Table of Contents
ISRN Surgery
Volume 2011, Article ID 982671, 6 pages
Research Article

Success Rate of Microimplants in a University Orthodontic Clinic

1Department of Orthodontics and Dentofacial Orthopaedics, Manipal College of Dental Sciences, Manipal University, Manipal 576104, KRN, India
2Department of Orthodontics, Al-Fateh University of Medical Sciences, P.O. Box 13040, Tripoli, Libya

Received 20 February 2011; Accepted 6 April 2011

Academic Editors: M. Chiarugi, M. B. Habal, and M. Weinlaender

Copyright © 2011 P. Sharma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Introduction. The purpose of this study was to examine the success rate and find factors affecting the clinical success of microimplants used as orthodontic anchorage. Methods. Seventy-three consecutive patients (25 male, 48 female; mean age, 22.45 years) with a total of 139 screw implants of 2 types were examined. Success rate was determined according to 18 clinical variables. Results. The overall success rate was 87.8%. The clinical variables of microimplant factors (type), patient factors (sex, skeletal and dental relationships, overbite, jaw involved, side involved and site involved), and treatment factors (type of insertion, time of loading, purpose of microimplant insertion, mode of loading, type of anchorage used, direction of forces applied) did not show any statistical difference in success rates. Mandibular angle, vertical position of implant placement, oral hygiene status, and inflammation showed significant difference in success rates. Conclusions. Proper case selection and following the recommended protocol are extremely essential to minimise failures.