The use of micro-screws (mini-implant) in anchorage reinforcement in orthodontics. - ROS - 2006 - Tome 35 - N°2

The aim of the present study was to evaluate the efficacy and the stability of mini-implants used for anchorage control from a detailed review of the literature and an observation of 16 mini-implants inserted in 9 patients. Implantation sites were selected following careful anamnesis and radiographic evaluation according to treatment objectives. Two different brands of mini-implants were used and size selection was made based on the anatomical site. Immediate load was applied in 13 mini-implants. Success of the mini-implants was considered when both efficacy and stability were achieved during orthodontic treatment. Despite the limited number of the sample evaluated, mini-implants were demonstrated to be effective in anchorage reinforcement, since 13 out of 16 mini-implants were successful. However, the possibility of failure should be discussed with the patient prior to the treatment.