Crowding Exo Case
- Class I molar and canine relationship
- Overjet 1 mm. , Overbite 2 mm
- Lower midline shift 2 mm to the right
- Buccally malposed canines in the upper bilaterally & lower right side
- LL5 in buccal crossbite
- Space deficiency in the upper arch 8 mm
- Space deficiency in the lower 6 mm + 2 mm midline shift ( take in consideration lower incisor proclination by 4 degrees which will add 2 mm deficiency), so total 10 mm
Diagnosis & Conclusion
Class I malocclusion (crowding) due to tooth /arch size discrepancy
Class I Skeletal and Dental relationship
Class I malocclusion (severe crowding in the upper & lower dental arch) due to the disproportion between tooth size/arch size (discrepancy)
The amount of space deficiency, overbite, lower incisor proclination, lower midline shift, class I molar relationship & soft tissue profile would prefer an Extraction solution for treating the crowding
Treatment Plan
Fixed orthodontic therapy includes:
- TPA and LA (high anchorage needed)
- EXO. of the 1st premolars
- Sectional retraction of the buccally malposed canines
- Correct lower midline shift
- Space closure
- Finishing and Retention
