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Skeletal Class lll severe openbite treatment using implant anchorage.
Yuichi Sakai1, Shingo Kuroda, Sakhr A Murshid
1Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan.
The Angle Orthodontist
|January 16, 2008
Summary
Miniplates effectively corrected severe skeletal Class III anterior openbite in a teenage patient. This orthodontic approach achieved stable Class I occlusion and improved facial aesthetics.
Area of Science:
- Orthodontics
- Dental Implantology
Background:
- Skeletal Class III malocclusion and severe anterior openbite present significant orthodontic challenges.
- Traditional methods for correcting these severe cases often require complex anchorage systems.
Observation:
- A 15-year-old female presented with a severe skeletal Class III anterior openbite, -3.0 mm overjet, -5.0 mm overbite, and Class III molar relationship.
- Cephalometric analysis confirmed a skeletal Class III relationship (ANB 0 degrees).
Findings:
- Treatment involved bilateral mandibular third molar extraction and miniplate placement for anchorage.
- Mandibular dentition retraction using elastic chains and miniplates resulted in an Angle Class I molar relationship, 2.0 mm overjet, and 1.5 mm overbite.
- The 23-month orthodontic treatment yielded improved facial appearance, stable occlusion, and resolved circumoral muscle strain.
Implications:
- Miniplate anchorage offers a viable and effective solution for correcting severe skeletal Class III anterior openbite.
- This technique can achieve favorable occlusal and facial outcomes with minimal root resorption.
- The findings support the use of implant anchorage in complex orthodontic cases.
