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Maxillary osteotomy

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https://www.readbyqxmd.com/read/29119091/alar-width-changes-due-to-surgically-assisted-rapid-palatal-expansion-a-meta-analysis
#1
REVIEW
Kevin C Lee, Michael Perrino
A major objective of orthognatic surgery is the aesthetic outcome. Treatments only correcting for dentoskeletal deformities are not sufficient for optimal facial results because undesirable soft tissue changes may accompany skeletal manipulations. The primary objective of this study was to investigate alar base width (ABW) changes a minimum of 6 months following surgically-assisted rapid palatal expansion (SARPE). The following electronic databases and citation indices were searched: PubMed, Cochrane Library, Scopus, Web of Science, Embase, and Virtual Health Library...
October 2017: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/29117044/crestal-sinus-augmentation-in-the-presence-of-an-antral-pseudocyst
#2
Ji-Hyeon Oh, Xueyin An, Seung-Mi Jeong, Byung-Ho Choi
PURPOSE: Antral pseudocysts classically have a well-defined, hyperdense, unilocular, dome-shaped appearance in radiographs. The best therapeutic approach for treating these cysts in the context of sinus floor augmentation remains controversial. This article presents a new technique that allows both sinus membrane elevation and cyst removal through a crestal approach in patients with pseudocysts in the maxillary sinus. MATERIALS AND METHODS: The technique combined aspiration of the cysts during sinus floor elevation with a sinus augmentation procedure using a hydraulic sinus elevation system...
November 6, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/29116013/the-influence-of-dexamethasone-on-postoperative-swelling-and-neurosensory-disturbances-after-orthognathic-surgery-a-randomized-controlled-clinical-trial
#3
W Semper-Hogg, M A Fuessinger, T W Dirlewanger, C P Cornelius, M C Metzger
BACKGROUND: Orthognathic surgery is associated with considerable swelling and neurosensory disturbances. Serious swelling can lead to great physical and psychological strain. A randomized, prospective, controlled clinical trial was realized in order to evaluate the effect of a preoperative intravenous dexamethasone injection of 40 mg on postoperative swelling and neurosensory disturbances after orthognathic surgery. METHODS: Thirty-eight patients (27 male and 11 female) patients, all with the indication for an orthognathic surgery, were enrolled in this study (mean age: 27...
November 7, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/29103446/miniscrew-assisted-multidisciplinary-orthodontic-treatment-with-surgical-mandibular-advancement-and-genioplasty-in-a-brachyfacial-class-ii-patient-with-mandibular-asymmetry
#4
Vanessa Paredes-Gallardo, Verónica García-Sanz, Carlos Bellot-Arcís
This article describes the complex dental treatment of a 43-year-old man with skeletal Class II, mandibular asymmetry, severe brachyfacial pattern, Class II Division 2, canting of the occlusal plane, and an increased curve of Spee. To achieve optimal results, we adopted a multidisciplinary approach to treatment, involving periodontics, oral surgery, orthodontics, maxillofacial surgery, and prosthetics specialists. After periodontal treatment, miniscrews were placed to correct the occlusal plane canting and the excessive curve of Spee with orthodontic treatment...
November 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29102561/reaching-the-vertical-versus-horizontal-target-position-in-multi-segmental-le-fort-i-osteotomy-is-more-difficult-but-yields-comparably-stable-results-to-one-segment-osteotomy
#5
J Meewis, D Govaerts, B Falter, K Grisar, E Shaheen, G Van de Vyvere, C Politis
This retrospective cohort study evaluated the postoperative outcomes of preoperatively planned positional changes for Le Fort I osteotomy in 77 patients (average age 26.6 years). Movement relapse and planning accuracy were evaluated by lateral cephalometric analysis, with an average follow-up of 257 days. In one-segment osteotomy cases, 73% of the horizontal movements were positioned within 2mm of the surgical plan. With posterior-inferior repositioning of the maxilla, results fell within 2mm of the prescribed plan in 60% of cases...
November 1, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29092758/navigation-guided-resection-of-maxillary-tumours-the-accuracy-of%C3%A2-computer-assisted-surgery-in-terms-of-control-of-resection-margins%C3%A2-a-feasibility-study
#6
Achille Tarsitano, Francesco Ricotta, Gennaro Baldino, Giovanni Badiali, Angelo Pizzigallo, Valerio Ramieri, Piero Cascone, Claudio Marchetti
INTRODUCTION: Surgical treatment of maxillary tumours is often highly complex. The three-dimensional anatomy of the mid-face renders both correct intraoperative orientation and adequate oncological safety difficult to obtain. Recently, computer-assisted techniques and intraoperative navigation have been applied to oncological surgery treating head and neck cancer. However, only a few studies have explored whether preoperative virtual resection planning and intraoperative control of resection margins allow assessment of the surgical margins of the tumour...
September 30, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29077680/complications-from-surgically-assisted-rapid-maxillary-expansion-with-haas-and-hyrax-expanders
#7
Max Domingues Pereira, Alexandre Fukuzo Koga, Gabriela Pereira Ribeiro Prado, Lydia Masako Ferreira
The current study aimed at comparing the number and type of undesired outcomes during and after the maxillary expansion performed with HYRAX and HAAS expanders. A total of 90 patients (41 males and 49 females, 45.6% and 54.4%, respectively) aged 18 to 59 (mean age of 26.1; standard deviation [SD] = 7.4) underwent subtotal Le Fort I osteotomy and pterygomaxillary disjunction following surgically assisted rapid maxillary expansion (SARME) carried out using HAAS (n = 29; 48.3% male and 51.7% female; mean age = 27: SD = 7...
October 26, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29062650/corrected-cephalometric-analysis-to-determine-the-distance-and-vector-of-distraction-osteogenesis-for-syndromic-craniosynostosis
#8
Shinji Kobayashi, Toshihiko Fukawa, Takashi Hirakawa, Toshihiko Satake, Jiro Maegawa
BACKGROUND: The purpose of this study was to confirm the utility of a corrected cephalometric analysis to facilitate the planning of distraction osteogenesis with Le Fort III osteotomy for syndromic craniosynostosis. METHODS: This prospective study involved 4 male and 2 female patients (mean patient age, 8 years 9 months; age range, 4 years 6 months to 13 years 2 months) with Crouzon syndrome who were treated with Le Fort III maxillary distraction using our previously described system of analysis of a corrected cephalogram and who underwent clinical follow-up...
September 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/29046240/comparison-of-temporomandibular-joint-and-ramus-morphology-between-class-ii-and-class-iii-cases-before-and-after-bi-maxillary-osteotomy
#9
Ran Iguchi, Kunio Yoshizawa, Akinori Moroi, Takamitsu Tsutsui, Asami Hotta, Ryota Hiraide, Akihiro Takayama, Tatsuya Tsunoda, Yuki Saito, Momoko Sato, Nana Baba, Koichiro Ueki
PURPOSE: The purpose of this study was to compare changes in temporomandibular joint (TMJ) and ramus morphology between class II and III cases before and after sagittal split ramus osteotomy (SSRO) and Le Fort I osteotomy. MATERIALS AND METHODS: The subjects were 39 patients (78 sides) who underwent bi-maxillary surgery. They consisted of 2 groups (18 class II cases and 21 class III cases), and were selected randomly from among patients who underwent surgery between 2012 and 2016...
September 22, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29034598/a-prospective-randomized-controlled-trial-of-the-two-window-technique-without-membrane-versus-the-solo-window-technique-with-membrane-over-the-osteotomy-window-for-maxillary-sinus-augmentation
#10
Huajie Yu, Danqing He, Lixin Qiu
BACKGROUND: Maturation of the grafted volume after lateral sinus elevation is crucial for the long-term survival of dental implants. PURPOSE: To compare endo-sinus histomorphometric bone formation between the solo- and two-window maxillary sinus augmentation techniques with or without membrane coverage for the rehabilitation of multiple missing posterior teeth. MATERIALS AND METHODS: Patients with severely atrophic posterior maxillae were randomized to receive lateral sinus floor elevation via the solo-window technique with membrane coverage (Control Group) or the two-window technique without coverage (Test Group)...
October 16, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29024621/is-atypical-swallowing-associated-with-relapse-in-orthognathic-patients-a-retrospective-study-of-256-patients
#11
Jean-Marc Foletti, Gregory S Antonarakis, Camille Galant, Delphine S Courvoisier, Paolo Scolozzi
PURPOSE: To determine the association of atypical swallowing (AS) with relapse in patients undergoing combined orthodontic and orthognathic treatment. MATERIALS AND METHODS: In this retrospective cohort study, the clinical data of all patients who underwent combined surgical and orthodontic treatment from 1998 through 2015 at the University Hospital of Geneva (Geneva, Switzerland) were reviewed. The primary outcome variables were 1) AS and 2) post-treatment relapse...
September 15, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29023297/evaluation-of-sinonasal-change-after-lefort-i-osteotomy-using-cone-beam-computed-tomography-images
#12
Seung Woo Baeg, Yun Pyo Hong, Dong Hyun Cho, Jeong Keun Lee, Seung Il Song
Orthognathic surgery including Le Fort I osteotomy involves changes in the nasal septum and maxillary sinus. This study assesses nasal septum changes after Le Fort I osteotomy using cone beam computed tomography images and evaluates mucosal changes in the maxillary sinus after the surgery.This was a retrospective study of 33 patients who underwent orthognathic surgery including Le Fort I osteotomy. To assess the maxillary sinus, changes in the mucosa of the maxillary sinus were analyzed by volume and geometry...
October 11, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29019820/split-overlapping-genioplasty-surgical-technique-morphological-and-radiological-long-term-outcomes
#13
Flore Roul-Yvonnet, Julien Quilichini, Patrick Leyder
BACKGROUND: The overlapping bone flap genioplasty, described by Tessier, was developed to treat major retrognathia or long and retruded chins. For 15 years, we have used a modified version of this technique to avoid its drawbacks. The aim of this article is to describe our modification and evaluate the long-term morphologic and radiologic outcomes. PATIENTS AND METHOD: The authors included every split-overlapping genioplasty performed in our department between 2004 and 2014...
November 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29016682/effects-of-mandibular-setback-with-or-without-maxillary-advancement-osteotomies-on-pharyngeal-airways-an-overview-of-systematic-reviews
#14
REVIEW
Su Keng Tan, Wai Keung Leung, Alexander Tin Hong Tang, Roger A Zwahlen
BACKGROUND: Mandibular setback osteotomies potentially lead to narrowing of the pharyngeal airways, subsequently resulting in post-surgical obstructive sleep apnea (OSA). OBJECTIVE: To summarize current evidence from systematic reviews that has evaluated pharyngeal airway changes after mandibular setback with or without concomitant upper jaw osteotomies. METHODOLOGY: PubMed, EMBASE, Web of Science, and Cochrane Library databases were searched with no restriction of language or date...
2017: PloS One
https://www.readbyqxmd.com/read/28980512/the-accuracy-of-maxillary-positioning-using-digital-model-planning-and-3d-printed-wafers-in-bimaxillary-orthognathic-surgery
#15
Richard R J Cousley, Mark Bainbridge, P Emile Rossouw
OBJECTIVE: Orthognathic wafers may be made using digital model movements and CAD-CAM technology. This paper analysed the accuracy of maxillary movements using this new process. DESIGN: Retrospective study of pre and post-operative cephalograms. PARTICIPANTS: Thirty consecutive orthognathic patients undergoing bimaxillary osteotomies in a UK hospital. METHODS: Jaw movements were planned using cephalometric and Orthoanalyzer™ software...
October 5, 2017: Journal of Orthodontics
https://www.readbyqxmd.com/read/28962738/facial-improvement-after-mandibular-midline-distraction-and-surgically-assisted-rapid-maxillary-expansion
#16
C Maarten Suttorp, Dries J S Desmedt, Thomas J J Maal, K Hero Breuning
This case report describes the retreatment of a 49-year-old woman with severe crowding in the mandibular incisor region and tapered maxillary and mandibular arches. Treatment consisted of mandibular midline distraction and surgically assisted rapid maxillary expansion to increase arch length. The need for proper presurgical orthodontics is described, and the complications during treatment are discussed. The results of treatment, including the superimposition of 3-dimensional facial scans, are presented. The treatment approach we used is typically indicated for patients with previous extractions of all first premolars who develop significant crowding after treatment...
October 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28953142/wide-linear-corticotomy-and-anterior-segmental-osteotomy-under-local-anesthesia-combined-corticision-for-correcting-severe-anterior-protrusion-with-insufficient-alveolar-housing
#17
Min-Ki Noh, Baek-Soo Lee, Shin-Yeop Kim, Hyeran Helen Jeon, Seong-Hun Kim, Gerald Nelson
BACKGROUNDS: This article presents an alternate surgical treatment method to correct a severe anterior protrusion in an adult patient with an extremely thin alveolus. To accomplish an effective and efficient anterior segmental retraction without periodontal complications, the authors performed, under local anesthesia, a wide linear corticotomy and corticision in the maxilla and an anterior segmental osteotomy in mandible. METHODS: In the maxilla, a wide linear corticotomy was performed under local anesthesia...
November 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28951983/high-power-diode-laser-in-the-circumvestibular-incision-for-le-fort-i-osteotomy-in-orthognathic-surgery-a-prospective-case-series-study
#18
Filipe Jaeger, Gustavo Marques Chiavaioli, Guilherme Lacerda de Toledo, Belini Freire-Maia, Marcio Bruno Figueiredo Amaral, Ricardo Alves Mesquita
The incisions during orthognathic surgery are classically performed with conventional scalpel or electrocautery. Considering that the high-power diode laser surgery may provide advantages when compared to conventional incision techniques, the current study aimed to present a prospective case series of patients submitted to circumvestibular incision for Le Fort I osteotomy. Ten patients with dentofacial deformities who underwent to rapid assisted maxillary expansion or bimaxillary orthognathic surgery were enrolled in the study...
September 26, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28927954/systematic-three-dimensional-analysis-of-wafer-based-maxillary-repositioning-procedures-in-orthognathic-surgery
#19
Timo Dreiseidler, Max-Philipp Lentzen, Matthias Zirk, Ali-Farid Safi, Joachim E Zoeller, Matthias Kreppel
PURPOSE: Little is known about the three-dimensional (3D) transfer accuracy in maxillary repositioning procedures based on conventionally manufactured dental-mounted wafers. The purpose of the present study was a systematic 3D analysis for wafer-based maxillary positioning in orthognathic surgery. MATERIALS AND METHODS: A total of 92 patients underwent Le Fort I in addition to mandibular bilateral sagittal split osteotomies (BSSO). Alignment of the pre- and postsurgical CBCT data sets allowed measuring maxillary position changes in axial, sagittal and transversal directions...
August 31, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28922248/maxillary-corticotomies-with-bone-to-bone-retraction-and-mandibular-segmental-osteotomy-for-correcting-an-anterior-double-protrusion
#20
Kyung A Kim, Baek-Soo Lee, Ayse Selenge Akbulut, Seong-Hun Kim, Gerald Nelson
BACKGROUNDS: This article presents maxillary corticotomies with bone-to-bone retraction and anterior segmental osteotomy (ASO) as an alternative to 2-jaw orthognathics in the bimaxilary protrusion patient with partially anchylosed maxillary anterior tooth. METHODS: The 18-year-old male, complaining of anterior protrusion, with a trauma history to the maxillary central incisor, and requesting rapid treatment, was treated with maxillary corticotomies in 2 stages and ASO in the mandible...
November 2017: Journal of Craniofacial Surgery
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