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Quintessence Publishing: Journals: ORTHODONTICS
ORTHODONTICS
The Art and Practice of Dentofacial Enhancement

Formerly World Journal of Orthodontics

Edited by
Rafi Romano, DMD, MSc (Editor-in-Chief)

ISSN 2160-2999 (print) / ISSN 2160-3006 (online)

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Publication:
Spring 2011
Volume 12 , Issue 1

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Modification Of The Bidimensional System

Daniel J. Rinchuse, DMD, MS, MDS, PhD/Donald J. Rinchuse, DMD, MS, MDS, PhD

Pages: 10–21
PMID: 21789286

In the mid 1970s, Schudy and Schudy developed and described an edgewise bimetric system in which there were brackets with 0.016-inch slots on the incisors and canines and brackets with 0.022-inch slots on the premolars and molars. Modeling after Schudy and Schudy, Gianelly devised a similar, preadjusted system called the bidimensional system, in which the incisor brackets have 0.018-inch slots while the remaining teeth have brackets with 0.022-inch slots. We have further modified the bidimensional system and developed a dual-slot system. Hence, this article compares the bidimensional and dual-slot systems and provides justification for both. The main concerns regarding the bidimensional and dual-slot systems are posterior “play” and lack of three-dimensional control. We rationalize both as well as the self-ligating hybrid and dual-slot system. Orthodontics 2011;12:10–21.

Key words: bidimensional, bimetric, self-ligating, dual slot

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