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Changes in the facial soft tissue profile after maxillary orthognathic surgery
OBJECTIVES: To compare the changes of the soft tissue profile in relation to the displacement of the underlying hard structures in maxillary orthognathic surgery and to contribute to the esthetic prediction of the facial profile after surgical procedures. MATERIALS AND METHODS: We analyzed the sagit...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Medizin
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9038810/ https://www.ncbi.nlm.nih.gov/pubmed/33881549 http://dx.doi.org/10.1007/s00056-021-00294-2 |
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author | Rupperti, S. Winterhalder, P. Krennmair, S. Holberg, S. Holberg, C. Mast, G. Rudzki, I. |
author_facet | Rupperti, S. Winterhalder, P. Krennmair, S. Holberg, S. Holberg, C. Mast, G. Rudzki, I. |
author_sort | Rupperti, S. |
collection | PubMed |
description | OBJECTIVES: To compare the changes of the soft tissue profile in relation to the displacement of the underlying hard structures in maxillary orthognathic surgery and to contribute to the esthetic prediction of the facial profile after surgical procedures. MATERIALS AND METHODS: We analyzed the sagittal changes in the facial soft tissue profile related to surgical changes in skeletal structures after maxillary osteotomy in a retrospective study. The study sample comprised 115 adult patients between the ages of 18–50 years who had undergone maxillary orthognathic surgery and interdisciplinary orthodontic treatment at the Department of Orthodontics, Ludwig-Maximilians University of Munich, Germany. LeFort I osteotomy cases in both maxillary monognathic and bignathic osteotomy procedures were included. All subjects had received rigid fixation. A cephalometric analysis of presurgical and postsurgical cephalograms was performed and the correlations between hard tissue and soft tissue change ratios were evaluated using a bivariate linear regression analysis. A vertical line through the landmark sella (S) perpendicular to the nasion-sella line (NSL) served as the reference plane. RESULTS: The subnasale (Sn) followed the A point (A) by 57%, the soft tissue A point (A′) followed the A point (A) by 73% and the upper lip, represented by the landmark labrale superius (Ls) followed the upper incisor (Is) by 73%; all three in a linear correlation with a mean prediction error of nearly 2 mm. CONCLUSION: The scatterplots show a linear correlation with a wide spread for all three pairs of reference points. The wide spread and the high prediction error of almost 2 mm indicate low predictability of the expected lip position and Sn. |
format | Online Article Text |
id | pubmed-9038810 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Springer Medizin |
record_format | MEDLINE/PubMed |
spelling | pubmed-90388102022-05-07 Changes in the facial soft tissue profile after maxillary orthognathic surgery Rupperti, S. Winterhalder, P. Krennmair, S. Holberg, S. Holberg, C. Mast, G. Rudzki, I. J Orofac Orthop Original Article OBJECTIVES: To compare the changes of the soft tissue profile in relation to the displacement of the underlying hard structures in maxillary orthognathic surgery and to contribute to the esthetic prediction of the facial profile after surgical procedures. MATERIALS AND METHODS: We analyzed the sagittal changes in the facial soft tissue profile related to surgical changes in skeletal structures after maxillary osteotomy in a retrospective study. The study sample comprised 115 adult patients between the ages of 18–50 years who had undergone maxillary orthognathic surgery and interdisciplinary orthodontic treatment at the Department of Orthodontics, Ludwig-Maximilians University of Munich, Germany. LeFort I osteotomy cases in both maxillary monognathic and bignathic osteotomy procedures were included. All subjects had received rigid fixation. A cephalometric analysis of presurgical and postsurgical cephalograms was performed and the correlations between hard tissue and soft tissue change ratios were evaluated using a bivariate linear regression analysis. A vertical line through the landmark sella (S) perpendicular to the nasion-sella line (NSL) served as the reference plane. RESULTS: The subnasale (Sn) followed the A point (A) by 57%, the soft tissue A point (A′) followed the A point (A) by 73% and the upper lip, represented by the landmark labrale superius (Ls) followed the upper incisor (Is) by 73%; all three in a linear correlation with a mean prediction error of nearly 2 mm. CONCLUSION: The scatterplots show a linear correlation with a wide spread for all three pairs of reference points. The wide spread and the high prediction error of almost 2 mm indicate low predictability of the expected lip position and Sn. Springer Medizin 2021-04-21 2022 /pmc/articles/PMC9038810/ /pubmed/33881549 http://dx.doi.org/10.1007/s00056-021-00294-2 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Original Article Rupperti, S. Winterhalder, P. Krennmair, S. Holberg, S. Holberg, C. Mast, G. Rudzki, I. Changes in the facial soft tissue profile after maxillary orthognathic surgery |
title | Changes in the facial soft tissue profile after maxillary orthognathic surgery |
title_full | Changes in the facial soft tissue profile after maxillary orthognathic surgery |
title_fullStr | Changes in the facial soft tissue profile after maxillary orthognathic surgery |
title_full_unstemmed | Changes in the facial soft tissue profile after maxillary orthognathic surgery |
title_short | Changes in the facial soft tissue profile after maxillary orthognathic surgery |
title_sort | changes in the facial soft tissue profile after maxillary orthognathic surgery |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9038810/ https://www.ncbi.nlm.nih.gov/pubmed/33881549 http://dx.doi.org/10.1007/s00056-021-00294-2 |
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