The images and videos of "The Root Canal Anatomy Project" blog were developed at the Laboratory of Endodontics of Ribeirao Preto Dental School - University of Sao Paulo - and may be freely used for attributed noncommercial educational purposes by educators, scholars, student and clinicians. It means that all material used should include proper attribution and citation ( In such cases, this information should be linked to the image in a manner compatible with such instructional objectives. Enjoy!

May 19, 2014

Roots Summit 2014 - India

Save the date! More information HERE.

JOE Publication: Radix

More information HERE and HERE

Introduction: The morphology of the supernumerary third root (radix) in mandibular first molars was examined by micro–computed tomography (mCT) scanning. 
Methods: Nineteen permanent mandibular first molars with radix were scanned in amCT device to evaluate their morphology with respect to root length, root curvature direction, location of radix, apical foramen, accessory canals and apical deltas, and distance between canal orifices as well as 2- and 3-dimensional parameters of the canals (number, area, roundness, major/minor diameter, volume, surface area, and structure model index). Quantitative data were analyzed by 1-way analysis of variance and the Tukey test (P<.05).
Results: The mean length of the mesial, distal, and radix roots was 20.36 ± 1.73 mm, 20.0 ± 1.83 mm, and 18.09 ± 1.68 mm, respectively. The radix was located distolingually (n= 16), mesiolingually (n= 1), and distobuccally (n= 2). In a proximal view, most radix roots had a severe curvature with buccal orientation and a buccally displaced apical foramen. The spatial configuration of the canal orifices on the pulp chamber floor was mostly in a trapezoidal shape. The radix root canal orifice was usually covered by a dentinal projection. The radix differed significantly from the mesial and distal roots for all evaluated 3-dimensional parameters (P< .05). The radix canal had a more circular shape in the apical third, and the mean size of the minor diameter 1 mm short of the foramen was 0.25 ± 0.10 mm.
Conclusions: The radix root is an important and challenging anatomic variation of mandibular first molars, which usually has a severe curvature with a predominantly distolingual location, and a narrow root canal with difficult access.

May 8, 2014

Bruker-MicroCT Meeting 2014 - Belgium

Prof. Dr. Marco Versiani - University of Sao Paulo, Brazil
5-8 May - Ostend / Belgium 2014
3D Mapping of the Irrigated Areas of the Root Canal Using Micro-CT

Prof. Dr. Graziela Bianchi Leoni - University of Sao Paulo, Brazil
5-8 May - Ostend / Belgium 2014
Push-out of root canal filling using the material testing stage (MTS) 
inside a Micro-CT: preliminary observations