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Type: Artigo de periódico
Title: Importance Of Occlusal Plane Reproduction On The Semi-adjustable Articulator In Planning Maxillary Impactions For Orthognathic Surgery
Author: Marchiori E.C.
Garcia R.R.
Moreira R.W.F.
Abstract: Introduction: The aim of this study was to evaluate whether a 6° counterclockwise change in occlusal plane inclination would produce significant modifications on the final result of a maxillary impaction and mandible advancement model surgery. Materials and methods: Four groups were used in this study, with ten identical maxillary casts and one mandibular cast mounted on the same semi-adjustable articulator, with the same malocclusion. The occlusal plane of the two control and study groups had an inclination of 13° and 7°, respectively. Preoperative and postoperative measures were performed using the Erickson platform and impactions of 6 and 10 mm were tested. To control these movements during model surgery, two splints were fabricated using another two maxillary and mandibular casts mounted with occlusal plane of 13°, simulating the proposed movement. Results: The results were compared using the t test. Only the antero-posterior movement of the upper incisor was statistically significant for both study groups (p < 0.05), with a mean of 0.48 and 0.94 mm in the 10 and 6 mm impaction groups, respectively. Discussion: This information means that if an error in the occlusal plane transference occur, it will not be clinically significant, because differences smaller than 1 mm does not have influence on soft and hard tissue final result. © 2012 Springer-Verlag.
Rights: fechado
Identifier DOI: 10.1007/s10006-012-0353-6
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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