Related Experiment Video
Updated: Apr 16, 2026
07:14
Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
Published on: May 24, 2022
5.5K
Micro-computed Tomographic Analysis of Mandibular Second Molars with C-shaped Root Canals
Pablo Andrés Amoroso-Silva1, Ronald Ordinola-Zapata1, Marco Antonio Hungaro Duarte1
1Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.
Journal of Endodontics
|March 4, 2015
Summary
Mandibular second molars with C-shaped root canals show varied internal anatomy. The C1 and C2 configurations in the apical third have larger areas and diameters but lower roundness.
Area of Science:
- Endodontics
- Dental Anatomy
Background:
- C-shaped root canals in mandibular molars present unique anatomical challenges.
- Understanding their internal morphology is crucial for effective endodontic treatment.
Purpose of the Study:
- To analyze the morphometric characteristics of C-shaped root canal systems in mandibular second molars.
- To classify root canal cross-sections and evaluate key dimensional parameters.
Main Methods:
- Micro-computed tomography (micro-CT) was used to scan 52 extracted mandibular second molars.
- Root canal cross-sections were classified (C1-C4), and morphometric parameters (diameter, aspect ratio, roundness) were measured.
Main Results:
- C-shaped canals showed predominantly C4/C3 configurations apically and C1/C2 cervically.
- C1 and the distal aspect of C2 configurations had higher area and major diameter, with lower roundness in the apical third.
Conclusions:
- Mandibular molars with C-shaped canals exhibit diverse symmetric, asymmetric, and merging configurations.
- Specific configurations (C1, distal C2) are characterized by larger apical diameters and areas, indicating complex root canal anatomy.
