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Does maxillomandibular fixation affect skeletal stability following mandibular advancement? A single-blind clinical trial

BACKGROUND: The stability of the results remains a significant concern in orthognathic surgeries. This study aimed to assess the amount of relapse following mandibular advancement with/without maxillomandibular fixation (MMF). MATERIALS AND METHODS: A single-blind clinical trial was conducted on pat...

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Autores principales: Tabrizi, Reza, Sarrafzadeh, Arash, Shafiei, Shervin, Moslemi, Hamidreza, Dastgir, Ramtin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Nature Singapore 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9076785/
https://www.ncbi.nlm.nih.gov/pubmed/35522330
http://dx.doi.org/10.1186/s40902-022-00350-w
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author Tabrizi, Reza
Sarrafzadeh, Arash
Shafiei, Shervin
Moslemi, Hamidreza
Dastgir, Ramtin
author_facet Tabrizi, Reza
Sarrafzadeh, Arash
Shafiei, Shervin
Moslemi, Hamidreza
Dastgir, Ramtin
author_sort Tabrizi, Reza
collection PubMed
description BACKGROUND: The stability of the results remains a significant concern in orthognathic surgeries. This study aimed to assess the amount of relapse following mandibular advancement with/without maxillomandibular fixation (MMF). MATERIALS AND METHODS: A single-blind clinical trial was conducted on patients with mandibular retrognathism who underwent BSSO for mandibular advancement and Lefort I maxillary superior repositioning. Patients were randomly divided into two groups of treatment (MMF) and control (no MMF). In the treatment group, MMF was performed for 2 weeks; meanwhile, MMF was not performed in the control group, and only guiding elastics were applied postoperatively. Lateral cephalograms were obtained preoperatively (T1), immediately after surgery (T2), and at 1 year postoperatively (T3). The distance from points A and B to the X and Y plane were measured to identify the amount of vertical and horizontal relapse in 1 year as a primary outcome. An independent t-test was applied in order to find differences in outcomes between the control and treatment groups. RESULTS: Fifty-eight patients were evaluated in two groups (28 patients in the MMF group and 30 in the no-MMF group). The magnitude of mandibular advancement following BSSO was 7.68±1.39 mm and 7.53±1.28, respectively, without significant difference among the groups (p= 0.68). The mean sagittal and vertical changes (relapse) at point B were significantly different between the two groups at 1-year follow-up after the osteotomy (p=0.001 and p=0.05, respectively). CONCLUSION: According to the results of this study, patients with short-term MMF following BSSO for mandibular advancement benefit from significantly greater skeletal stability in the sagittal and vertical dimensions.
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spelling pubmed-90767852022-05-08 Does maxillomandibular fixation affect skeletal stability following mandibular advancement? A single-blind clinical trial Tabrizi, Reza Sarrafzadeh, Arash Shafiei, Shervin Moslemi, Hamidreza Dastgir, Ramtin Maxillofac Plast Reconstr Surg Research BACKGROUND: The stability of the results remains a significant concern in orthognathic surgeries. This study aimed to assess the amount of relapse following mandibular advancement with/without maxillomandibular fixation (MMF). MATERIALS AND METHODS: A single-blind clinical trial was conducted on patients with mandibular retrognathism who underwent BSSO for mandibular advancement and Lefort I maxillary superior repositioning. Patients were randomly divided into two groups of treatment (MMF) and control (no MMF). In the treatment group, MMF was performed for 2 weeks; meanwhile, MMF was not performed in the control group, and only guiding elastics were applied postoperatively. Lateral cephalograms were obtained preoperatively (T1), immediately after surgery (T2), and at 1 year postoperatively (T3). The distance from points A and B to the X and Y plane were measured to identify the amount of vertical and horizontal relapse in 1 year as a primary outcome. An independent t-test was applied in order to find differences in outcomes between the control and treatment groups. RESULTS: Fifty-eight patients were evaluated in two groups (28 patients in the MMF group and 30 in the no-MMF group). The magnitude of mandibular advancement following BSSO was 7.68±1.39 mm and 7.53±1.28, respectively, without significant difference among the groups (p= 0.68). The mean sagittal and vertical changes (relapse) at point B were significantly different between the two groups at 1-year follow-up after the osteotomy (p=0.001 and p=0.05, respectively). CONCLUSION: According to the results of this study, patients with short-term MMF following BSSO for mandibular advancement benefit from significantly greater skeletal stability in the sagittal and vertical dimensions. Springer Nature Singapore 2022-05-06 /pmc/articles/PMC9076785/ /pubmed/35522330 http://dx.doi.org/10.1186/s40902-022-00350-w Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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 Research
Tabrizi, Reza
Sarrafzadeh, Arash
Shafiei, Shervin
Moslemi, Hamidreza
Dastgir, Ramtin
Does maxillomandibular fixation affect skeletal stability following mandibular advancement? A single-blind clinical trial
title Does maxillomandibular fixation affect skeletal stability following mandibular advancement? A single-blind clinical trial
title_full Does maxillomandibular fixation affect skeletal stability following mandibular advancement? A single-blind clinical trial
title_fullStr Does maxillomandibular fixation affect skeletal stability following mandibular advancement? A single-blind clinical trial
title_full_unstemmed Does maxillomandibular fixation affect skeletal stability following mandibular advancement? A single-blind clinical trial
title_short Does maxillomandibular fixation affect skeletal stability following mandibular advancement? A single-blind clinical trial
title_sort does maxillomandibular fixation affect skeletal stability following mandibular advancement? a single-blind clinical trial
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9076785/
https://www.ncbi.nlm.nih.gov/pubmed/35522330
http://dx.doi.org/10.1186/s40902-022-00350-w
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