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

Blood flow changes in permanent maxillary canines during retraction

F McDonald1, T R Pitt Ford

  • 1Department of Oral Biology, Orthodontics/Physiology, UMDS of Guy's Hospital, London.

European Journal of Orthodontics
|February 1, 1994
PubMed
Summary
This summary is machine-generated.

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

ESMO-ESTRO consensus statements on the safety of combining radiotherapy with EGFR, ALK, or BRAF/MEK inhibitors.

ESMO open·2026
Same author

Real-world 5-year outcomes with durvalumab after chemoradiotherapy in unresectable stage III NSCLC.

ESMO open·2026
Same author

Establishing a National SABR Service: A Model for Safe and Effective Clinical Implementation.

Clinical oncology (Royal College of Radiologists (Great Britain))·2025
Same author

Reconsidering Governance Models to Strengthen Rural Healthcare.

Journal of bioethical inquiry·2025
Same author

Quality Indicators and Benchmarks for Radiotherapy in Lung Cancer: A Modified Delphi Approach.

Clinical oncology (Royal College of Radiologists (Great Britain))·2025
Same author

A training framework for multi-professional advanced level practice in non-surgical oncology: The journey through development and consultation to consensus.

Radiography (London, England : 1995)·2024

External load significantly impacts maxillary canine tooth blood flow. Initial decrease followed by a prolonged increase, similar to reactive hyperemia, was observed using laser Doppler flowmetry.

Area of Science:

  • Dental research
  • Physiology

Background:

  • Understanding the physiological response of teeth to external forces is crucial in orthodontics and restorative dentistry.
  • Maxillary canine teeth are key structures in dental occlusion and are often subjected to significant forces.

Purpose of the Study:

  • To investigate the effect of a sustained external load on blood flow within permanent maxillary canine teeth.
  • To characterize the temporal changes in dental pulp blood flow following mechanical loading.

Main Methods:

  • Laser Doppler flowmetry (LDF) was used to measure blood flow in 10 maxillary canine teeth.
  • A 50 g force was applied via a removable appliance, with measurements taken before, during, and after loading.
  • A specialized splint ensured probe stability while allowing tooth movement.

Related Experiment Videos

Main Results:

  • Application of load initially decreased blood flow, followed by a statistically significant increase after approximately 32 minutes.
  • Elevated blood flow persisted for 24-48 hours, returning to baseline within 72 hours.
  • In some cases, reduced blood flow persisted as long as the load was applied.

Conclusions:

  • Sustained external load induces a biphasic blood flow response in maxillary canine teeth: initial reduction followed by reactive hyperemia.
  • The observed response, though similar to reactive hyperemia, exhibits a significantly longer time course.
  • These findings have implications for understanding tooth vitality and adaptation to orthodontic or occlusal forces.