Please use this identifier to cite or link to this item: https://ptsldigital.ukm.my/jspui/handle/123456789/775903
Full metadata record
DC FieldValueLanguage
dc.contributor.advisorRama Krsna Rajandram. Assc. Profen_US
dc.contributor.advisorJothi Raamahlingam A/L Rajaran, Dr.en_US
dc.contributor.advisorImree, Dr.en_US
dc.contributor.authorKoon Zheng Dong (P106605)en_US
dc.date.accessioned2024-09-18T06:35:03Z-
dc.date.available2024-09-18T06:35:03Z-
dc.date.issued2024-07-29-
dc.identifier.urihttps://ptsldigital.ukm.my/jspui/handle/123456789/775903-
dc.description.abstractLe Fort I osteotomy is a surgical technique used in orthognathic surgery to reposition the maxilla based on the diagnosis of the skeletal deformity. The maxilla is the base of the nasal cavity, and any surgical movement could lead to changes to the volume of the nasal cavity. There is very limited evidence on the impact of different maxillary surgical movements on the nasal cavity volume alone. This study aims to analyze the threedimensional changes in the nasal cavity following Le Fort I osteotomy based on the different types of vectors of maxillary movement and magnitude. Preoperative and postoperative cone beam computed tomography (CBCT) data and surgical records were obtained based on our inclusion and exclusion criteria. 3D medical imaging software was used to analyse the changes to the nasal cavity. The study found there is an increase in nasal cavity volume if the vector of movement was a combination of down graft with advancement (p<0.05) and if a pure down graft (p>0.05). There was a reduction in nasal cavity volume when the maxillary vector of movement was purely forward or in a combination of backward and impaction or a vector of impaction (p<0.05) and a vector combination of advancement with impaction (p>0.05). No correlation was found between the surgical magnitude changes ratio and the nasal cavity volume changes ratio in all the groups. In conclusion, this study brings forward a clinical consideration that needs to be included when assessing expected individual changes to nasal resistance when performing the Lefort I osteotomy besides the expected skeletal and occlusal changes.en_US
dc.language.isoenen_US
dc.publisherUKM, Kuala Lumpuren_US
dc.relationFaculty of Dentistry / Fakulti Pergigianen_US
dc.rightsUKMen_US
dc.subjectOsteotomyen_US
dc.subjectOrthognathic Surgeryen_US
dc.subjectMaxillaen_US
dc.subjectNasal Cavityen_US
dc.subjectUniversiti Kebangsaan Malaysia -- Dissertationsen_US
dc.subjectDissertations, Academic -- Malaysiaen_US
dc.titleMorphometric analysis of nasal cavity volume following Le Fort I maxillary osteotomyen_US
dc.typeThesesen_US
dc.description.notese-thesisen_US
dc.format.pages57en_US
dc.format.degreeDoctor Of Clinical Dentistry (Oral And Maxillofacial Surgery)en_US
dc.description.categoryofthesesAccess Terbuka/Open Accessen_US
Appears in Collections:Faculty of Dentistry / Fakulti Pergigian

Files in This Item:
File Description SizeFormat 
Morphometric analysis of nasal cavity volume following le fort I maxillary osteotomy.pdf
  Restricted Access
Full-text1.07 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.