Treatment planning in Class III malocclusion

Area of Science:

• Dentistry
• Orthodontics
• Craniofacial Biology

Background:

• Class III malocclusion is characterized by reduced or reversed overjet and potential lingual crossbite.
• Treatment approaches differ based on the severity of skeletal discrepancy and the patient's stage of dental and skeletal development.

Purpose of the Study:

• To provide dental professionals with comprehensive information on the etiology, assessment, diagnosis, and treatment of Class III malocclusions.
• To discuss orthodontic treatment options at various stages of dental development and skeletal growth.

Main Methods:

• Review of orthodontic treatment strategies for Class III malocclusion.
• Discussion of treatment considerations for mild, moderate, and severe skeletal discrepancies.
• Analysis of treatment timing in relation to mixed and permanent dentition and skeletal growth.

Main Results:

• Mild skeletal discrepancies in early mixed dentition or older patients are often managed with maxillary incisor proclination.
• Established permanent dentition with mild-moderate discrepancies may be treated with compensatory incisor movements.
• Severe skeletal discrepancies in adolescents and non-growing patients necessitate combined orthodontic treatment and orthognathic surgery.

Conclusions:

• Treatment planning for Class III malocclusion requires careful consideration of skeletal discrepancy, growth potential, and dentition stage.
• Adolescent patients with moderate-to-severe discrepancies may benefit from maxillary arch alignment, with orthognathic surgery planned post-growth.
• Understanding the nuances of treatment timing and modality is crucial for achieving stable Class I occlusions.