title: Success rate of microimplants in a university orthodontic clinic.
abstract: 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.
authors.affiliation: Department of Orthodontics and Dentofacial Orthopaedics, Manipal College of Dental Sciences, Manipal University, Manipal 576104, KRN, India.
authors.forename: P
authors.initials: P
authors.lastname: Sharma
authors.forename: A
authors.initials: A
authors.lastname: Valiathan
authors.forename: A
authors.initials: A
authors.lastname: Sivakumar
references.citation: J Clin Orthod. 1999 Dec;33(12):689-96
references.pmid: 10895661
references.citation: Clin Oral Implants Res. 2007 Dec;18(6):768-75
references.pmid: 17868386
references.citation: Am J Orthod Dentofacial Orthop. 2003 Oct;124(4):373-8
references.pmid: 14560266
references.citation: Angle Orthod. 2008 Jan;78(1):101-6
references.pmid: 18193973
references.citation: Am J Orthod Dentofacial Orthop. 2009 Aug;136(2):158.e1-10; discussion 158-9
references.pmid: 19651342
references.citation: Clin Oral Implants Res. 2007 Apr;18(2):263-7
references.pmid: 17348892
references.citation: Int J Neurosci. 2001 Jul;109(1-2):1-9
references.pmid: 11699335
references.citation: J Clin Orthod. 1997 Nov;31(11):763-7
references.pmid: 9511584
references.citation: Am J Orthod Dentofacial Orthop. 2006 Jul;130(1):18-25
references.pmid: 16849067
references.citation: Prog Orthod. 2007;8(1):192-201
references.pmid: 17580417
references.citation: Clin Orthod Res. 2000 Feb;3(1):23-8
references.pmid: 11168281
references.citation: J Clin Orthod. 2001 Jul;35(7):417-22
references.pmid: 11494827
references.citation: Am J Orthod Dentofacial Orthop. 2007 Jan;131(1):9-15
references.pmid: 17208101
references.citation: Int J Oral Maxillofac Implants. 2004 Jan-Feb;19(1):100-6
references.pmid: 14982362