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Micro-osteoperforations' impact on orthodontic tooth movement rate: Split mouth research
Irfan Bashir1, Syed Zameer Khurshaid1, Nayeem Ul Haq Khanday1
1Department of Orthodontics and Dentofacial Orthopaedics, Government Dental College, Srinagar, Jammu & Kashmir, India.
Bioinformation
|June 12, 2026
Summary
Micro-osteoperforations (MOPs) significantly speed up orthodontic canine retraction within the first four weeks of treatment. This minimally invasive technique enhances tooth movement without increasing tipping, anchorage loss, or patient discomfort.
Area of Science:
- Orthodontics
- Periodontology
Background:
- Micro-osteoperforations (MOPs) are a minimally invasive surgical procedure.
- MOPs enhance osteoclastic activity, potentially accelerating tooth movement and reducing orthodontic treatment duration.
Purpose of the Study:
- To evaluate the effectiveness of MOPs in accelerating orthodontic canine retraction.
- To assess the impact of MOPs on tooth movement rate, tipping, anchorage loss, and patient comfort.
Main Methods:
- A randomized controlled trial involving 16 participants undergoing fixed orthodontic treatment.
- Maxillary first premolars were extracted, followed by alignment and leveling.
- MOPs were performed on the experimental side of the maxillary arch.
- A 150-gram force was applied using NiTi closed coil springs for canine retraction on both experimental and control sides.
- Tooth movement was measured at 4, 8, and 12 weeks.
Main Results:
- MOPs demonstrated a significant acceleration of orthodontic tooth movement during the initial 4 weeks of canine retraction.
- No increase in tipping, anchorage loss, or patient discomfort was observed with the MOPs technique.
Conclusions:
- Micro-osteoperforations are effective in accelerating the rate of canine retraction in the early stages of orthodontic treatment.
- MOPs offer a safe and efficient adjunct to fixed orthodontic therapy, without adverse effects.

