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Maxillary osteotomy

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https://www.readbyqxmd.com/read/28528359/anatomic-basis-of-le-fort-1-impaction-osteotomy-a-radiological-study
#1
Rivka Bendrihem, Christian Vacher, Audrey Fohlen, Jean-Pierre Pelage
PURPOSE: In Le Fort 1 osteotomy when a maxillary impaction is necessary, surgeons have to face different anatomical problems. (1) To determine the best bone resection route, they have to consider the situation of dental roots, infraorbital foramen and maxillary artery. (2) In case of Le Fort 1 osteotomy combined with a mandibular sagittal split osteotomy, the palate has to be replaced in horizontal position although there is no anatomical landmark. (3) In case of Gummy smiles, it can be due to either long face or short upper lip...
May 20, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28526551/assessment-of-vertical-ridge-augmentation-in-anterior-aesthetic-zone-using-onlay-xenografts-with-titanium-mesh-versus-the-inlay-bone-grafting-technique-a-randomized-clinical-trial
#2
M Mounir, S Mounir, A A Elfetouh, M A Shaker
The aim of this study was to evaluate the final vertical gain at the deficient anterior maxillary alveolar ridges using onlay bone grafts with titanium mesh versus inlay bone grafting. This was a single institutional randomized comparative clinical trial. The study population included 16 patients, with edentulous anterior maxillary alveolar ridges (40 implant sites) who were presented and treated at the Faculty of Oral and Dental Medicine in Cairo University from September 2013 to August 2015. Selected patients were randomly divided into two equal groups...
May 16, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28523641/sandwich-bone-graft-for-vertical-augmentation-of-the-posterior-maxillary-region-a-case-report-with-9-year-follow-up
#3
Kenko Tanaka, Irena Sailer, Yoshihiro Kataoka, Shinnosuke Nogami, Tetsu Takahashi
The loss of teeth followed by bone resorption often lead to defects in the alveolar ridge, making installation of dental implants difficult. Correction of such bone defects, especially lack of height of the ridge, is a difficult problem for all dental surgeons. This report describes the outcome of treatment after alveolar ridge augmentation in the atrophic posterior maxillary region via segmental sandwich osteotomy combined with placement of an interpositional autograft prior to placement of endosseous implants...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28515525/management-of-an-intraoperatively-damaged-endotracheal-tube-in-a-case-of-difficult-airway-using-fibre-optic-bronchoscope-with-minimal-apnoea-period
#4
Jayachandran Himarani, S Mary Nancy, V B Krishna Kumar Raja, S Shanmuga Sundaram
Damage to the endotracheal tube (ETT) is common in head and neck surgeries, especially in maxillary osteotomy. Airway management in such a crisis is crucial as there is risk of aspiration of blood into lungs, hypoxia and apnoea. This case illustrates a patient with an anticipated difficult airway who had an intraoperative damage to the ETT and was successfully managed by re-intubation with fiberoptic bronchoscope in a minimal apnoea period of <15 s using a new technique.
April 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28507870/intraoperative-change-in-defect-size-during-maxillary-reconstruction-using-surgical-guides-created-by-cad-cam
#5
Daiki Morita, Toshiaki Numajiri, Hiroko Nakamura, Shoko Tsujiko, Yoshihiro Sowa, Makoto Yasuda, Shigeru Hirano
Surgical osteotomy guides created by computer-aided design/computer-aided manufacturing (CAD/CAM) have been developed and are now widely used in maxillofacial reconstruction. However, there are no standard procedures for dealing with an intraoperative change in defect size. We report on a case in which we used our CAD/CAM guides to deal with an intraoperative change in defect size in a maxillary reconstruction. We planned the maxillary reconstruction using a free fibula flap because of left maxillary sinus cancer in a 73-year-old man...
April 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28496230/invasive-cervical-resorption-and-the-oro-facial-cleft-patient-a-review-and-case-series
#6
A O'Mahony, C McNamara, A Ireland, J Sandy, J Puryer
Introduction Invasive cervical resorption (ICR) has an unknown aetiology, yet it exhibits very aggressive behaviour compared with typical external root resorption, posing a high risk of tooth loss.Aim To investigate the number of patients at the Dublin Cleft Prosthodontic Department with an oro-facial cleft who experienced ICR and to identify any possible aetiological factors.Materials and method A retrospective investigation of all oro-facial cleft patients treated at the Dublin Cleft Prosthodontic Department, St James's Hospital, Dublin...
May 12, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28489659/relationship-between-the-quantity-of-nerve-exposure-during-bilateral-sagittal-split-osteotomy-surgery-and-sensitive-recovery
#7
Paolo Gennaro, Maria Elisa Giovannoni, Niccolò Pini, Ikenna Valentine Aboh, Guido Gabriele, Giorgio Iannetti, Flavia Cascino
AIM AND OBJECTIVES: The purpose of this study was to evaluate how different exposures of the V3 nerves during orthognathic surgery impact neurosensory disturbances. METHODS: The study included 127 patients who underwent either bilateral sagittal split osteotomy (BSSO) or BSSO with maxillary le Fort 1. They were divided into 6 groups, identified by the quantity of V3 nerve exposure. All patients were examined in a pre-op period and again after 1, 3, 6 months post-op...
May 9, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28481696/contribution-of-the-pdl-to-osteotomy-repair-and-implant-osseointegration
#8
X Pei, L Wang, C Chen, X Yuan, Q Wan, J A Helms
Our objective was to clarify the fate of the periodontal ligament (PDL) retained in the socket after tooth extraction, then determine if this tissue contributed to the osseointegration of "immediate" implants placed in these fresh extraction sockets. Mice underwent maxillary first molar extraction, the residual PDL was removed by an osteotomy, and titanium implants were placed. The osteotomy was created in such a way that the palatal surface was devoid of PDL remnants while the buccal, mesial, and distal surfaces retained PDL fibers...
May 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28479048/digital-design-of-functional-surgery-for-odontogenic-cyst-intruding-into-maxillary-sinus
#9
Ying Kai Hu, Chi Yang, Guang Zhou Xu, Qian Yang Xie
INTRODUCTION: Traditional Caldwell-Luc approach needs modifications for odontogenic cysts intruding into the maxillary sinus, to preserve sinus mucosa and bony contour. Recently, digital technology has been widely applied to the field of maxillofacial surgery, guiding the surgical plan and improving its accuracy. OBJECTIVE: This study attempted to present and evaluate the functional surgery of odontogenic cysts intruding into the maxillary sinus using a computer-assisted pre-surgical design...
March 19, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28468158/velopharyngeal-insufficiency-after-le-fort-i-osteotomy-in-a-patient-with-undiagnosed-occult-submucous-cleft-palate
#10
Rushil R Dang, Bonnie L Padwa, Cory M Resnick
The authors present a 16-year-old patient with no known history of cleft palate who developed velopharyngeal insufficiency after a Le Fort I osteotomy performed for the correction of maxillary hypoplasia and a Class III malocclusion. Postoperative evaluation revealed the presence of velopharyngeal insufficiency and subtle findings of an occult submucous cleft palate. She had a pharyngeal flap 6 months later with successful correction of the velopharyngeal insufficiency. This case illustrates the need to screen for submucous cleft palate prior to orthognathic surgery...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28463990/the-presence-of-bacterial-microcolonies-on-the-maxillary-sinus-ciliary-epithelium-in-healthy-young-individuals
#11
Monika Morawska-Kochman, Krzysztof Marycz, Katarzyna Jermakow, Kamil Nelke, Wojciech Pawlak, Marek Bochnia
OBJECTIVE: The aim of this cross-sectional in vitro study was to evaluate the mucosal surfaces of healthy maxillary sinuses, explore different forms of bacterial microorganism colonies present on the mucous membrane, and determine a mucosal surface area they occupy. METHODS: Samples of the maxillary sinus mucosa were collected from 30 healthy patients (M = 11; F = 19). The material was obtained during the Le Fort I osteotomy performed during corrective jaw surgery...
2017: PloS One
https://www.readbyqxmd.com/read/28462475/use-positional-screws-for-le-fort-i-osteotomy-fixation-technical-note
#12
Rafael Linard Avelar, Maykel Sullyvan Marinho de Souza, Eduardo Costa Studart Soares, Rodrygo Nunes Tavares
In recent years, several studies related to fixation systems have been published, but few suggest any variations of the Le Fort I osteotomy technique, and the use of plates and screws placed along the canine and zygomatic pillar are common. The 20-year-old patient with Crouzon syndrome presented with severe hypoplasia of the maxillary, mandibular prognathism, and class III facial pattern. The patient underwent orthognathic surgery and high Le Fort I osteotomy with the fixation of eight positional screws. The aim of this paper is to describe a different technique for the fixation in high maxillary osteotomies, which can be used in specific cases...
May 1, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28444019/non-surgical-treatment-of-transverse-deficiency-in-adults-using-microimplant-assisted-rapid-palatal-expansion-marpe
#13
Daniel Paludo Brunetto, Eduardo Franzzotti Sant'Anna, Andre Wilson Machado, Won Moon
INTRODUCTION: Maxillary transverse deficiency is a highly prevalent malocclusion present in all age groups, from primary to permanent dentition. If not treated on time, it can aggravate and evolve to a more complex malocclusion, hindering facial growth and development. Aside from the occlusal consequences, the deficiency can bring about serious respiratory problems as well, due to the consequent nasal constriction usually associated. In growing patients, this condition can be easily handled with a conventional rapid palatal expansion...
February 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28439173/surgical-correction-of-brodie-bite-in-adults-a-novel-surgical-splint
#14
P Ratna, B Srinivasan, R Devaki Vijayalakshmi, C Ravanth Kumar
INTRODUCTION: The incidence of telescopic bite is a rare occurrence. Brodie bite malocclusions manifest with severe skeletal and dental transverse, sagittal and vertical problems. MATERIALS AND METHODS: A patient presenting with a telescopic bite and mandibular retrognathism was treated by orthognathic approach. A unique surgical splint was used as an aid in performing the maxillary constriction and segmental osteotomy. CONCLUSION: The telescopic bite was corrected successfully and occlusal rehabilitation was achieved...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28439169/the-cortical-boundary-line-as-a-guide-for-incisor-re-positioning-with-anterior-segmental-osteotomies
#15
Abraham Vinod Korath, Ratna Padmanabhan, Anantanarayanan Parameswaran
Anterior alveolar anatomical constraints involving presurgical orthodontic incisor repositioning are often unrecognized and overlooked during orthodontic-surgical treatment planning. A clear discrimination of this cortical limitation is invaluable during the planning stage as it permits the consideration of alternative approaches like the anterior maxillary osteotomy for effecting the required incisor movement. A simple reference line termed the "Cortical Boundary Line" is introduced to facilitate the clinical translation of this information and through suitable case illustrations, the construction of the reference line using the conventional lateral cephalometric radiograph and its usefulness as an adjunct in aiding decisions on orthodontic incisor decompensation is highlighted...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28438597/massive-middle-cerebral-artery-infarction-after-surgically-assisted-rapid-palatal-expansion-a-case-report
#16
Kenneth Kufta, Luis Perez Melean, M Sean Grady, Neeraj Panchal
Dentofacial deformities have a marked impact on a patient's quality of life. Fortunately, these deformities often can be corrected through orthodontic and surgical treatment. In adults, transverse maxillary discrepancies are often corrected by performing a surgically assisted rapid palatal expansion (SARPE) procedure. This procedure is accompanied by many of the same complications involved in performing a Le Fort I osteotomy. Although major complications from maxillary surgery are uncommon, severe hemorrhage and cerebrovascular accidents are real risks accompanied by serious sequelae...
March 31, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28432875/one-step-surgical-correction-of-transverse-and-anteroposterior-maxillary-deficiencies-using-wire-fixation-a-new-approach-and-long-term-stability
#17
Max Domingues Pereira, Vivian Farfel, Gabriela Pereira Ribeiro Prado, Lydia Masako Ferreira
PURPOSE: To describe a retrospective assessment of the long-term stability of a new approach using wire fixation for 1-step surgical correction of transverse and anteroposterior maxillary deficiencies. PATIENTS AND METHODS: The authors implemented a case series of 5 adult patients (3 men and 2 women; mean age, 31.4 yr) needing maxillary advancement less than 5 mm and had transverse maxillary deficiency greater than 7 mm who underwent total Le Fort I and median palatal suture osteotomies and had their maxilla advanced and stabilized bilaterally with stainless steel wire...
March 22, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28406135/sliding-malar-bone-augmentation-technique-with-a-high-le-fort-i-surgically-assisted-rapid-maxillary-expansion
#18
G Dergin, P Aktop, S Biren, S Aktop
The purpose of this report is to evaluate the effectiveness of a high Le Fort I osteotomy design, including the malar bones, which allows segment sliding over the zygoma and forces the osteotomized segment to move forward with distraction. Two patients (male, 23-and 30-year-old) with malar deficiency underwent high Le Fort I osteotomy and surgically assisted rapid maxillary expansion procedure was followed. Records were taken before and 6 months after surgery for comparison, including intra and extra oral photographs and three-dimensional cone-beam computed tomography (CBCT) images...
April 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28399616/orthodontic-surgical-treatment-and-respiratory-function-rhinomanometric-assessment
#19
Guido Galbiati, Cinzia Maspero, Lucia Giannini, Guia C Guenza, Federica Zanoni, Giampietro Farronato
BACKGROUND: Several correlations between morphological and/or positional alterations of the jaws and respiratory functional impairments have been reported. Nasal airway obstruction represents a critical issue with no clearly defined gold standard as for its measurement. Rhinomanometry was adopted by multiple Authors to evaluate whether patients with malocclusion developed respiratory functional changes after an orthodontic-surgical treatment. However, there are contrasting findings in the literature regarding the possibility of improving the respiratory function by means of surgically-assisted rapid palatal expansion (SARPE) or bimaxillary repositioning of the bony bases...
June 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28385384/carotid-jugular-fistula-after-le-fort-i-osteotomy
#20
REVIEW
P R Osborne, T F V Sverzut, A E Trivellato, C M Matias, C E Sverzut, A T Sverzut
Le Fort I osteotomy is the technique most applied worldwide in the treatment of dentoskeletal deformity involving the maxilla. Even though it is considered a very safe technique with good intra- and postoperative results, many complications have been described. This paper presents a case of carotid jugular fistula developed in a 22-year-old white male submitted to Le Fort I osteotomy for the treatment of anteroposterior maxillary deficiency, and discusses the possible aetiology and management of this serious complication...
April 3, 2017: International Journal of Oral and Maxillofacial Surgery
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