Evaluation of Dentine Structure Loss after Separated File Retrieval by Three Different Techniques: An Ex-vivo Study

Research Abstract

Objective: To evaluate the success rate of retrieving separated instrument, the root canal volume changes using cone-beam computed tomography and the retrieval time using Ruddle's technique, Terauchi file retrieval kit (TFRK) and Endo Rescue kit.

Methods: Sixty human mandibular first molars were selected, and a 4-mm portion of# 25/. 04 rotary files were separated in the middle third of moderately curved mesio-buccal canals. Teeth were randomly assigned into three groups (n= 20): R group, in which separated files were retrieved according to Ruddle's technique; T group, in which separated files were retrieved using TFRK and E group, in which separated files were retrieved using Endo Rescue kit. Values were analyzed using IBM SPSS. Results presented as mean±standard deviation and 95% confidence interval for the root canal volume and time and frequency (%) for success rate. Comparisons of differences in time, canal volume and success rate between groups were assessed.

Results: Retrieval was successful in R and T groups (70% and 80% respectively) without any significant difference between them (p= 0.715), while E group hadn’t any successful samples (0.0%) with significant difference compared to R and T groups (p< 0.001, p< 0.001). E group showed the highest increase in canal volume followed by R group, while T group exhibited the lowest increase in canal volume. There was no significant difference in the mean retrieval time between R and T groups (p= 0.815).

Conclusion: TFRK provides a more conservative way for retrieval of separated instrument from the middle third of moderately curved canals.

Research Authors
Mohamed Ashraf Abdeen, Gianluca Plotino, Ehab El-Sayed Hassanien, Mohammed Turky
Research Date
Research Department
Department of Root Therapy
Research Journal
European Endodontic Journal
Research Member
Mohammad Ashraf Zain al-Abedin Mohammad
Research Year
2023

Public Speaking and Radio and Television Presentation Skills Course

The Cultural Activities Office will hold a specialized course entitled, “Public Speaking and Radio and Television Presentation Skills” for university students from 24 to 26 July 2023. For more information, kindly contact the Student Union in the Youth Welfare Office in the Administration Building.

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Summer Scouting Activities at Assiut University

The Central Youth Welfare Office will establish training centers to help students learn scouting, artistic and cultural skills for three weeks during July and August. The training will be for three days a week (Sunday- Monday- Tuesday) in the Olympic Village. For more information, kindly contact the Student Union in the Youth Welfare Office in the Administration Building.

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Summer Religious Activities at Assiut University

The Student Union at Assiut University will start its summer activities with an educational program about the correct recitation of the words of the Holy Quran entitled, “Manifestation of Pronouncing the Words of the Holy Quran.”

For more information, kindly contact the Student Union in the Youth Welfare Office in the Administration Building.

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Courses for Staff Members for Promotion

The Assessment and Measurement Unit at Assiut University is offering basic courses in July 2023 for faculty members who are about to be promoted to the positions of Assistant Lecturer or Lecturer. Registration is available from 9:30 a.m. to 10:00 a.m. The certificate costs 50 L.E. For more information about the schedule of the courses, kindly read the provided announcement.  .

 

 

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16th Session of Dentistry Faculty Council

The Faculty of Dentistry held its 16th session on Sunday 18-6-2023 at 1:00 p.m. in the presence of the Dean of the Faculty Prof/ Mohamed Abdul Maged Katamish, Prof/ Naglaa El-Meligy the Vice Dean for Education and Student Affairs, and prof/ Muhammad Nahed, head of Assiut Dental Hospital and heads of the departments to discuss faculty issues.

 

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Retirement Celebration for Mrs. Mona Sayed Salem

The faculty of Dentistry honored Mrs. Mona Sayed Salem, head of the Public Service Office, for her retirement on Sunday 18-6-2023. The Dean of the Faculty, Prof/ Mohamed Abdul Maged Katamish, offered her the college trophy and a certificate of appreciation for her outstanding efforts during her working years in the presence of Dr. Mohamed Nahed Attia, head of Assiut Dental Hospital, and Mr. Al-Montaser Hussein Ahmed, moderator of the college. The faculty wishes her continued success and prosperity.
 
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Dentistry Administration Meeting with Students

Prof/ Mohamed Abdul Maged Katamish, Dean of the Faculty, Prof/ Naglaa El-Meligy, the Vice Dean for Education and Student Affairs, and Prof/ Heba Rashed Vice Dean for Community Services and Environmental Development held a meeting with the students where students’ suggestions and complaints have been discussed to ensure the smooth running of the educational process within the college.

 

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