Three-dimensional evaluation of dental decompensation and mandibular symphysis remodeling on orthodontic-surgical treatment of Class III malocclusion
The purposes of this research were to identify the buccolingual inclinations of the mandibular teeth and the mandibular symphysis remodeling that result from the orthodontic decompensation movement. The sample consisted of 30 adults with Class III dentofacial deformity, who had presurgical orthodont...
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| Veröffentlicht in: | American journal of orthodontics and dentofacial orthopedics 2021-02, Vol.159 (2), p.175-183.e3 |
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| container_title | American journal of orthodontics and dentofacial orthopedics |
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| creator | Sendyk, Michelle Cevidanes, Lucia Helena Soares Ruellas, Antonio Carlos de Oliveira Fattori, Liana Mendes, Fausto Medeiros Paiva, João Batista de Rino Neto, José |
| description | The purposes of this research were to identify the buccolingual inclinations of the mandibular teeth and the mandibular symphysis remodeling that result from the orthodontic decompensation movement.
The sample consisted of 30 adults with Class III dentofacial deformity, who had presurgical orthodontic treatment. Three-dimensional images were generated by cone-beam computed tomography scans at 2 different times (initial and before orthognathic surgery). Three-dimensional virtual models were obtained and superimposed using automated voxel-based registration at the mandible to evaluate B-point displacement, mandibular molar and incisor decompensation movement, and symphysis inclination and thickness. The 3-dimensional displacements of landmarks at the symphysis were quantified and visualized with color-coded maps using 3D Slicer (version 4.0; www.slicer.org) software.
The measurements showed high reproducibility. The patients presented mandibular incisor proclination, which was consistent with the movement of tooth decompensation caused by the presurgical orthodontic treatment. Statistically significant correlations were found between the inclination of the mandibular incisors, symphysis inclination, and B-point displacement. Regarding the thickness of the symphysis and the inclination of the incisors, no statistically significant correlation was found.
The buccolingual orthodontic movement of the mandibular incisors with presurgical leveling is correlated with the inclination of the mandibular symphysis and repositioning of the B-point but not correlated to the thickness of the symphysis.
•We compared mandibular incisor inclination and mandibular symphysis remodeling at 2 times.•Incisor proclination was observed, consistent with presurgical orthodontic treatment.•Incisor inclination, symphysis inclination, and B-point displacement were correlated.•The thickness of the symphysis and inclination of the incisors were not correlated. |
| doi_str_mv | 10.1016/j.ajodo.2019.12.020 |
| format | Article |
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The sample consisted of 30 adults with Class III dentofacial deformity, who had presurgical orthodontic treatment. Three-dimensional images were generated by cone-beam computed tomography scans at 2 different times (initial and before orthognathic surgery). Three-dimensional virtual models were obtained and superimposed using automated voxel-based registration at the mandible to evaluate B-point displacement, mandibular molar and incisor decompensation movement, and symphysis inclination and thickness. The 3-dimensional displacements of landmarks at the symphysis were quantified and visualized with color-coded maps using 3D Slicer (version 4.0; www.slicer.org) software.
The measurements showed high reproducibility. The patients presented mandibular incisor proclination, which was consistent with the movement of tooth decompensation caused by the presurgical orthodontic treatment. Statistically significant correlations were found between the inclination of the mandibular incisors, symphysis inclination, and B-point displacement. Regarding the thickness of the symphysis and the inclination of the incisors, no statistically significant correlation was found.
The buccolingual orthodontic movement of the mandibular incisors with presurgical leveling is correlated with the inclination of the mandibular symphysis and repositioning of the B-point but not correlated to the thickness of the symphysis.
•We compared mandibular incisor inclination and mandibular symphysis remodeling at 2 times.•Incisor proclination was observed, consistent with presurgical orthodontic treatment.•Incisor inclination, symphysis inclination, and B-point displacement were correlated.•The thickness of the symphysis and inclination of the incisors were not correlated.</description><identifier>ISSN: 0889-5406</identifier><identifier>EISSN: 1097-6752</identifier><identifier>DOI: 10.1016/j.ajodo.2019.12.020</identifier><identifier>PMID: 33390311</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Adult ; Cephalometry ; Cone-Beam Computed Tomography ; Dentistry ; Humans ; Incisor - diagnostic imaging ; Malocclusion, Angle Class III - diagnostic imaging ; Malocclusion, Angle Class III - surgery ; Mandible - diagnostic imaging ; Mandible - surgery ; Orthognathic Surgical Procedures ; Reproducibility of Results</subject><ispartof>American journal of orthodontics and dentofacial orthopedics, 2021-02, Vol.159 (2), p.175-183.e3</ispartof><rights>2020 American Association of Orthodontists</rights><rights>Copyright © 2020 American Association of Orthodontists. Published by Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c459t-3e086a8467123336ba4a4e8366194b21263bf20c640da14fe62247ff2031d7df3</citedby><cites>FETCH-LOGICAL-c459t-3e086a8467123336ba4a4e8366194b21263bf20c640da14fe62247ff2031d7df3</cites><orcidid>0000-0001-9786-2253 ; 0000-0003-4458-8064 ; 0000-0002-0479-8457</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ajodo.2019.12.020$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,777,781,882,3537,27905,27906,45976</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33390311$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sendyk, Michelle</creatorcontrib><creatorcontrib>Cevidanes, Lucia Helena Soares</creatorcontrib><creatorcontrib>Ruellas, Antonio Carlos de Oliveira</creatorcontrib><creatorcontrib>Fattori, Liana</creatorcontrib><creatorcontrib>Mendes, Fausto Medeiros</creatorcontrib><creatorcontrib>Paiva, João Batista de</creatorcontrib><creatorcontrib>Rino Neto, José</creatorcontrib><title>Three-dimensional evaluation of dental decompensation and mandibular symphysis remodeling on orthodontic-surgical treatment of Class III malocclusion</title><title>American journal of orthodontics and dentofacial orthopedics</title><addtitle>Am J Orthod Dentofacial Orthop</addtitle><description>The purposes of this research were to identify the buccolingual inclinations of the mandibular teeth and the mandibular symphysis remodeling that result from the orthodontic decompensation movement.
The sample consisted of 30 adults with Class III dentofacial deformity, who had presurgical orthodontic treatment. Three-dimensional images were generated by cone-beam computed tomography scans at 2 different times (initial and before orthognathic surgery). Three-dimensional virtual models were obtained and superimposed using automated voxel-based registration at the mandible to evaluate B-point displacement, mandibular molar and incisor decompensation movement, and symphysis inclination and thickness. The 3-dimensional displacements of landmarks at the symphysis were quantified and visualized with color-coded maps using 3D Slicer (version 4.0; www.slicer.org) software.
The measurements showed high reproducibility. The patients presented mandibular incisor proclination, which was consistent with the movement of tooth decompensation caused by the presurgical orthodontic treatment. Statistically significant correlations were found between the inclination of the mandibular incisors, symphysis inclination, and B-point displacement. Regarding the thickness of the symphysis and the inclination of the incisors, no statistically significant correlation was found.
The buccolingual orthodontic movement of the mandibular incisors with presurgical leveling is correlated with the inclination of the mandibular symphysis and repositioning of the B-point but not correlated to the thickness of the symphysis.
•We compared mandibular incisor inclination and mandibular symphysis remodeling at 2 times.•Incisor proclination was observed, consistent with presurgical orthodontic treatment.•Incisor inclination, symphysis inclination, and B-point displacement were correlated.•The thickness of the symphysis and inclination of the incisors were not correlated.</description><subject>Adult</subject><subject>Cephalometry</subject><subject>Cone-Beam Computed Tomography</subject><subject>Dentistry</subject><subject>Humans</subject><subject>Incisor - diagnostic imaging</subject><subject>Malocclusion, Angle Class III - diagnostic imaging</subject><subject>Malocclusion, Angle Class III - surgery</subject><subject>Mandible - diagnostic imaging</subject><subject>Mandible - surgery</subject><subject>Orthognathic Surgical Procedures</subject><subject>Reproducibility of Results</subject><issn>0889-5406</issn><issn>1097-6752</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9UcuO1DAQtBCIHRa-AAnlyCXBrzjJASQ04jHSSlyWs-XYnRmPHHuwnZHmQ_hfHGZZwYWLLXdXV1W7EHpNcEMwEe-OjToGExqKydAQ2mCKn6ANwUNXi66lT9EG9_1QtxyLG_QipSPGeOAUP0c3jLEBM0I26Of9IQLUxs7gkw1euQrOyi0ql0cVpsqAz6VoQIf5VDDXhvKmmsthx8WpWKXLfDpckk1VhDkYcNbvq3U-5kOx6LPVdVri3upClSOoXOTySr91KqVqt9sVOhe0dsvq4iV6NimX4NXDfYu-f_50v_1a3337stt-vKs1b4dcM8C9UD0XHaFlJTEqrjj0TAgy8JESKtg4UawFx0YRPoGglHdTKTFiOjOxW_ThyntaxhmMLqaicvIU7aziRQZl5b8dbw9yH86y60UnWlYI3j4QxPBjgZTlbJMG55SHsCRZ5Frcd4J1BcquUB1DShGmRxmC5RqoPMrfgco1UEmoLIGWqTd_O3yc-ZNgAby_AqD809lClElb8BqMjaCzNMH-V-AXNGe3bw</recordid><startdate>20210201</startdate><enddate>20210201</enddate><creator>Sendyk, Michelle</creator><creator>Cevidanes, Lucia Helena Soares</creator><creator>Ruellas, Antonio Carlos de Oliveira</creator><creator>Fattori, Liana</creator><creator>Mendes, Fausto Medeiros</creator><creator>Paiva, João Batista de</creator><creator>Rino Neto, José</creator><general>Elsevier Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0001-9786-2253</orcidid><orcidid>https://orcid.org/0000-0003-4458-8064</orcidid><orcidid>https://orcid.org/0000-0002-0479-8457</orcidid></search><sort><creationdate>20210201</creationdate><title>Three-dimensional evaluation of dental decompensation and mandibular symphysis remodeling on orthodontic-surgical treatment of Class III malocclusion</title><author>Sendyk, Michelle ; Cevidanes, Lucia Helena Soares ; Ruellas, Antonio Carlos de Oliveira ; Fattori, Liana ; Mendes, Fausto Medeiros ; Paiva, João Batista de ; Rino Neto, José</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c459t-3e086a8467123336ba4a4e8366194b21263bf20c640da14fe62247ff2031d7df3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adult</topic><topic>Cephalometry</topic><topic>Cone-Beam Computed Tomography</topic><topic>Dentistry</topic><topic>Humans</topic><topic>Incisor - diagnostic imaging</topic><topic>Malocclusion, Angle Class III - diagnostic imaging</topic><topic>Malocclusion, Angle Class III - surgery</topic><topic>Mandible - diagnostic imaging</topic><topic>Mandible - surgery</topic><topic>Orthognathic Surgical Procedures</topic><topic>Reproducibility of Results</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sendyk, Michelle</creatorcontrib><creatorcontrib>Cevidanes, Lucia Helena Soares</creatorcontrib><creatorcontrib>Ruellas, Antonio Carlos de Oliveira</creatorcontrib><creatorcontrib>Fattori, Liana</creatorcontrib><creatorcontrib>Mendes, Fausto Medeiros</creatorcontrib><creatorcontrib>Paiva, João Batista de</creatorcontrib><creatorcontrib>Rino Neto, José</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>American journal of orthodontics and dentofacial orthopedics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sendyk, Michelle</au><au>Cevidanes, Lucia Helena Soares</au><au>Ruellas, Antonio Carlos de Oliveira</au><au>Fattori, Liana</au><au>Mendes, Fausto Medeiros</au><au>Paiva, João Batista de</au><au>Rino Neto, José</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Three-dimensional evaluation of dental decompensation and mandibular symphysis remodeling on orthodontic-surgical treatment of Class III malocclusion</atitle><jtitle>American journal of orthodontics and dentofacial orthopedics</jtitle><addtitle>Am J Orthod Dentofacial Orthop</addtitle><date>2021-02-01</date><risdate>2021</risdate><volume>159</volume><issue>2</issue><spage>175</spage><epage>183.e3</epage><pages>175-183.e3</pages><issn>0889-5406</issn><eissn>1097-6752</eissn><abstract>The purposes of this research were to identify the buccolingual inclinations of the mandibular teeth and the mandibular symphysis remodeling that result from the orthodontic decompensation movement.
The sample consisted of 30 adults with Class III dentofacial deformity, who had presurgical orthodontic treatment. Three-dimensional images were generated by cone-beam computed tomography scans at 2 different times (initial and before orthognathic surgery). Three-dimensional virtual models were obtained and superimposed using automated voxel-based registration at the mandible to evaluate B-point displacement, mandibular molar and incisor decompensation movement, and symphysis inclination and thickness. The 3-dimensional displacements of landmarks at the symphysis were quantified and visualized with color-coded maps using 3D Slicer (version 4.0; www.slicer.org) software.
The measurements showed high reproducibility. The patients presented mandibular incisor proclination, which was consistent with the movement of tooth decompensation caused by the presurgical orthodontic treatment. Statistically significant correlations were found between the inclination of the mandibular incisors, symphysis inclination, and B-point displacement. Regarding the thickness of the symphysis and the inclination of the incisors, no statistically significant correlation was found.
The buccolingual orthodontic movement of the mandibular incisors with presurgical leveling is correlated with the inclination of the mandibular symphysis and repositioning of the B-point but not correlated to the thickness of the symphysis.
•We compared mandibular incisor inclination and mandibular symphysis remodeling at 2 times.•Incisor proclination was observed, consistent with presurgical orthodontic treatment.•Incisor inclination, symphysis inclination, and B-point displacement were correlated.•The thickness of the symphysis and inclination of the incisors were not correlated.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>33390311</pmid><doi>10.1016/j.ajodo.2019.12.020</doi><orcidid>https://orcid.org/0000-0001-9786-2253</orcidid><orcidid>https://orcid.org/0000-0003-4458-8064</orcidid><orcidid>https://orcid.org/0000-0002-0479-8457</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | American journal of orthodontics and dentofacial orthopedics, 2021-02, Vol.159 (2), p.175-183.e3 |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Adult Cephalometry Cone-Beam Computed Tomography Dentistry Humans Incisor - diagnostic imaging Malocclusion, Angle Class III - diagnostic imaging Malocclusion, Angle Class III - surgery Mandible - diagnostic imaging Mandible - surgery Orthognathic Surgical Procedures Reproducibility of Results |
| title | Three-dimensional evaluation of dental decompensation and mandibular symphysis remodeling on orthodontic-surgical treatment of Class III malocclusion |
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