Vertical-dimension control during en-masse retraction with mini-implant anchorage

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
Madhur UpadhyayRavindra Nanda

Abstract

Vertical dimension control with fixed appliance mechanotherapy has always been a matter of concern in moderate to severe high-angle patients with severe proclination of the anterior teeth. Extrusion of the posterior teeth is an inevitable sequela of conventional mechanics in such patients, especially if they are adults. This article reports on 3 patients who were treated with mini-implants (diameter, 1.3 mm; length, 8 mm) placed between the roots of the second premolar and the first molar for en-masse retraction of the anterior teeth. The biomechanical force system that developed not only maintained absolute anchorage, but also provided effective control over the posterior dentoalveolar dimension so that dramatic improvement in facial esthetics could be achieved. Small but significant autorotation of the mandible was noted; this led to increased chin prominence in all 3 patients. With accurate diagnosis and treatment planning, mini-implant anchorage can be a possible alternative to orthognathic surgery in similar borderline patients.

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Citations

Apr 5, 2011·L' Orthodontie française·Claire PernierCaroline Diemunsch
Sep 27, 2013·European Journal of Orthodontics·Ravindra Nanda, Madhur Upadhyay
Dec 31, 2014·Case Reports in Dentistry·Irfan QamruddinWafa Zehra Jamal
Mar 19, 2014·International Journal of Oral and Maxillofacial Surgery·F Hernández-Alfaro, R Guijarro-Martínez
Feb 22, 2011·International Journal of Oral and Maxillofacial Surgery·J-H WuC-M Chen
Aug 21, 2014·Journal of Orthodontics·Madhur UpadhyayRavindra Nanda
Apr 4, 2015·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Hiroaki IwaiNoriyoshi Shimizu
Feb 6, 2014·Dental press journal of orthodontics·Antônio Carlos de Oliveira Ruellas
Aug 28, 2014·Dental press journal of orthodontics·Ricardo Moresca
Mar 8, 2018·Journal of Investigative and Clinical Dentistry·Shehab A AlyYehya A Mostafa
Apr 5, 2011·L' Orthodontie française·Laurent Morgon
Dec 5, 2020·Orthodontics & Craniofacial Research·Sung-Hwan ChoiChung-Ju Hwang

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