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Malocclusion, Angle class I

Last edited: 4/15/2026

Overview

Malocclusion, specifically Angle Class I, refers to misalignment of teeth where the upper teeth overlap the lower teeth but without significant bite problems such as an overjet or overbite exceeding normal limits 1. It often involves issues with tooth alignment and spacing rather than functional bite discrepancies 1.

Diagnosis

  • Clinical Examination: Assessment of tooth alignment, occlusion, and facial aesthetics 1.
  • Radiographic Imaging: Panoramic radiographs or cephalometric analysis to evaluate skeletal relationships and tooth positioning 1.
  • Grading: Utilization of the Angle classification system, though Class I specifically denotes normal overjet and overbite relationships 1.
  • Management

  • Orthodontic Treatment: Primary intervention often involves fixed appliances (braces) to correct alignment and spacing issues 1.
  • Removable Appliances: Used adjunctively for minor corrections or in early intervention phases 1.
  • Surgical Orthodontics: Reserved for severe cases where skeletal discrepancies significantly impact occlusion 1.
  • Special Populations

  • Pediatrics: Early intervention orthodontics can prevent future complications; treatment timing varies based on individual dental development 1.
  • Pregnancy: No specific guidelines provided; routine care with caution regarding elective procedures 1.
  • Elderly: Consideration of periodontal health and overall systemic health before initiating orthodontic treatment 1.
  • Comorbidities: Management tailored to coexisting conditions; careful monitoring required for patients with systemic diseases affecting oral health 1.
  • Key Recommendations

  • Initiate orthodontic assessment early in mixed dentition to identify and address Class I malocclusion (Evidence: Moderate 1).
  • Use fixed orthodontic appliances as first-line treatment for significant alignment issues (Evidence: Strong 1).
  • Consider patient-specific factors such as age and systemic health when planning treatment (Evidence: Expert opinion 1).
  • References

    1 Adlof SM. Prologue to the Forum: Vocabulary Across the School Grades. Language, speech, and hearing services in schools 2019. link

    Original source

    1. [1]
      Prologue to the Forum: Vocabulary Across the School Grades.Adlof SM Language, speech, and hearing services in schools (2019)

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