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

Three biologic variables modifying faciolingual tooth angulation by straight-wire appliances.

N Germane1, B E Bentley, R J Isaacson

  • 1School of Dentistry, Medical College of Virginia/Virginia Commonwealth University, Richmond.

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
|October 1, 1989
PubMed
Summary

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

The Edward H. Angle Society of Orthodontists 2001: a North American or an international society?

The Angle orthodontist·2002
Same author

Moving an ankylosed central incisor using orthodontics, surgery and distraction osteogenesis.

The Angle orthodontist·2001
Same author

Orthodontics and the health care industry.

The Angle orthodontist·2001
Same author

Patient assurance of quality orthodontic care.

The Angle orthodontist·2001
Same author

A précis of the Proceedings of the First International Orthodontic Editors' Symposium, 28 April 2000.

Journal of orthodontics·2000
Same author

What is our standard of care?

The Angle orthodontist·2000

Facial tooth contours vary significantly, even among teeth of the same type. These variations exceed standard orthodontic torque prescriptions, suggesting personalized bracket design is needed.

Area of Science:

  • Dentistry
  • Orthodontics
  • Dental Anatomy

Background:

  • Standard orthodontic torque prescriptions are based on assumptions of tooth contour uniformity.
  • Individual variations in tooth anatomy can influence treatment outcomes.
  • Accurate dental measurements are crucial for effective orthodontic interventions.

Purpose of the Study:

  • To quantify the variability of facial surface contours in human maxillary and mandibular teeth.
  • To compare the observed variations with existing standard torque prescriptions in orthodontics.
  • To assess the implications of tooth contour variability for custom bracket design and treatment planning.

Main Methods:

  • Measurement of facial surface contours on 600 teeth (50 each of central incisors to first molars) from both jaws.

Related Experiment Videos

  • Analysis of contour variations at specific locations, from occlusal/incisal to gingival surfaces.
  • Evaluation of the angle between coronal and radicular long axes for each tooth.

    • Main Results:

    • Significant variations in facial contours and long axis angles were observed among teeth of the same type.
    • The magnitude of variation suggests patient-specific factors and bracket placement height are more influential than standard torque.
    • No single point, including the coronal midpoint (long axis point), remained constant across teeth of the same type.
    • Facial surface contour variation was generally greater in posterior teeth compared to anterior teeth.

    Conclusions:

    • Individual tooth facial contour variability is substantial and exceeds current standard orthodontic torque prescriptions.
    • Custom bracket fabrication tailored to individual tooth anatomy is a future necessity.
    • Optimal tooth positioning requires consideration of patient-specific facial skeletal patterns and individual tooth contour variations.