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Related Experiment Video

Updated: Mar 11, 2026

Force System with Vertical V-Bends: A 3D In Vitro Assessment of Elastic and Rigid Rectangular Archwires
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Evaluation of arch forms depending on the angle classification.

Farid Bourzgui1, Asmaa Khribchi1, Zineb Rachdy1

  • 1Département d'orthopédie dento-faciale, faculté de médecine dentaire, université Hassan II de Casablanca, rue Abou Alaa Zahar, 20200 Casablanca, Morocco.

International Orthodontics
|November 22, 2016
PubMed
Summary
This summary is machine-generated.

This study determined average Moroccan dental arch forms based on Angle classification. Findings reveal distinct maxillary and mandibular arch shapes, crucial for selecting appropriate orthodontic archwires.

Keywords:
Angle classesDental archformsMoroccoOrthodontics

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Area of Science:

  • Orthodontics
  • Dental Morphology
  • Biometrics

Background:

  • Individual dental arch forms vary.
  • Standardized orthodontic archwires may not suit all malocclusions, potentially impacting long-term stability.
  • Understanding population-specific arch forms is essential for effective treatment.

Purpose of the Study:

  • To establish the average dental arch form for a Moroccan population.
  • To analyze arch forms based on Angle classification.
  • To inform the selection of customized orthodontic archwires.

Main Methods:

  • Digitization of plaster dental models from 50 students (aged 21-27).
  • Application of the barycentric method to point clouds.
  • Superimposition of arch shapes using Photoshop CS 5 to determine average curves per Angle class.

Main Results:

  • Defined average maxillary and mandibular arch forms for Angle Classes I, II, and III.
  • Class I: Normal maxillary, ovoid mandibular.
  • Class II: Tapered maxillary, narrow tapered mandibular.
  • Class III: Narrow tapered maxillary and mandibular.
  • Overall dominant forms: Normal maxillary and ovoid mandibular.

Conclusions:

  • The Moroccan population exhibits unique dental arch features.
  • These findings can guide the selection of more appropriate preformed archwires.
  • Tailoring archwire selection to specific arch forms may improve orthodontic outcomes.