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Minimally invasive surgically assisted rapid palatal expansion: are pterygomaxillary disjunction and nasal septum disinsertion necessary?

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Τίτλος: Minimally invasive surgically assisted rapid palatal expansion: are pterygomaxillary disjunction and nasal septum disinsertion necessary?
Συγγραφείς: da Rosa BM; Private Practice, Belle & Haas Center of Orthofacial Surgery, Department of Oral and Maxillofacial Surgery, Hospital São Lucas, Porto Alegre, Brazil; Postgraduate Program in Dentistry, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil. Electronic address: bibiana.mello@hotmail.com., Valls-Ontañón A; Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Institute of Maxillofacial Surgery, Teknon Medical Center, Barcelona, Spain., Haas OL Jr; Private Practice, Belle & Haas Center of Orthofacial Surgery, Department of Oral and Maxillofacial Surgery, Hospital São Lucas, Porto Alegre, Brazil., Bastos RM; Private Practice, Belle & Haas Center of Orthofacial Surgery, Department of Oral and Maxillofacial Surgery, Hospital São Lucas, Porto Alegre, Brazil., de Oliveira RB; Private Practice, Belle & Haas Center of Orthofacial Surgery, Department of Oral and Maxillofacial Surgery, Hospital São Lucas, Porto Alegre, Brazil., Hernández-Alfaro F; Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Institute of Maxillofacial Surgery, Teknon Medical Center, Barcelona, Spain., de Menezes LM; Postgraduate Program in Dentistry, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Department of Orthodontics, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
Πηγή: International journal of oral and maxillofacial surgery [Int J Oral Maxillofac Surg] 2026 Aug; Vol. 55 (8), pp. 934-941. Date of Electronic Publication: 2026 Jan 20.
Τύπος έκδοσης: Comparative Study; Journal Article; Multicenter Study
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Churchill Livingstone Country of Publication: Denmark NLM ID: 8605826 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1399-0020 (Electronic) Linking ISSN: 09015027 NLM ISO Abbreviation: Int J Oral Maxillofac Surg Subsets: MEDLINE
Imprint Name(s): Publication: Copenhagen : Churchill Livingstone
Original Publication: Copenhagen : Munksgaard, c1986-
Ιατρικοί όροι (MeSH): Maxilla*/surgery , Minimally Invasive Surgical Procedures*/methods , Nasal Septum*/surgery , Nasal Septum*/diagnostic imaging , Palatal Expansion Technique*, Adult ; Female ; Humans ; Male ; Middle Aged ; Cone-Beam Computed Tomography ; Retrospective Studies ; Treatment Outcome
Περίληψη: This retrospective multicentre study investigated the effects of pterygomaxillary disjunction (PD) and nasal septum disinsertion (NSD) by comparing two minimally invasive bone-anchored surgically assisted rapid palatal expansion techniques in adult patients. The analysis focused on their impact on the nasal septum and the extent of palatal expansion. Forty patients were allocated to two groups: G1 (without PD and NSD) and G2 (with PD and NSD). The transverse opening pattern in the anterior and posterior regions, as well as changes in the position of the nasal septum, were evaluated using cone beam computed tomography images. Both groups showed significant anterior and posterior transverse gains (G1: 4.8 mm and 2.9 mm; G2: 5.7 mm and 3.8 mm; all P ≤ 0.001). There was no significant difference between the groups in anterior or posterior opening (P = 0.44, P = 0.20). Both groups showed slight nasal septum displacement, but without statistical relevance (linear: P = 0.099, P = 0.072; angular: P = 0.062, P = 0.16). Both techniques were effective in treating maxillary deficiency in adult patients. The study suggests that PD and NSD may not be essential steps to achieve adequate palatal expansion with minimally invasive surgeries.
(Copyright © 2026 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)
Competing Interests: Competing interests None.
Contributed Indexing: Keywords: Dentofacial deformities; Maxillary osteotomy; Minimally invasive surgical procedures; Nasal cavity; Palatal expansion technique
Entry Date(s): Date Created: 20260121 Date Completed: 20260701 Latest Revision: 20260713
Update Code: 20260713
DOI: 10.1016/j.ijom.2026.01.012
PMID: 41565504
Βάση Δεδομένων: MEDLINE
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  Data: Minimally invasive surgically assisted rapid palatal expansion: are pterygomaxillary disjunction and nasal septum disinsertion necessary?
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  Data: <searchLink fieldCode="AU" term="%22da+Rosa+BM%22">da Rosa BM</searchLink>; Private Practice, Belle & Haas Center of Orthofacial Surgery, Department of Oral and Maxillofacial Surgery, Hospital São Lucas, Porto Alegre, Brazil; Postgraduate Program in Dentistry, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil. Electronic address: bibiana.mello@hotmail.com.<br /><searchLink fieldCode="AU" term="%22Valls-Ontañón+A%22">Valls-Ontañón A</searchLink>; Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Institute of Maxillofacial Surgery, Teknon Medical Center, Barcelona, Spain.<br /><searchLink fieldCode="AU" term="%22Haas+OL+Jr%22">Haas OL Jr</searchLink>; Private Practice, Belle & Haas Center of Orthofacial Surgery, Department of Oral and Maxillofacial Surgery, Hospital São Lucas, Porto Alegre, Brazil.<br /><searchLink fieldCode="AU" term="%22Bastos+RM%22">Bastos RM</searchLink>; Private Practice, Belle & Haas Center of Orthofacial Surgery, Department of Oral and Maxillofacial Surgery, Hospital São Lucas, Porto Alegre, Brazil.<br /><searchLink fieldCode="AU" term="%22de+Oliveira+RB%22">de Oliveira RB</searchLink>; Private Practice, Belle & Haas Center of Orthofacial Surgery, Department of Oral and Maxillofacial Surgery, Hospital São Lucas, Porto Alegre, Brazil.<br /><searchLink fieldCode="AU" term="%22Hernández-Alfaro+F%22">Hernández-Alfaro F</searchLink>; Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Institute of Maxillofacial Surgery, Teknon Medical Center, Barcelona, Spain.<br /><searchLink fieldCode="AU" term="%22de+Menezes+LM%22">de Menezes LM</searchLink>; Postgraduate Program in Dentistry, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Department of Orthodontics, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
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  Data: <searchLink fieldCode="JN" term="%228605826%22">International journal of oral and maxillofacial surgery</searchLink> [Int J Oral Maxillofac Surg] 2026 Aug; Vol. 55 (8), pp. 934-941. <i>Date of Electronic Publication: </i>2026 Jan 20.
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  Data: Comparative Study; Journal Article; Multicenter Study
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  Data: English
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Churchill+Livingstone%22">Churchill Livingstone </searchLink><i>Country of Publication: </i>Denmark <i>NLM ID: </i>8605826 <i>Publication Model: </i>Print-Electronic <i>Cited Medium: </i>Internet <i>ISSN: </i>1399-0020 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2209015027%22">09015027 </searchLink><i>NLM ISO Abbreviation: </i>Int J Oral Maxillofac Surg <i>Subsets: </i>MEDLINE
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  Data: <i>Publication</i>: Copenhagen : Churchill Livingstone<br /><i>Original Publication</i>: Copenhagen : Munksgaard, c1986-
– Name: SubjectMESH
  Label: MeSH Terms
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  Data: <searchLink fieldCode="MM" term="%22Maxilla%22">Maxilla*</searchLink>/<searchLink fieldCode="MM" term="%22Maxilla+surgery%22">surgery</searchLink> <br /><searchLink fieldCode="MM" term="%22Minimally+Invasive+Surgical+Procedures%22">Minimally Invasive Surgical Procedures*</searchLink>/<searchLink fieldCode="MM" term="%22Minimally+Invasive+Surgical+Procedures+methods%22">methods</searchLink> <br /><searchLink fieldCode="MM" term="%22Nasal+Septum%22">Nasal Septum*</searchLink>/<searchLink fieldCode="MM" term="%22Nasal+Septum+surgery%22">surgery</searchLink> <br /><searchLink fieldCode="MM" term="%22Nasal+Septum%22">Nasal Septum*</searchLink>/<searchLink fieldCode="MM" term="%22Nasal+Septum+diagnostic+imaging%22">diagnostic imaging</searchLink> <br /><searchLink fieldCode="MM" term="%22Palatal+Expansion+Technique%22">Palatal Expansion Technique*</searchLink><br /><searchLink fieldCode="MH" term="%22Adult%22">Adult</searchLink> ; <searchLink fieldCode="MH" term="%22Female%22">Female</searchLink> ; <searchLink fieldCode="MH" term="%22Humans%22">Humans</searchLink> ; <searchLink fieldCode="MH" term="%22Male%22">Male</searchLink> ; <searchLink fieldCode="MH" term="%22Middle+Aged%22">Middle Aged</searchLink> ; <searchLink fieldCode="MH" term="%22Cone-Beam+Computed+Tomography%22">Cone-Beam Computed Tomography</searchLink> ; <searchLink fieldCode="MH" term="%22Retrospective+Studies%22">Retrospective Studies</searchLink> ; <searchLink fieldCode="MH" term="%22Treatment+Outcome%22">Treatment Outcome</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This retrospective multicentre study investigated the effects of pterygomaxillary disjunction (PD) and nasal septum disinsertion (NSD) by comparing two minimally invasive bone-anchored surgically assisted rapid palatal expansion techniques in adult patients. The analysis focused on their impact on the nasal septum and the extent of palatal expansion. Forty patients were allocated to two groups: G1 (without PD and NSD) and G2 (with PD and NSD). The transverse opening pattern in the anterior and posterior regions, as well as changes in the position of the nasal septum, were evaluated using cone beam computed tomography images. Both groups showed significant anterior and posterior transverse gains (G1: 4.8 mm and 2.9 mm; G2: 5.7 mm and 3.8 mm; all P ≤ 0.001). There was no significant difference between the groups in anterior or posterior opening (P = 0.44, P = 0.20). Both groups showed slight nasal septum displacement, but without statistical relevance (linear: P = 0.099, P = 0.072; angular: P = 0.062, P = 0.16). Both techniques were effective in treating maxillary deficiency in adult patients. The study suggests that PD and NSD may not be essential steps to achieve adequate palatal expansion with minimally invasive surgeries.<br /> (Copyright © 2026 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)
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  Label: Competing Interests
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  Data: Competing interests None.
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  Data: <i>Keywords: </i>Dentofacial deformities; Maxillary osteotomy; Minimally invasive surgical procedures; Nasal cavity; Palatal expansion technique
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  Data: <i>Date Created: </i>20260121 <i>Date Completed: </i>20260701 <i>Latest Revision: </i>20260713
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        Value: 10.1016/j.ijom.2026.01.012
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        Text: English
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      – TitleFull: Minimally invasive surgically assisted rapid palatal expansion: are pterygomaxillary disjunction and nasal septum disinsertion necessary?
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