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

Do miniscrews remain stationary under orthodontic forces?

Eric J W Liou1, Betty C J Pai, James C Y Lin

  • 1Department of Orthodontics and Craniofacial Dentistry, Chang Gung Memorial Hospital and Graduate School of Craniofacial Medicine, Chang Gung University, 199 Tung-Hwa North Road, Taipei 105, Taiwan. lioueric@ms19.hinet.net

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
|June 30, 2004
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

Does Hand-Predominance Have a Predominant Influence on Craniofacial Asymmetric and Anthropometric Analysis in Preadolescences?

Diagnostics (Basel, Switzerland)·2024
Same author

Single-Splint, 2-Jaw Orthognathic Surgery for Correction of Facial Asymmetry: 3-Dimensional Planning and Surgical Execution.

The Journal of craniofacial surgery·2023
Same author

Velopharyngeal Function Change after 2-Jaw Orthognathic Surgery in Patients with Cleft: A Study of 162 Consecutive Cases.

Plastic and reconstructive surgery·2023
Same author

Occlusion-Based Three-Dimensional Craniofacial Anthropometric and Symmetric Evaluation in Preadolescences: A Comparative COHORT Study.

Journal of clinical medicine·2023
Same author

Long-Term Outcome of Primary Rhinoplasty with Overcorrection in Patients with Unilateral Cleft Lip: Avoiding Intermediate Rhinoplasty.

Plastic and reconstructive surgery·2023
Same author

Reply: Avoiding Inferior Alveolar Nerve Injury during Osseous Genioplasty: A Guide for the Safe Zone by Three-Dimensional Virtual Imaging.

Plastic and reconstructive surgery·2021

Orthodontic miniscrews provide stable anchorage but can move slightly under force. Careful placement is recommended to avoid vital structures during treatment.

Area of Science:

  • Orthodontics
  • Dental Implantology
  • Biomaterials Science

Background:

  • Miniscrews are increasingly utilized for orthodontic anchorage.
  • The absolute stability of miniscrews under orthodontic loading requires further investigation.

Purpose of the Study:

  • To evaluate the stability and potential movement of miniscrews used for maxillary anchorage during orthodontic treatment.
  • To assess miniscrew displacement under en masse anterior retraction forces.

Main Methods:

  • Sixteen adult patients received maxillary miniscrews for anchorage.
  • Cephalometric radiographs were taken before and after 9 months of orthodontic loading.
  • Miniscrew mobility was clinically assessed using a standardized scale.

Related Experiment Videos

Main Results:

  • All miniscrews demonstrated no clinical mobility (grade 0) at both time points.
  • On average, miniscrews exhibited a significant forward tip of 0.4 mm at the screw head.
  • Seven patients experienced miniscrew extrusion and forward tipping ranging from -1.0 to 1.5 mm.

Conclusions:

  • Miniscrews offer stable anchorage in orthodontics but are not entirely stationary during force application.
  • Some degree of miniscrew movement, including tipping and extrusion, can occur in certain patients.
  • Strategic placement in non-vital areas or with adequate safety clearance is crucial to prevent complications.