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Evaluation of bone contact area and intercondylar distance changes in orthognathic surgery - a comparison between BSSO and HSSO technique depending on mandibular displacement extent.
Möhlhenrich, Stephan Christian; Kniha, Kristian; Peters, Florian; Heitzer, Marius; Szalma, Josef; Prescher, Andreas; Danesh, Gholamreza; Hölzle, Frank; Modabber, Ali.
Afiliación
  • Möhlhenrich SC; Department of Orthodontics, University of Witten/Herdecke, Alfred-Herrhausen Str. 45, 58455, Witten, Germany. stephan.moehlhenrich@uni-wh.de.
  • Kniha K; Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany. stephan.moehlhenrich@uni-wh.de.
  • Peters F; Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
  • Heitzer M; Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
  • Szalma J; Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
  • Prescher A; Department Oral and Maxillofacial Surgery, Medical School, University of Pécs, 1. Tüzér St., Pécs, 7623, Hungary.
  • Danesh G; Institute of Molecular and Cellular Anatomy, Medical Faculty of RWTH-Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
  • Hölzle F; Department of Orthodontics, University of Witten/Herdecke, Alfred-Herrhausen Str. 45, 58455, Witten, Germany.
  • Modabber A; Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
Clin Oral Investig ; 28(3): 182, 2024 Mar 01.
Article en En | MEDLINE | ID: mdl-38424318
ABSTRACT

OBJECTIVES:

The present study aims to assess the impact of bilateral and high oblique sagittal split osteotomy (BSSO/HSSO), as well as displacement distances and directions on the expected and achievable bone contact area (BCA) and changes in the intercondylar distance (ICD). The primary question addressed is whether mandibular splitting through BSSO results in a greater BCA and/or ICD when compared to splitting through HSSO. MATERIALS AND

METHODS:

Totally 80 mandibular displacements were performed on 20 fresh cadavers, for each subject, four splints were produces to facilitate mandibular advancement as well as setbacks of 4 and 8 mm. Pre- and postoperative CBCT scans were performed to plan the surgical procedures and to analyze the expected and achieved BCA and ICD.

RESULTS:

Regarding the maximum mandibular displacement, the expected BCA for HSSO/BSSO were 352.58 ± 96.55mm2 and 1164.00 ± 295.50mm2, respectively, after advancement and 349.11 ± 98.42mm2 and 1344.70 ± 287.23mm2, respectively, after setback. The achieved BCA for HSSO/BSSO were 229.37 ± 75.90mm2 and 391.38 ± 189.01mm2, respectively, after advancement and 278.03 ± 97.65mm2 and 413.52 ± 169.52 mm2, respectively after setback. The expected ICD for HSSO/BSSO were 4.51 ± 0.73 mm and 3.25 ± 1.17 mm after advancement and - 5.76 ± 1.07 mm and - 4.28 ± 1.58 mm after setback. The achieved ICD for HSSO/BSSO were 2.07 ± 2.9 mm and 1.7 ± 0.60 mm after advancement and - 2.57 ± 2.78 mm and - 1.28 ± 0.84 mm after setback. Significant differences between the BCA after HSSO and BSSO were at each displacement (p < 0.001), except for the achieved BCA after 8-mm setback and advancement (p ≥ 0.266). No significant differences were observed regarding ICD, except for the expected ICD after 8-mm setback and advancement (p ≤ 0.037).

CONCLUSIONS:

Compared to the virtual planning, the predictability regarding BCA and ICD was limited. ICD showed smaller clinical changes, BCA decreased significantly in the BSSO group. CLINICAL RELEVANCE BCA and ICD might have been less important in choosing the suitable split technique. in orthognathic surgery.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Sitoesteroles / Avance Mandibular / Cirugía Ortognática / Maloclusión Límite: Humans Idioma: En Revista: Clin Oral Investig Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Alemania

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Sitoesteroles / Avance Mandibular / Cirugía Ortognática / Maloclusión Límite: Humans Idioma: En Revista: Clin Oral Investig Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Alemania