| Importance of occlusal plane reproduction on the semi-adjustable articulator in planning maxillary impactions for orthognathic surgery. | |
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MedLine Citation:
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PMID: 23011674 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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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. |
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Authors:
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Erica Cristina Marchiori; Robson Rodrigues Garcia; Roger William Fernandes Moreira |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-8-7 |
Journal Detail:
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Title: Oral and maxillofacial surgery Volume: - ISSN: 1865-1569 ISO Abbreviation: Oral Maxillofac Surg Publication Date: 2012 Aug |
Date Detail:
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Created Date: 2012-9-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101319632 Medline TA: Oral Maxillofac Surg Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Oral and Maxillofacial Surgery Division, Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas-UNICAMP, Av. Limeira, 901, 52, 13.414-903, Piracicaba, SP, Brazil, marchiori_erica@hotmail.com. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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