Class III Growth Case
- Early mixed dentition stage
- Anterior cross-bite, unilateral posterior left buccal cross-bite associated with a functional shift of the mandible toward the left side
- Molar super Class I bilaterally which indicates in this age a tendency toward Class III due to mesial migration of the lower 1st permanent using leeway space
- Reverse overjet
- In general, the Maxilla shows under developmental growth in relation to the mandible in antero-poserior and transverse plane
Diagnosis
- Class III Skeletal due to Maxillary retrognathism
- Dental Class I Molar, a tendency toward Class III, Anterior cross-bite and unilateral posterior buccal cross-bite which is associated with the functional shift of the mandible
- Phonetic problem in production of linguostops sounds, /t/ and /d/
Treatment Plan
- Expansion of the maxilla (three-sided expansion)
- Protrusion of the maxilla using Reverse headgear (delare mask), long duration of active retention
- Lingual arch to reduce mesial migration of the lower permanent molars (still have some force of eruption, multi-rooted teeth)
- May need fixing orthodontic therapy in the future with or without orthognathic surgery at the adulthood
