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

Comparative Excretory Systems02:24

Comparative Excretory Systems

26.7K
Animals have evolved different strategies for excretion, the removal of waste from the body. Most waste must be dissolved in water to be excreted, so an animal’s excretory strategy directly affects its water balance.
26.7K
Bending of Curved Members - Neutral Surface01:16

Bending of Curved Members - Neutral Surface

537
In curved beams, unlike straight beams, the stress distribution across the cross-section is not uniform due to the beam's curvature. This non-uniformity arises because the neutral axis, where stress is zero, does not align with the centroid of the section. In a curved beam, the strain varies along the section as a function of the distance from the neutral axis.
Consider the curved member described in the previous lesson. According to Hooke's law, which relates stress to strain within the...
537
Single Pipe Systems01:24

Single Pipe Systems

458
In pipe flow analysis, problems are typically categorized into three types — Type I, Type II, and Type III — based on the known parameters and the desired outcome. Each type of problem addresses specific engineering requirements using fluid properties, pipe characteristics, and operational conditions.
In a Type I problem, fluid properties (density and viscosity), pipe characteristics (including diameter, length, and surface roughness), and the flow rate or average velocity are...
458
Root Loci for Positive-Feedback Systems01:23

Root Loci for Positive-Feedback Systems

352
The Hartley oscillator is a positive feedback system that sustains oscillations by feeding the output back to the input in phase, thereby reinforcing the signal. Positive feedback systems can be viewed as negative feedback systems with inverted feedback signals. In these systems, the root locus encompasses all points on the s-plane where the angle of the system transfer function equals 360 degrees.
The construction rules for the root locus in positive feedback systems are similar to those in...
352
Hydrostatic Pressure Force on a Curved Surface01:04

Hydrostatic Pressure Force on a Curved Surface

2.5K
Hydrostatic pressure on curved surfaces is a fundamental concept in fluid mechanics with broad applications in the civil engineering field. When fluid is in contact with a curved surface, as in a reservoir, dam, or storage tank, it exerts pressure that varies in magnitude and direction along the curved surface. To assess the total hydrostatic force exerted by the fluid on a curved structure, engineers typically isolate the fluid volume adjacent to the surface and analyze the forces acting on...
2.5K
Uncertainty in Measurement: Reading Instruments02:46

Uncertainty in Measurement: Reading Instruments

52.9K
Counting is the type of measurement that is free from uncertainty, provided the number of objects being counted does not change during the process. Such measurements result in exact numbers. By counting the eggs in a carton, for instance, one can determine exactly how many eggs are there in the carton. Similarly, the numbers of defined quantities are also exact. For example, 1 foot is exactly 12 inches, 1 inch is exactly 2.54 centimeters, and 1 gram is exactly 0.001 kilograms. Quantities...
52.9K

You might also read

Related Articles

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

Sort by
Same author

Addition of nisin to high-viscosity glass-ionomer cement: a comparative in vitro study on antibacterial and physical properties.

European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry·2024
Same author

Evaluation of New Alkasite Based Restorative Material for Restoring Non- Carious Cervical Lesions- Randomized Controlled Clinical Trial.

The European journal of prosthodontics and restorative dentistry·2022
Same author

MMP-9 Levels and NaOCl Lavage in Randomized Trial on Direct Pulp Capping.

Journal of dental research·2021
Same author

Antimicrobial activity, toxicity and accumulated hard-tissue debris (AHTD) removal efficacy of several chelating agents.

International endodontic journal·2020
Same author

Safety assessment of an etidronate in a sodium hypochlorite solution: randomized double-blind trial.

International endodontic journal·2019
Same author

Chemical, cytotoxic and genotoxic analysis of etidronate in sodium hypochlorite solution.

International endodontic journal·2019

Related Experiment Video

Updated: Feb 6, 2026

Scanning Electron Microscopic Evaluation of Surface Defects of Remover Retreatment File After Single and Multiple Uses
03:07

Scanning Electron Microscopic Evaluation of Surface Defects of Remover Retreatment File After Single and Multiple Uses

Published on: October 11, 2024

1.0K

Comparative Evaluation of Surface Defects In Single File Rotary Systems Before and After Instrumentation In Curved

T P Purayil1, N V Ballal1, K Ginjupalli1

  • 1Manipal College of Dental Sciences.

The European Journal of Prosthodontics and Restorative Dentistry
|August 29, 2018
PubMed
Summary
This summary is machine-generated.

Electropolished rotary files show fewer defects than EDM-treated files after curved root canal instrumentation. Electropolished files are safer for up to five uses, offering better durability in complex endodontic procedures.

Keywords:
Continuous RotationEndodontic InstrumentRotaryScanning Electron MicroscopeSingle File Systems

More Related Videos

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves
06:48

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves

Published on: May 10, 2020

4.0K
Testing of all Six Semicircular Canals with Video Head Impulse Test Systems
08:38

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems

Published on: April 18, 2019

32.8K

Related Experiment Videos

Last Updated: Feb 6, 2026

Scanning Electron Microscopic Evaluation of Surface Defects of Remover Retreatment File After Single and Multiple Uses
03:07

Scanning Electron Microscopic Evaluation of Surface Defects of Remover Retreatment File After Single and Multiple Uses

Published on: October 11, 2024

1.0K
Surface Mapping of Earth-like Exoplanets using Single Point Light Curves
06:48

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves

Published on: May 10, 2020

4.0K
Testing of all Six Semicircular Canals with Video Head Impulse Test Systems
08:38

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems

Published on: April 18, 2019

32.8K

Area of Science:

  • Endodontics
  • Materials Science in Dentistry
  • Dental Instrument Engineering

Background:

  • Single file rotary systems are crucial for efficient root canal instrumentation.
  • Surface treatments like electropolishing and Electrical Discharge Machining (EDM) aim to enhance file performance and longevity.
  • Understanding the impact of these treatments on file integrity, especially in curved canals, is essential for clinical safety and efficacy.

Purpose of the Study:

  • To compare the surface defects and durability of electropolished versus EDM-treated single file rotary systems.
  • To evaluate the impact of repeated use on the structural integrity of these instruments in curved root canals.
  • To determine the optimal safe usage limit for each type of surface-treated rotary file.

Main Methods:

  • 160 root canals were instrumented using either electropolished (Group 1) or EDM-treated (Group 2) single file rotary systems.
  • Scanning Electron Microscopy (SEM) was used to analyze file surface defects before use, after 5 uses, and after 8 uses.
  • Surface defect scores were statistically analyzed to compare the two groups.

Main Results:

  • Both electropolished and EDM-treated files exhibited varying surface defects after root canal instrumentation.
  • Electropolished rotary files demonstrated greater resistance to deformation compared to EDM-treated files after five uses.
  • Significant differences in surface defect patterns were observed between the two surface treatment methods.

Conclusions:

  • Electropolished single file rotary systems are more resistant to surface defects and deformation in curved root canals compared to EDM-treated systems.
  • Electropolished files can be safely used up to five times, suggesting a higher durability and reliability for clinical application.
  • The findings support the use of electropolished files for enhanced safety and performance in endodontic treatments involving curved canals.