Investigation of effects of hybrid hyrax-mentoplate treatment in high-angle class III patients: A three-dimensional, retrospective study

dc.authorid0000-0002-0029-8738
dc.authorid0000-0002-5052-2320
dc.authorid0000-0003-2460-0724
dc.contributor.authorYıldırım, Gamze
dc.contributor.authorÖnem Özbilen, Elvan
dc.contributor.authorÖzdemir, Fulya
dc.date.accessioned2026-08-27T12:52:06Z
dc.date.available2026-08-27T12:52:06Z
dc.date.issued2026
dc.departmentFakülteler, Diş Hekimliği Fakültesi, Klinik Bilimler Bölümü, Ortodonti Ana Bilim Dalı
dc.description.abstractObjective: This retrospective study evaluated three-dimensional effects of hybrid hyrax-mentoplate (HH-M) orthopaedic treat-ment in high-angle Class III individuals using Cone Beam Computed Tomography (CBCT) images.Materials and Methods: Pre-treatment (T0) and post-treatment (T1) CBCTs of 17 fully compliant high-angle Class III patients(7 males, 10 females, age: 11.7 ± 1.32 years, treatment duration: 12.62 ± 1.7 months) treated with HH-M were analysed. T0 andT1 CBCTs were superimposed from the cranial base using artificial intelligence-based AMASSS module of the 3D Slicer version5.8.1 software (www.slicer.org). Linear and angular changes were analysed in the sagittal, vertical and transverse planes, along-side three-dimensional landmark displacements and volumetric airway measurements. Significance level was set at p < 0.05.Results: Significant increases occurred in SNA, ANB and Occlusal Plane (OP) to Mandibular Plane (MP) angle (p < 0.001,p < 0.001, p = 0.001, respectively), while Sella-Nasion to OP and Palatal Plane (PP) to OP decreased (p = 0.008, p = 0.008, re-spectively). Vertical linear measurements remained stable (p > 0.05). All transverse linear measurements increased (p < 0.05).Upper Molar (UM) to PP, Upper Incisor to PP, Lower Incisor to MP and overjet have significantly increased (p < 0.001, p = 0.018,p = 0.048, p < 0.001, respectively). Overbite remained unchanged (p > 0.05). Nasopharynx (p = 0.008) and Middle Pharynx(p = 0.003) volumes significantly increased.Conclusion: Despite the significant alterations observed in OP and UM-PP, this technique effectively managed to maintain over-all vertical skeletal dimensions without inducing a significant change in other facial height parameters and enhanced the airwayvolume. Significant expansion occurred across maxillary, nasal and zygomatic levels. HH-M represents an effective orthopaedictreatment approach for high-angle Class III patients.
dc.identifier.citationYıldırım, G., Önem Özbilen, E., & Özdemir, F. (2026). Investigation of effects of hybrid hyrax-mentoplate treatment in high-angle class III patients: A three-dimensional, retrospective study. Orthodontics & Craniofacial Research, pp. 1-12. https://doi.org/10.1111/ocr.70173
dc.identifier.doi10.1111/ocr.70173
dc.identifier.endpage12
dc.identifier.issn1601-6343
dc.identifier.issn1601-6335
dc.identifier.pmidPMID: 42605039
dc.identifier.pmidPMID: 42605039
dc.identifier.scopus2-s2.0-105047725128
dc.identifier.scopus2-s2.0-105047725128
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttps://doi.org/10.1111/ocr.70173
dc.identifier.urihttps://hdl.handle.net/20.500.13055/1617
dc.identifier.wosWOS:001850569000001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakPubMed
dc.indekslendigikaynakScopus
dc.indekslendigikaynak.otherSCI-E - Science Citation Index Expanded
dc.institutionauthorÖzdemir, Fulya
dc.institutionauthorid0000-0003-2460-0724
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofOrthodontics & Craniofacial Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectClass III Orthopaedic Treatment
dc.subjectHigh- Angle Vertical Pattern
dc.subjectHybrid- Hyrax
dc.titleInvestigation of effects of hybrid hyrax-mentoplate treatment in high-angle class III patients: A three-dimensional, retrospective study
dc.typeArticle
dspace.entity.typePublication

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