Cargando…

Influence of Invisalign treatment with interproximal enamel reduction (IER) on bone volume for adult crowding: a retrospective three-dimensional cone beam computed tomography study

BACKGROUND: The aim of this study was to use three-dimensional datasets to identify associations between treatment for adult crowding using Invisalign and interproximal enamel reduction (IER) and changes in the bone volume. METHODS: A total of 60 digital cone beam computed tomography (CBCT) scans fr...

Descripción completa

Detalles Bibliográficos
Autores principales: Hellak, Andreas, Schmidt, Nicola, Schauseil, Michael, Stein, Steffen, Drechsler, Thomas, Korbmacher-Steiner, Heike Maria
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5009673/
https://www.ncbi.nlm.nih.gov/pubmed/27586057
http://dx.doi.org/10.1186/s12903-016-0281-1
_version_ 1782451557814501376
author Hellak, Andreas
Schmidt, Nicola
Schauseil, Michael
Stein, Steffen
Drechsler, Thomas
Korbmacher-Steiner, Heike Maria
author_facet Hellak, Andreas
Schmidt, Nicola
Schauseil, Michael
Stein, Steffen
Drechsler, Thomas
Korbmacher-Steiner, Heike Maria
author_sort Hellak, Andreas
collection PubMed
description BACKGROUND: The aim of this study was to use three-dimensional datasets to identify associations between treatment for adult crowding using Invisalign and interproximal enamel reduction (IER) and changes in the bone volume. METHODS: A total of 60 digital cone beam computed tomography (CBCT) scans from 30 patients (28 women, two men; 30 CBCTs pretreatment, 30 posttreatment) were examined retrospectively in order to record bone volume three-dimensionally before and after treatment. The patients’ average age was 36.03 ± 9.7 years. The data were collected and analyzed using the computer programs Mimics 15.0 and OsiriX. Differences in bone between T0 and T1 were analyzed with IBM SPSS 21.0 using the Wilcoxon test for paired samples. RESULTS: Analysis of the orovestibular bone volume showed highly significant changes (bone change P <0.001) only in the mandible where more expansion of the dental arch was carried out using proclination or protrusion. The bone lamella was thinner buccally and thicker lingually. In general, bone increases in the oral direction were slightly greater than bone losses in the vestibular direction. No significant changes were detected in the maxilla (bone change P = 0.13). Significant vertical bone loss in the bone height was detected in both the maxilla and the mandible. The largest bone loss was observed in the vestibular direction in the mandible, at a high level of significance (P <0.001). CONCLUSIONS: Particularly in the mandible, therapeutic reduction of the vertical and sagittal bone volume shows that caution should be used in the treatment of tertiary crowding with proclination and expansion. The cortical walls appear to represent the limits for orthodontic tooth movement, at least in adult female patients.
format Online
Article
Text
id pubmed-5009673
institution National Center for Biotechnology Information
language English
publishDate 2016
publisher BioMed Central
record_format MEDLINE/PubMed
spelling pubmed-50096732016-09-03 Influence of Invisalign treatment with interproximal enamel reduction (IER) on bone volume for adult crowding: a retrospective three-dimensional cone beam computed tomography study Hellak, Andreas Schmidt, Nicola Schauseil, Michael Stein, Steffen Drechsler, Thomas Korbmacher-Steiner, Heike Maria BMC Oral Health Research Article BACKGROUND: The aim of this study was to use three-dimensional datasets to identify associations between treatment for adult crowding using Invisalign and interproximal enamel reduction (IER) and changes in the bone volume. METHODS: A total of 60 digital cone beam computed tomography (CBCT) scans from 30 patients (28 women, two men; 30 CBCTs pretreatment, 30 posttreatment) were examined retrospectively in order to record bone volume three-dimensionally before and after treatment. The patients’ average age was 36.03 ± 9.7 years. The data were collected and analyzed using the computer programs Mimics 15.0 and OsiriX. Differences in bone between T0 and T1 were analyzed with IBM SPSS 21.0 using the Wilcoxon test for paired samples. RESULTS: Analysis of the orovestibular bone volume showed highly significant changes (bone change P <0.001) only in the mandible where more expansion of the dental arch was carried out using proclination or protrusion. The bone lamella was thinner buccally and thicker lingually. In general, bone increases in the oral direction were slightly greater than bone losses in the vestibular direction. No significant changes were detected in the maxilla (bone change P = 0.13). Significant vertical bone loss in the bone height was detected in both the maxilla and the mandible. The largest bone loss was observed in the vestibular direction in the mandible, at a high level of significance (P <0.001). CONCLUSIONS: Particularly in the mandible, therapeutic reduction of the vertical and sagittal bone volume shows that caution should be used in the treatment of tertiary crowding with proclination and expansion. The cortical walls appear to represent the limits for orthodontic tooth movement, at least in adult female patients. BioMed Central 2016-09-01 /pmc/articles/PMC5009673/ /pubmed/27586057 http://dx.doi.org/10.1186/s12903-016-0281-1 Text en © The Author(s). 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Hellak, Andreas
Schmidt, Nicola
Schauseil, Michael
Stein, Steffen
Drechsler, Thomas
Korbmacher-Steiner, Heike Maria
Influence of Invisalign treatment with interproximal enamel reduction (IER) on bone volume for adult crowding: a retrospective three-dimensional cone beam computed tomography study
title Influence of Invisalign treatment with interproximal enamel reduction (IER) on bone volume for adult crowding: a retrospective three-dimensional cone beam computed tomography study
title_full Influence of Invisalign treatment with interproximal enamel reduction (IER) on bone volume for adult crowding: a retrospective three-dimensional cone beam computed tomography study
title_fullStr Influence of Invisalign treatment with interproximal enamel reduction (IER) on bone volume for adult crowding: a retrospective three-dimensional cone beam computed tomography study
title_full_unstemmed Influence of Invisalign treatment with interproximal enamel reduction (IER) on bone volume for adult crowding: a retrospective three-dimensional cone beam computed tomography study
title_short Influence of Invisalign treatment with interproximal enamel reduction (IER) on bone volume for adult crowding: a retrospective three-dimensional cone beam computed tomography study
title_sort influence of invisalign treatment with interproximal enamel reduction (ier) on bone volume for adult crowding: a retrospective three-dimensional cone beam computed tomography study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5009673/
https://www.ncbi.nlm.nih.gov/pubmed/27586057
http://dx.doi.org/10.1186/s12903-016-0281-1
work_keys_str_mv AT hellakandreas influenceofinvisaligntreatmentwithinterproximalenamelreductionieronbonevolumeforadultcrowdingaretrospectivethreedimensionalconebeamcomputedtomographystudy
AT schmidtnicola influenceofinvisaligntreatmentwithinterproximalenamelreductionieronbonevolumeforadultcrowdingaretrospectivethreedimensionalconebeamcomputedtomographystudy
AT schauseilmichael influenceofinvisaligntreatmentwithinterproximalenamelreductionieronbonevolumeforadultcrowdingaretrospectivethreedimensionalconebeamcomputedtomographystudy
AT steinsteffen influenceofinvisaligntreatmentwithinterproximalenamelreductionieronbonevolumeforadultcrowdingaretrospectivethreedimensionalconebeamcomputedtomographystudy
AT drechslerthomas influenceofinvisaligntreatmentwithinterproximalenamelreductionieronbonevolumeforadultcrowdingaretrospectivethreedimensionalconebeamcomputedtomographystudy
AT korbmachersteinerheikemaria influenceofinvisaligntreatmentwithinterproximalenamelreductionieronbonevolumeforadultcrowdingaretrospectivethreedimensionalconebeamcomputedtomographystudy