Effects of Micro-Osteoperforation Depths on Canine Retraction Rate and Root Resorption: A Systematic Review and...

Area of Science:

• Orthodontics
• Periodontology
• Biomaterials

Background:

• Canine retraction is a key phase in orthodontic treatment.
• Root resorption is a potential complication of orthodontic tooth movement.
• Micro-osteoperforations (MOPs) are a minimally invasive surgical technique proposed to accelerate orthodontic tooth movement.

Purpose of the Study:

• To systematically review and meta-analyze the effect of different micro-osteoperforations (MOPs) depths on canine retraction speed.
• To evaluate the impact of MOPs on the incidence and severity of root resorption during canine retraction.

Main Methods:

• Systematic review and random-effect meta-analysis of 14 randomized controlled trials.
• Literature search conducted across major scientific databases until May 2024.
• Data analyzed for mean difference in canine retraction rates and root resorption between MOPs and control groups.

Main Results:

• MOPs significantly increased canine retraction rates compared to controls at depths of 2-4mm (0.32 mm/month) and 5-7mm (0.20 mm/month).
• No significant differences in root resorption were found between MOP groups and control groups across the studied depths.
• The findings indicate MOPs as an effective adjunct for accelerating canine retraction without compromising root integrity.

Conclusions:

• Micro-osteoperforations (MOPs) are effective in accelerating canine retraction in orthodontic patients.
• The depth of MOPs (2-7mm) influences the acceleration rate but does not appear to increase the risk of root resorption.
• MOPs represent a promising adjunctive treatment for reducing orthodontic treatment duration.