Orthodontic Interventions for Skeletal Class III Malocclusion

Skeletal Class III malocclusion arises when the lower jaw outgrows or the upper jaw undergrows relative to each other, producing a concave facial profile and negative overjet. Interventions aim to correct jaw relationships and dental alignment, often leveraging growth potential in children and adolescents. Orthopaedic approaches include facemask therapy combined with rapid palatal expansion to stimulate forward displacement of the maxilla, sometimes augmented by skeletal anchorage with mini-implants. Functional appliances such as chin cups may redirect mandibular growth. In older adolescents and adults, treatment may entail orthodontic camouflage—dental compensation through incisor tipping—or orthognathic surgery to reposition jaws. Advances in three-dimensional imaging, computer-aided design/manufacture and finite element modelling have refined appliance design and force application, improving precision, comfort and patient compliance. Treatment timing, individual growth patterns and anchorage methods critically determine outcomes. Global research underscores the importance of personalised, minimally invasive strategies that balance skeletal correction, dental health and long-term stability.

Research from Nature Portfolio

Recent studies have identified that nearly half of children undergoing facemask therapy develop irritant contact dermatitis at appliance contact points. Skin reactions are more frequent in younger patients and females and correlate with temporomandibular discomfort. Clinicians are advised to inspect skin integrity at each visit and to counsel families on prophylactic measures and prompt management to maintain appliance wear and optimise skeletal correction.

Orthodontic Interventions for Skeletal Class III Malocclusion publication trend

The graph below shows the total number of articles in orthodontic interventions for skeletal class iii malocclusion across all publications each year (not limited to Nature Index journals).

Technical terms

Skeletal Class III malocclusion: A jaw relationship with mandibular prominence or maxillary deficiency.

Maxillary protraction: Orthopaedic force application to advance the upper jaw forward.

Intermaxillary elastics: Rubber bands connecting upper and lower dental or skeletal anchors.

Miniscrew anchorage: Use of small titanium implants to provide stable skeletal support.

Hybrid Hyrax: A bone-anchored rapid palatal expander combining miniscrews and conventional framework.

ANB angle: Cephalometric measure of sagittal jaw discrepancy (maxilla vs. mandible).

Wits appraisal: Cephalometric assessment quantifying antero-posterior jaw relationship.

CAD/CAM: Computer-aided design and manufacturing for precise appliance fabrication.

References

1. Maxillary protraction using a hybrid hyrax-facemask combination. Progress in Orthodontics (2013).
2. Radiographic Imaging for the Diagnosis and Treatment of Patients with Skeletal Class III Malocclusion. Diagnostics (2024).
3. Finite element analysis of maxillary orthodontic therapies with variable alveolar bone grafts under occlusal forces in patient with unilateral cleft lip and palate. Frontiers in Bioengineering and Biotechnology (2024).
4. Concept for the Treatment of Class III Anomalies with a Skeletally Anchored Appliance Fabricated in the CAD/CAM Process—The MIRA Appliance. Bioengineering (2023).
5. Skin irritation in children undergoing orthodontic facemask therapy. Scientific Reports (2023).
6. Dentofacial effects of miniscrew-anchored maxillary protraction on prepubertal children with maxillary deficiency: a randomized controlled trial. Progress in Orthodontics (2023).
7. Customized Facial Orthopedics: Proof of Concept for Generating 3D-Printed Extra-Oral Appliance for Early Intervention in Class III Malocclusion. Prosthesis (2024).
8. Treatment decision in adult patients with class III malocclusion: surgery versus orthodontics. Progress in Orthodontics (2018).