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Three dimensional movement analysis of maxillary impacted canine using TADs: a pilot study
Marco Migliorati1, Lucia Cevidanes2, Giordana Sinfonico3
1Orthodontics Department, School of Dentistry University of Genova largo Rosanna Benzi, 10 16132, Genoa, Italy. marco.migliorati@gmail.com.
Head & Face Medicine
|January 16, 2021
Summary
This pilot study found no significant difference in canine disimpaction speed between miniscrew and trans palatal arch anchorages. Both systems showed similar canine tip and root movement over three months.
Area of Science:
- Orthodontics
- Dental Implantology
Background:
- Impacted maxillary canines are a common orthodontic challenge.
- Effective anchorage is crucial for successful canine disimpaction.
- This study compares miniscrews and trans palatal arches (TPAs) for canine disimpaction.
Purpose of the Study:
- To compare the efficiency of miniscrew versus TPA anchorage for disimpacting maxillary canines.
- To evaluate canine tip and root movement using superimposed Cone Beam Computed Tomography (CBCT).
Main Methods:
- A randomized clinical trial with two parallel groups (miniscrew vs. TPA anchorage).
- Calibrated traction force of 50g applied to impacted canines.
- CBCT scans before and after 3 months of traction were superimposed for analysis.
Main Results:
- No significant differences were observed between the miniscrew and TPA groups in apex or tip displacement.
- Average canine tip movement ranged from 1.08 to 1.96 mm/month.
- Average apex root movement ranged from 0.4 to 0.8 mm/month.
Conclusions:
- This pilot study found no evidence that miniscrew anchorage is faster than TPA anchorage for canine disimpaction.
- Both anchorage systems demonstrated comparable efficacy in canine movement.
- No miniscrew failures were reported during the study.
