J. Orthod.
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Journal of Orthodontics, Vol. 35, No. 2, 79-89, June 2008 doi:10.1179/146531207225022491
© 2008 British Orthodontic Society
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Clinical Section

Mini-implants for en masse intrusion of maxillary anterior teeth in a severe Class II division 2 malocclusion

Madhur Upadhyay

Division of Orthodontics, University of Connecticut, Health Center, Farmington, CT, USA

K. Nagaraj

Department of Orthodontics, KLES’ Institute of Dental Sciences, Belgaum, India

Sumit Yadav

Department of Oral Biology, Indiana School of Dentistry, Indiana University, Indianapolis, IN, USA

Ruchi Saxena

Department of Orthodontics, KLES’ Institute of Dental Sciences, Belgaum, India

Address for correspondence: Madhur Upadhyay, University of Connecticut Health Center, Division of Orthodontics, Department of Craniofacial Sciences, 263 Farmington Avenue, Farmington, CT 06030, USA. Email: madhurup{at}yahoo.com


  Abstract

This case report describes the treatment of a 16-year-old post pubertal male patient with a severe Class II division 2 malocclusion and 100% deep bite. In the first phase of treatment, a ‘Jones-Jig’ molar distalization appliance was used to distalize the maxillary molars by more than 6 mm, to achieve a Class I molar relation. In the second phase of treatment, mini-implants were inserted between the roots of the maxillary lateral incisor and canine to intrude all the maxillary anterior teeth en masse in a single step. Four millimetres of intrusion was achieved. The implants remained stable throughout treatment. In the mandibular arch the incisors were proclined to alleviate the severe crowding. Good overjet and overbite was achieved and has been maintained one year after completion of active orthodontic treatment.

Key words: Deep bite, intrusion, mini-implants






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