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10.01.2022 | Original Article

Influence of the mandibular plane and magnitude of the movement in sagittal split ramus osteotomy: an in vitro study

verfasst von: Gleysson Matias de Assis, Victor Diniz Borborema dos Santos, Salomão Israel Monteiro Lourenço Queiroz, Adriano Rocha Germano

Erschienen in: Oral and Maxillofacial Surgery | Ausgabe 4/2022

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Abstract

Purpose

The aim of this study was to evaluate fixation resistance in mandibular sagittal split ramus osteotomy in standardized polyurethane hemimandibles with two types of advancement (6 and 12 mm), with or without mandibular plane rotation, using a 2.0-mm plate/screw system.

Methods

Seven groups were evaluated using a vertical compressive load in the first molar region, and the applied force in Newtons was recorded in 1 mm, 5 mm, and 10 mm displacements, as well as the maximum force.

Results

There was a statistical intergroup difference and it was observed that increasing the advancement decreased fixation resistance with a single plate, and inserting an additional plate significantly increased osteosynthesis resistance.

Conclusion

In the 12 mm advancements, clockwise rotation proved to be more resistant when fixed with only one plate. By contrast, counterclockwise rotation was significantly more resistant in stabilizing the mandibular sagittal ramus osteotomy when two plates were used.

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Titel: Influence of the mandibular plane and magnitude of the movement in sagittal split ramus osteotomy: an in vitro study
verfasst von: Gleysson Matias de Assis
Victor Diniz Borborema dos Santos
Salomão Israel Monteiro Lourenço Queiroz
Adriano Rocha Germano
Publikationsdatum: 10.01.2022
Verlag: Springer Berlin Heidelberg
Erschienen in: Oral and Maxillofacial Surgery / Ausgabe 4/2022
Print ISSN: 1865-1550
Elektronische ISSN: 1865-1569
DOI: https://doi.org/10.1007/s10006-021-01024-z

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Influence of the mandibular plane and magnitude of the movement in sagittal split ramus osteotomy: an in vitro study