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Updated: May 9, 2026

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3D Imaging of PDL Collagen Fibers during Orthodontic Tooth Movement in Mandibular Murine Model
Published on: April 15, 2021
Mini-implants: mechanical resource for molars uprighting.
Susiane Allgayer1, Deborah Platcheck, Ivana Ardenghi Vargas
1Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre / RS, Brazil. susianeallgayer@gmail.com
Dental Press Journal of Orthodontics
|July 24, 2013
Summary
Early orthodontic treatment can correct skeletal issues and bad habits. This case report details using mini-implants to upright impacted mandibular second molars in a two-phase Angle Class II malocclusion treatment.
Area of Science:
- Orthodontics
- Dental Implantology
Background:
- Early orthodontic intervention corrects skeletal discrepancies and eliminates harmful habits, facilitating later tooth positioning.
- Mandibular second molars often erupt late, increasing the risk of impaction, which necessitates specific uprighting treatment.
- Temporary anchorage devices (TADs) enable direct disimpaction and movement of impacted teeth without patient compliance.
Observation:
- This case report presents a two-phase treatment approach for an Angle Class II malocclusion.
- The treatment focused on uprighting impacted mandibular second molars using mini-implants.
Findings:
- Mini-implants effectively facilitated the disimpaction and precise movement of impacted mandibular second molars.
- The use of TADs allowed for direct tooth movement, bypassing the need for patient cooperation or compensatory arch movements.
Implications:
- Mini-implants offer a viable solution for managing impacted mandibular second molars in orthodontic treatment.
- This approach simplifies treatment complexity and improves outcomes for Angle Class II malocclusions with impacted molars.

