For patients in the mixed dentition with a Class III malocclusion

Myobrace Interceptive Class III Stage 1 is the first appliance in a three-stage treatment system for children with a Class III malocclusion during the mixed dentition. It encourages healthy upper jaw development, improves breathing, and corrects poor oral habits. As a result, it helps create a strong foundation for orthodontic treatment and long-term stability.

Many Class III malocclusions develop because the upper jaw (maxilla) does not grow fully. Therefore, early treatment focuses on encouraging healthy maxillary arch development. At the same time, it corrects the habits that contribute to poor jaw growth. In addition, clinicians often combine the appliance with the BWS and Myolay™ arch development techniques to achieve better treatment outcomes.

Establish nasal breathing and correct oral habits

The i-3N appliance helps children establish nasal breathing. It also introduces myofunctional habit correction from the beginning of treatment. Its soft, flexible material adapts comfortably to different arch forms and malocclusions. As a result, patients experience greater comfort and better compliance.

Small breathing holes encourage continuous nasal breathing. Meanwhile, the appliance’s built-in myofunctional features promote healthy tongue posture and correct oral habits. Once patients wear the appliance comfortably overnight and develop consistent nasal breathing, they can progress to the i-3® appliance.

Design features

The Myobrace Interceptive Class III Stage 1 appliance includes several features that support healthy oral development and improve treatment outcomes.

• Soft, flexible material adapts comfortably to different arch forms and malocclusions.
• Small breathing holes encourage continuous nasal breathing.
• A tongue tag guides correct tongue tip positioning.
• A tongue elevator encourages the tongue to rest naturally against the roof of the mouth.
• High side walls keep the soft tissues away from the dental arches. Consequently, they support maxillary arch development and improve appliance retention.

Why choose Myobrace Interceptive Class III Stage 1?

Myobrace Interceptive Class III Stage 1 treats the underlying causes of Class III malocclusions instead of focusing only on tooth alignment. By encouraging nasal breathing, improving tongue posture, and supporting healthy jaw development, it helps deliver more predictable orthodontic outcomes. Furthermore, early treatment promotes greater long-term stability during the mixed dentition.