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Surgery First and Invisalign System: Combined Digital Approach.
Giulia Amodeo1,2, Simonetta Meuli3, Andrea Carboni1,2
1UOC Maxillofacial Department, San Filippo Neri Hospital, ASL Roma 1.
The Journal of Craniofacial Surgery
|July 14, 2020
Summary
This study shows that combining the inferior sagittal split osteotomy (IS) and the segmental Le Fort I osteotomy (SF) technique effectively treats severe Class III malocclusion, achieving stable long-term dental and skeletal results.
Area of Science:
- Orthodontics and Maxillofacial Surgery
- Dental Research
- Skeletal Class III Malocclusion Treatment
Background:
- Severe Class III malocclusion presents significant challenges in achieving stable and functional outcomes.
- Traditional treatment methods may have limitations in long-term stability and patient comfort.
Purpose of the Study:
- To evaluate the long-term dental and skeletal stability of combining the inferior sagittal split osteotomy (IS) and the segmental Le Fort I osteotomy (SF) technique.
- To assess symmetry, occlusion, and functional balance in patients treated with this combined approach.
Main Methods:
- Retrospective analysis of 12 severe Class III malocclusion cases.
- Treatment involved the combined use of the IS and SF techniques.
- Post-orthodontic follow-up at 1 year.
Main Results:
- All patients achieved Angle Class I occlusion with no bite discrepancies (deep bite, scissor bite, cross-bite, open bite).
- No temporomandibular joint (TMJ) discomfort or major post-surgical complications were reported.
- Surgical and occlusal results demonstrated excellent stability with no relapse.
Conclusions:
- The combined IS and SF technique protocol is a valid and effective method for managing severe Class III malocclusion.
- This approach leads to stable, functional, and aesthetically pleasing long-term outcomes.

