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Related Experiment Video

Updated: Jan 19, 2026

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
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Headgear-induced temporary pressure alopecia.

Catherine Liu1, Faisal Abbas2, Jadbinder Seehra2

  • 1Department of Paediatric Dentistry, Dental Centre, St Thomas' Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK.

Journal of Orthodontics
|September 20, 2019
PubMed
Summary

Orthodontic headgear can cause temporary pressure alopecia, a rare form of hair loss. This condition, linked to mechanical pressure, typically resolves after discontinuing headgear use.

Keywords:
headgearhealth services and quality of life aspectsmechanicsprotraction headgearpsychological aspects of orthodonticsquality of life and orthodontics

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Area of Science:

  • Dermatology
  • Orthodontics

Background:

  • Pressure alopecia is localized, non-scarring hair loss from mechanical causes.
  • Prolonged immobility, genetic, and immune factors can contribute.
  • Extended mechanical trauma risks permanent follicle damage via hypoxia.

Purpose of the Study:

  • To report a rare case of temporary pressure alopecia in a patient using orthodontic headgear.
  • To highlight the psychosocial impact of hair loss in adolescents.

Main Methods:

  • A 13-year-old boy used high-pull orthodontic headgear.
  • Hair loss was observed in areas of headgear contact within four weeks.
  • Diagnosis was confirmed by hair regrowth after discontinuing headgear.

Main Results:

  • Localized hair loss occurred within four weeks of headgear use.
  • The hair loss corresponded to the headgear's force delivery modules.
  • Hair regrowth was observed after headgear removal.

Conclusions:

  • Temporary pressure alopecia is a rare side effect of orthodontic headgear.
  • Alopecia can significantly impact psychosocial well-being.
  • Regular monitoring and avoiding excessive pressure are crucial for headgear patients.