Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Area Computation by the Alternative Coordinate Method01:24

Area Computation by the Alternative Coordinate Method

The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
Areas Within Irregular Boundaries01:26

Areas Within Irregular Boundaries

Calculating areas within irregular boundaries, such as along rivers or curved roads, is crucial in various fields, including surveying, engineering, and environmental management. Surveyors often begin by creating a traverse, a connected series of straight lines approximating the area's boundary. The coordinates of each traverse point are essential for calculating the enclosed area. The double meridian distance formula is a widely used technique for this purpose. This method utilizes the...
Calculation of Volume of Solids by Integration01:27

Calculation of Volume of Solids by Integration

Volume calculation often begins with simple geometric solids. For example, the volume of a rectangular box is obtained by multiplying the area of its base by its height. This straightforward approach relies on the fact that the cross-sectional area of the box remains constant throughout its length. Many real-world objects, however, do not have uniform cross-sections, and their volumes cannot be determined using elementary geometric formulas.To address this limitation, the Slicing Method...
Volumes of Solids of Revolution01:29

Volumes of Solids of Revolution

Volumes of irregularly shaped objects can be systematically determined using the concept of solids of revolution. This approach begins with a region defined by a curve in a two-dimensional plane. When this region is rotated about a fixed line, known as the axis of revolution, it generates a three-dimensional object with rotational symmetry. Such objects frequently arise in mathematical modeling, physics, and engineering applications.When the region being rotated lies directly against the axis...
Finding Volume Using Cross-Sectional Area01:24

Finding Volume Using Cross-Sectional Area

For solids whose cross-sectional areas vary in a predictable way, volume can be determined by integrating these areas along an axis perpendicular to the slices. This approach is particularly useful for polyhedral solids, where classical geometric formulas may not be immediately applicable. A tetrahedron provides a clear example of how cross-sectional integration can be applied to a three-dimensional object with continuously changing geometry.Consider a tetrahedron with height h and a base that...
Vector Calculus: Problem Solving01:20

Vector Calculus: Problem Solving

Vector calculus provides mathematical tools for analyzing physical fields that vary throughout space. One important application is the study of gravitational interactions between celestial bodies. Consider the Earth positioned at the origin and a satellite located at a point in three-dimensional space. The Earth exerts a gravitational force on the satellite, and this force can be described by components acting along the coordinate directions. Together, these components form a vector field that...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

RE: The Survival and Success of Teeth With External Cervical Resorption: A Multi-Centre, Retrospective Study.

International endodontic journal·2026
Same author

Assessment of biological individuality in periodontitis patients using a specific algorithm and the Salus method.

Scientific reports·2026
Same author

Esthetic and adhesive properties of a novel colored fiber post: A restorative approach to an endodontic challenge.

European journal of oral sciences·2026
Same author

Calcium Hydroxide Associated With Chitosan Nanoparticles and Propolis: Effects on the Sealer-Dentin Interface.

Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.]·2026
Same author

Response to Letter to the Editor.

International endodontic journal·2026
Same author

Is Cone-Beam CT Reliable for Apical Foramen Assessment? A Micro-CT-Referenced Study.

Australian endodontic journal : the journal of the Australian Society of Endodontology Inc·2026

Related Experiment Video

Updated: Jun 26, 2026

A Finite Element Approach for Locating the Center of Resistance of Maxillary Teeth
10:50

A Finite Element Approach for Locating the Center of Resistance of Maxillary Teeth

Published on: April 8, 2020

9.6K

Method to determine the root canal spatial geometry using an algorithm of the e-Vol DX CBCT software.

Carlos Estrela1, Mike Reis Bueno2, Giampiero Rossi-Fedele3

  • 1Professor of Endodontics, School of Dentistry, Federal University of Goiás, Goiânia, Brazil.

Brazilian Dental Journal
|December 22, 2023
PubMed
Summary
This summary is machine-generated.

This study assessed root canal preparation (RCP) risks using CBCT software. Nickel-titanium instruments showed no significant differences in operative risk, ensuring predictable root canal enlargement.

More Related Videos

Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System
07:03

Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System

Published on: May 5, 2022

4.5K
Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
07:14

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

Published on: May 24, 2022

4.5K

Related Experiment Videos

Last Updated: Jun 26, 2026

A Finite Element Approach for Locating the Center of Resistance of Maxillary Teeth
10:50

A Finite Element Approach for Locating the Center of Resistance of Maxillary Teeth

Published on: April 8, 2020

9.6K
Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System
07:03

Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System

Published on: May 5, 2022

4.5K
Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
07:14

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

Published on: May 24, 2022

4.5K

Area of Science:

  • Endodontics
  • Dental Imaging
  • Biomaterials Science

Background:

  • Root canal preparation (RCP) aims to clean and shape root canals, but risks disproportionate dentinal wall wear.
  • Cone-beam computed tomography (CBCT) offers detailed 3D imaging for assessing root canal anatomy and preparation outcomes.
  • Evaluating operative risks during RCP is crucial for predictable endodontic treatment and preventing complications.

Purpose of the Study:

  • To evaluate a novel CBCT software-based method for determining root canal preparation spatial geometry and operative risk.
  • To assess the operative risk associated with different nickel-titanium (NiTi) engine-driven instruments during RCP in mandibular molars.
  • To validate the clinical applicability of the spatial geometry assessment method for predictable root canal enlargement.

Main Methods:

  • CBCT scans of 168 mandibular molars were acquired pre- and post-RCP using four NiTi instrument systems (ProTaper Next, BioRace, Reciproc Blue, WaveOne Gold).
  • A new CBCT software (e-Vol DX) was utilized to analyze root canal spatial geometry and operative risk, assessing cementum/dentin thickness.
  • A 3-point scoring system categorized risk levels (mild, moderate, severe) based on dentinal wall thickness and potential for disproportionate wear or perforation.

Main Results:

  • No statistically significant differences in operative risk were found among the evaluated NiTi engine-driven systems for mesial or distal walls across all root thirds (p>0.05).
  • The spatial geometry assessment method effectively identified and categorized operative risks, allowing for clinical planning of root canal enlargement.
  • The CBCT-based map-reading strategy indicated that NiTi instruments did not increase operative risk during root canal preparation.

Conclusions:

  • The novel CBCT software and spatial geometry method provide a reliable tool for assessing operative risk during root canal preparation.
  • Clinical planning for predictable root canal enlargement is feasible across all root thirds using this spatial geometry assessment approach.
  • NiTi engine-driven instruments, when used with this assessment method, do not appear to elevate operative risks in root canal preparation.