Dentoalveolar class III treatment using retromolar miniscrew anchorage

Area of Science:

• Orthodontics
• Dental Implantology

Background:

• Angle class III malocclusion presents challenges, especially in dolichofacial patients with lower anterior crowding.
• Conventional methods for lower dentition distalization have limitations, including patient cooperation and anchorage issues.
• Minimizing vertical extrusion is crucial in long-faced patients with reduced overbite.

Observation:

• Miniscrews were placed in the retromolar area after third molar extractions.
• A sliding jig facilitated the distalization of lower molars.
• Anterior teeth were subsequently retracted to prevent undesirable tooth movement.

Findings:

• Successful distalization of the lower dentition was achieved using miniscrews.
• An 18-month treatment resulted in molar and canine class I relationships with normal overjet and overbite.
• Esthetic improvement in facial profile was noted, with minimal increase in lower anterior facial height.
• Treatment outcomes remained stable at a 12-month follow-up.

Implications:

• Miniscrews offer a viable alternative for distalizing the lower dentition in complex malocclusions.
• This approach can effectively manage Angle class III malocclusion in adult patients, particularly those with dolichofacial patterns.
• The technique provides stable and esthetic results, addressing limitations of traditional orthodontic appliances.