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 Experiment Videos

Evaluating the sizes of Lightspeed instruments

C Schrader1, B Sener, F Barbakow

  • 1Department of Preventive Dentistry, Periodontology and Cariology, University of Zurich, Switzerland.

International Endodontic Journal
|November 21, 1998
PubMed
Summary

Lightspeed cutting heads were measured, revealing most oversized diameters exceeding tolerance. Size 20 showed the widest range, while size 45 had the largest deviations, indicating potential manufacturing inconsistencies.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Scapholunate Ligament Partial Tears; Tear Localization, Extrinsic Ligament Injury Association and Conservative Treatment Responses Prior to Instability: Cross-Sectional Study.

Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca·2023
Same author

Don't Let Our Operating Theatre to Be Desert.

Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca·2021
Same author

Randomized double-blind sham-controlled trial of thalamic versus GPi stimulation in patients with severe medically refractory Gilles de la Tourette syndrome.

Brain stimulation·2021
Same author

The Evaluation of Results of Repair using All-Soft Suture Anchor in the Treatment of Chronic Tendinous Mallet Finger Surgery.

Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca·2020
Same author

Acute Total Ulnar Collateral Ligament Injuries of Thumb - Primary Repair with Mini Soft Suture Anchor (JuggerKnot™).

Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca·2019
Same author

Prognostic relevance of topoisomerase II α and minichromosome maintenance protein 6 expression in colorectal cancer.

BMC cancer·2019

Area of Science:

  • Dental instrument manufacturing
  • Materials science and engineering

Background:

  • Accurate instrument dimensions are critical for dental procedures.
  • Previous studies indicated Lightspeed instruments might be undersized.

Purpose of the Study:

  • To evaluate the dimensional accuracy of Lightspeed cutting heads.
  • To compare measured diameters against expected values and tolerances.

Main Methods:

  • Six Lightspeed cutting heads of varying sizes (20, 22.5, 27.7, 30, 32.5, 45) were analyzed.
  • A modified optical micrometer was employed for precise diameter measurements.

Main Results:

  • Most cutting heads exceeded their expected diameters and the +/- 0.005 mm tolerance.
  • Size 20 exhibited the widest dimensional range; size 45 showed the largest mean deviations.

Related Experiment Videos

  • Observed dimensional increases differed from theoretical values for perfectly machined instruments.

    • Conclusions:

    • Lightspeed cutting heads may present manufacturing inconsistencies, with most being oversized.
    • Further investigation into dimensional accuracy across different manufacturing batches is warranted.