly and equally divided into 4 groups: group 1 immersed in an alcoholic extract of moringa, group 2 in an aqueous extract of moringa, group 3 in sodium hypochlorite (NaOCl), and group 4 in distilled water (sham control). All groups were immersed for 10 minutes followed by examination of the dentinal surface using scanning electron microscope. Calculation of percentage of dentinal tubules and intertubular dentin was performed. Statistical analysis was performed, and significance was set at 5%.
Results:Both alcoholic and aqueous extracts of moringa widened the dentinal tubule orifices (more patent) and increased the percentage of the intertubular dentin compared to sodium hypochlorite with a statistically significant difference.
Conclusion: Both alcoholic and aqueous extracts of moringa could be used as a better bioactive irrigant in root canal treatment to enhance bonding to radicular dentin by widening (increasing patency) of the dentinal tubules and decreasing the intertubular dentin surface area compared to sodium hypochlorite.
Abstract
Aim:To evaluate the impact of ProTaper Next and Videya N rotary files on root fracture resistance during chemo-mechanical root canal preparation with and without root canal filling.
Methodology:The following files were used to randomly divide a total of 40 newly extracted mandibular premolars into 5 equal groups (n=8); group 1 prepared using ProTaper Next files without filling; group 2 prepared using ProTaper Next files and filled with guttapercha and Totalfil bioceramic sealer; group 3 prepared using Videya N files without filling; group 4 prepared using Videya N files and filled with guttapercha and Totalfil bioceramic sealer; and group 5 without preparation or filling as a control. Using a universal testing machine, all roots were loaded until they fractured, at which point the weight required in Newtons was recorded. The one-way ANOVA test and post hoc analysis were used to quantitatively analyse the data.
Results:The 4 experimental groups without a statistically significant difference between them considerably decreased the fracture resistance of the roots in comparison to the control group.The filled groups showed a non-statistically significant increased fracture resistance compared to the non-filled ones.
Conclusion:Chemo-mechanical root canal preparation decreases the roots’ fracture resistance. Root canal filling using bioceramic sealers might enhance the roots’ fracture resistance.
