Main Page
Deanship
The Dean
Dean's Word
Curriculum Vitae
Contact the Dean
Vision and Mission
Organizational Structure
Vice- Deanship
Vice- Dean
KAU Graduate Studies
Research Services & Courses
Research Services Unit
Important Research for Society
Deanship's Services
FAQs
Research
Staff Directory
Files
Favorite Websites
Deanship Access Map
Graduate Studies Awards
Deanship's Staff
Staff Directory
Files
Researches
Contact us
عربي
English
About
Admission
Academic
Research and Innovations
University Life
E-Services
Search
Deanship of Graduate Studies
Document Details
Document Type
:
Thesis
Document Title
:
MICRO-COMPUTED TOMOGRAPHIC ANALYSIS OF MARTENSITIC PHASE SHAPERS OF THE ROOT CANAL SYSTEM
دراسة تحليلية باستخدام الأشعة المقطعية الدقيقة لتشكلات الأقنية اللبية المحضرة بمبارد ذات تركيب بلوري مارتنسيت
Subject
:
Faculty of Dentistry
Document Language
:
Arabic
Abstract
:
to compare the shaping ability of martensitic root canal instruments to the conventional austenitic in an ex-vivo model using micro-CT imaging technology. Methodology: twenty mandibular molars with two separate mesial canals (Vertucci Type IV) were collected from a pool of extracted teeth. The teeth were subjected to a first scan by micro-CT before biomechanical instrumentation to set a baseline for comparison. Then, forty mesial canals were randomly divided into two groups. Martensitic group prepared with One Curve (OC) and austenitic group prepared with One Shape (OS). After biomechanical instrumentation, all teeth were subjected to a second scan. Pre- and post-instrumentation micro-CT scans were evaluated using computer algorithms to compare changes in volume, surface area, Structure Model Index, thickness, untreated canal walls, and canal curvature straightening. Also, measurements of canal transportation were also compared in the coronal, middle, and apical thirds of the canal Results: both instruments produced significant changes in the basic root canal geometry with no preparation errors (paired t test P < 0.05). There were no statistically significant differences in the basic canal geometric parameters between OC and OS (independent samples t test P > 0.05). However, OC produced significantly less straightening to the canal curvature (independent samples t test P < 0.05) and produced significantly less transportation in the apical third (Mann-Whitney U test P < 0.05). Conclusion: Austenitic OS and martensitic OC root canal shapers prepared comparable shapes of the root canal system with no preparation errors. However, martensitic OC preparation respected the original root canal curvature anatomy and produced significantly less straightening and less canal transportation apically.
Supervisor
:
Prof. Khaled Abdullah Balto
Thesis Type
:
Master Thesis
Publishing Year
:
1441 AH
2020 AD
Co-Supervisor
:
Dr. Loai Alsoufi
Added Date
:
Tuesday, January 14, 2020
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
عبدالواحد محمد الغامدي
Alghamdi, Abdulwahed Mohammed
Researcher
Master
Files
File Name
Type
Description
45761.pdf
pdf
Back To Researches Page