One year postoperative hard and soft tissue volumetric changes after a BSSO mandibular advancement

International Journal of Oral and Maxillofacial Surgery
Thomas J J MaalWilfred A Borstlap

Abstract

In this study, cone beam computed tomography (CBCT) and three dimensional (3D) stereophotogrammetry are used to compare the 3D skeletal and soft tissue changes caused by a bilateral sagittal split osteotomy (BSSO) 1 year after a mandibular advancement. Eighteen consecutive patients with a hypoplastic mandible were treated with a BSSO according to the Hunsuck modification. Preoperatively and 1 year postoperatively, a CBCT scan was acquired and a 3D photograph. The pre- and postoperative CBCT scans were matched using voxel based registration. After registration, the mandible could be segmented in the pre- and postoperative scans. The preoperative scan was subtracted from the postoperative scan, resulting in the hard tissue difference. To investigate the soft tissue changes, the pre- and postoperative 3D photographs were registered using surface based registration. After registration the preoperative surface could be subtracted from the postoperative surface, resulting in the overall volumetric difference. As expected, a correlation between mandibular advancent and volumetric changes of the hard tissues was found. The correlation between advancement and soft tissues was weak. The labial mental fold stretched after surgery. This st...Continue Reading

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Citations

Dec 27, 2015·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Young-Kyun KimNam-Ki Lee
Sep 18, 2013·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Joao Roberto GoncalvesLucia Helena Cevidanes
Dec 9, 2015·International Journal of Oral and Maxillofacial Surgery·A Bermell-BavieraJ M Almerich-Silla
Mar 8, 2016·Revue de stomatologie, de chirurgie maxillo-faciale et de chirurgie orale·N SigauxP Bouletreau
Mar 11, 2015·International Journal of Oral and Maxillofacial Surgery·N JabarB S Khambay
Mar 22, 2015·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Jeroen H F LiebregtsThomas J J Maal
Dec 11, 2014·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Simonas GrybauskasLiga Berzina-Cimdina
Sep 15, 2014·International Journal of Oral and Maxillofacial Surgery·B van LoonT J J Maal
Oct 1, 2017·The Journal of Craniofacial Surgery·Patricia Stoor, Satu Apajalahti
Nov 26, 2015·The Journal of Craniofacial Surgery·Ki-Uk Nam, Jongrak Hong
Sep 7, 2020·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Yan BiaoKyung-Min Lee

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