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Original Article

Rationality of bi-dimensional orthodontic technique and non-extraction therapy

2012, Volumen 42, Número 4
John R. Bednar, M. Gabriela Márquez, Katherine A. Bednar
Catedrático Clínico. Colaborador de Ortodoncia. Departamento de Ortodoncia. Facultad de Medicina Dental. Universidad de Boston. Boston, MA, EE.UU.

Throughout his career in orthodontics, Dr. Anthony Gianelly had the unique ability to take complex problems and render them simple through clear, organized treatment planning combined with simple mechanotherapy. Realizing that orthodontic mechanotherapy was generally too complex and, consequently, often uncontrollable and burdensome, he set out to simplify it through the bi-dimensional technique, involving less mechanotherapy and less chair time, while resulting in high-quality, evidence-based orthodontic case finishes. The bi-dimensional technique actually developed over several years, commencing as a bi-dimensional wire technique and evolving into a bi-dimensional bracket technique. The bi-dimensional technique utilizes 0.018 × 0.025 pre-torqued/pre-angulated brackets on the upper incisors, 0.018 × 0.025 standard brackets on the lower incisors, and 0.022 × 0.028 brackets on the canines, premolars, and molars, combined with sliding mechanics supported by the necessary anchorage. Vertical slots are present on incisors, canines, and premolars for insertion of auxiliaries. Critical and useful developments from other existing techniques were adopted into the bi-dimensional technique as necessary, resulting in a treatment modality which is adaptable to the correction of any malocclusion without sacrificing the treatment objectives of the orthodontist. Class II non-extraction therapy is carefully divided into three phases: distalization of molars, creating three groups of teeth, and combining the three groups into a functional occlusion. The bi-dimensional technique is equally applicable to extraction or non-extraction treatment of all classes of malocclusions.  (Rev Esp Ortod. 2012;42(4):211-217)

Key words:
Bi-dimensional mechanotherapy. Bi-dimensional brackets. Vertical slots. Class II non-extraction treatment. Three phases of treatment.
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