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Updated: May 12, 2026

An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
Comparative evaluation of anchorage loss and canine retraction rate using mini-implant anchorage versus conventional
Sunanda Paul1, Md Kalim Ullah2, Shahnaz Hamza3
1Department of Orthodontics Dentofacial and Orthopaedics, Government Dental College and Hospital, Silchar, Assam, India.
Abstract:
Orthodontic anchorage control during space closure is critical to prevent unwanted tooth movement, prolong treatment and maintain facial aesthetics. This randomised controlled trial compared mini-implant versus conventional molar anchorage (transpalatal arch) in 40 premolar extraction patients for bilateral canine retraction over 3 months. Mini-implants significantly reduced anchorage loss (0.42±0.31 mm versus 2.18±0.67 mm, p<0.001) compared to conventional anchorage. Canine retraction rates were superior with mini-implants (1.24±0.28 mm/month versus 0.89±0.22 mm/month, p<0.001). Mini-implant anchorage provides superior preservation and faster canine retraction, establishing it as the preferred choice for maximum anchorage needs.

