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Maxillary reconstruction

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https://www.readbyqxmd.com/read/28805958/large-orbital-defect-reconstruction-in-the-setting-of-globe-sparing-maxillectomy-the-titanium-hammock-and-layered-fibula-technique
#1
Samuel J Trosman, Timothy M Haffey, Rafael A Couto, Michael A Fritz
INTRODUCTION: The purpose of our study was to describe a novel technique for reconstruction of orbital defects after maxillectomy using a non-anatomic titanium mesh suspension of orbital contents for both support and volume correction. This construct is then articulated with a layered fibula osteocutaneous free flap that restores orbital rim, zygoma, and maxillary alveolus. We herein present our application of this technique, including refinements over time and long-term outcomes. METHODS: A retrospective review was performed on 12 patients who underwent reconstruction of Brown class III orbitopalatomaxillary defects with extensive orbital involvement (at minimum complete orbital floor and rim absent) with titanium mesh sling and a layered fibula free flap...
August 14, 2017: Microsurgery
https://www.readbyqxmd.com/read/28803739/two-stage-reconstruction-of-the-severely-deficient-alveolar-ridge-bone-graft-followed-by-alveolar-distraction-osteogenesis
#2
A Rachmiel, O Emodi, D Aizenbud, D Rachmiel, D Shilo
Distraction osteogenesis for the augmentation of severe alveolar bone deficiency has gained popularity during the past two decades. In cases where the vertical bone height is not sufficient to create a stable transport segment, performing alveolar distraction osteogenesis (ADO) is not possible. In these severe cases, a two-stage treatment protocol is suggested: onlay bone grafting followed by ADO. An iliac crest onlay bone graft followed by ADO was performed in 13 patients: seven in the mandible and six in the maxilla...
August 10, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28796110/surgery-navigation-in-treating-congenital-midfacial-dysplasia-of-patients-with-facial-cleft
#3
Dong Li, Shanshan Bai, Zheyuan Yu, Liang Xu, Jie Yuan, Haisong Xu, Min Wei
AIM: To explore a new accurate way for the treatment of congenital midfacial dysplasia in facial cleft patients. MATERIALS AND METHODS: Between November 2015 and November 2016, 8 patients with nasal deformity and midfacial dysplasia (Tessier Nos. 3-11 cleft) were collected (median age, years; range = 15-20 years). Expanded frontal flap for nasal reconstruction and image-guided navigation-assisted surgery for modified nasal-maxillary-hard palatine osteotomy to advance the peri-pyriform bone structure were performed in all the patients...
August 8, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28791817/binder-syndrome-clinical-findings-and-surgical-treatment-of-18-patients-at-the-department-of-plastic-surgery-in-polanica-zdr%C3%A3-j
#4
Piotr H Drozdowski, Ireneusz Łątkowski, Mateusz G Zachara, Piotr Wójcicki
BACKGROUND: Binder syndrome (BS) is an uncommon congenital underdevelopment of the maxilla and nasal skeleton. Other clinical features include a hypoplastic or absent anterior nasal spine; a short, flat nose with short columella; an acute nasolabial angle; a convex upper lip and class III malocclusion. OBJECTIVES: The aim of the study was to outline the major characteristics of BS and to present a variety of surgical treatment methods. MATERIAL AND METHODS: The study included 18 patients treated in the authors' department from 1989 to 2013...
May 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28770162/squamous-cell-carcinoma-of-the-buccal-mucosa-involving-the-masticator-space-a-case-report
#5
Il-Hyung Kim, Hoon Myoung
Squamous cell carcinoma of the buccal mucosa has an aggressive nature, as it grows rapidly and penetrates well with a high recurrence rate. If cancers originating from the buccal mucosa invade adjacent anatomical structures, surgical tumor resection becomes more challenging, thus raising specific considerations for reconstruction relative to the extent of resection. The present case describes the surgical management of a 58-year-old man who presented with persistent ulceration of the mucosal membrane and a mouth-opening limitation of 11 mm...
June 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28756563/the-zygomatic-implant-perforated-zip-flap-a-new-technique-for-combined-surgical-reconstruction-and-rapid-fixed-dental-rehabilitation-following-low-level-maxillectomy
#6
C J Butterworth, S N Rogers
This aim of this report is to describe the development and evolution of a new surgical technique for the immediate surgical reconstruction and rapid post-operative prosthodontic rehabilitation with a fixed dental prosthesis following low-level maxillectomy for malignant disease.The technique involves the use of a zygomatic oncology implant perforated micro-vascular soft tissue flap (ZIP flap) for the primary management of maxillary malignancy with surgical closure of the resultant maxillary defect and the installation of osseointegrated support for a zygomatic implant-supported maxillary fixed dental prosthesis...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28740271/fabrication-of-a-3d-printing-definitive-obturator-prosthesis-a-clinical-report
#7
Theodoros Tasopoulos, Georgios Kouveliotis, Grigoris Polyzois, Vasiliki Karathanasi
INTRODUCTION: Digital technologies related to imaging and manufacturing provide the clinician with a wide variety of treatment options. Stereolithography (SLA) offers a simple and predictable way for an accurate reconstruction of congenital or acquired defects. CLINICAL CASE: A 65-years old cancer patient with non- keratinized squamous cell carcinoma of left maxillary sinus came for a prosthetic clinical evaluation. A bilateral maxillectomy was performed and the treatment plan included definite obturator prosthesis for the upper arch...
March 2017: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/28738192/maxillary-reconstruction-using-submental-artery-island-flap-and-sagittal-mandibular-ramus-coronoid-process-graft-pedicled-with-temporalis-muscle
#8
W H Wang, Z R Zou, B Xu, W Q Wang, S Y Shen
PURPOSE: The purpose of this study is to describe maxillary reconstruction using the submental artery island flap and the sagittal mandibular ramus and coronoid process graft pedicled with the temporalis muscle through the modified lateral lip and submandibular approach. MATERIALS AND METHODS: From May 2013 to September 2016, 11 patients with maxillary defects secondary to maxillary cancer ablation who underwent maxillary reconstruction using a submental artery island flap and a sagittal mandibular ramus and coronoid process graft pedicled with the temporalis muscle through the modified lateral lip and submandibular approach were enrolled in this prospective study...
June 29, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28732224/three-dimensional-changes-in-the-upper-airway-of-skeletal-class-iii-patients-after-different-orthognathic-surgical-procedures
#9
Yuxue Yang, Kai Yang, Ying Zhao
PURPOSE: We hypothesized that 3-dimensional changes in the upper airway of patients with skeletal Class III malocclusion are different after mandibular setback and maxillary advancement (MSMA) compared with mandibular setback (MS) and that upper airway changes and the amount of jaw movement are correlated. PATIENTS AND METHODS: Skeletal Class III patients who underwent MS surgery or MSMA surgery were included in this retrospective cohort study. Cone beam computed tomography scans were acquired before and 3 months after surgery...
June 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28730682/structure-and-development-of-the-subesophageal-zone-of-the-drosophila-brain-i-segmental-architecture-compartmentalization-and-lineage-anatomy
#10
Volker Hartenstein, Jaison J Omoto, Kathy T Ngo, Darren Wong, Philipp A Kuert, Heinrich Reichert, Jennifer K Lovick, Amelia Younossi-Hartenstein
The subesophageal zone (SEZ) of the Drosophila brain houses the circuitry underlying feeding behavior and is involved in many other aspects of sensory processing and locomotor control. Formed by the merging of four neuromeres, the internal architecture of the SEZ can be best understood by identifying segmentally reiterated landmarks emerging in the embryo and larva, and following the gradual changes by which these landmarks become integrated into the mature SEZ during metamorphosis. In previous works, the system of longitudinal fibers (connectives) and transverse axons (commissures) has been utilized as a scaffold that provides internal landmarks for the neuromeres of the larval ventral nerve cord...
July 21, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28727462/tridimensional-reconstruction-of-a-complex-iatrogenic-defect-using-orthodontic-forced-eruption-and-minimally-invasive-bone-grafting
#11
Ernesto A Lee
As the use of dental implants has become more common, so has the frequency of complications and unforeseen outcomes. This article describes the treatment of a complex iatrogenic defect secondary to a failed implant (No. 7) and multiple bone-grafting attempts in the maxillary anterior region. The patient's revealing smile line and high-risk circumstances demanded the use of an interdisciplinary treatment approach with high potential for predictable esthetic results. Forced eruption was performed to restore the alveolar height deficit and develop the compromised hard and soft tissues around teeth Nos...
July 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28726648/-cone-beam-computed-tomography-in-diagnostics-of-odontogenic-maxillary-sinusitis-case-reports
#12
E Demidova, G Khurdzidze
Diagnostic studies performed by cone beam computed tomography Morita 3D made possible to obtain high resolution images of hard tissues of upper jawbone and maxillary sinus, to detect bony tissue defects, such as odontogenic cysts, cystogranulomas and granulomas. High-resolution and three dimensional tomographic image reconstructions allowed for optimal and prompt determination of the scope of surgical treatment and planning of effective conservative treatment regimen. Interactive diagnostics helped to estimate cosmetic and functional results of surgical treatment, to prevent the occurrence of surgical complications, and to evaluate the efficacy of conservative treatment...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28720339/in%C3%A2-vitro-fit-of-cad-cam-complete-arch-screw-retained-titanium-and-zirconia-implant-prostheses-fabricated-on-4-implants
#13
Hadi Al-Meraikhi, Burak Yilmaz, Edwin McGlumphy, William Brantley, William M Johnston
STATEMENT OF PROBLEM: Computer-aided designed and computer-aided manufactured (CAD-CAM) titanium and zirconia implant-supported fixed implant prostheses on 4 implants have become popular. The precision and accuracy of their interface fit has not been widely researched. PURPOSE: The purpose of this in vitro study was to compare the marginal fit of zirconia and titanium implant-supported screw-retained CAD-CAM complete fixed dental prostheses (CFDP) fit with a standardized cast simulating the all-on-4 implant distribution...
July 15, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28702184/maxillary-artery-based-flaps-for-oral-cavity-reconstruction-a-review
#14
REVIEW
Amin Rahpeyma, Saeedeh Khajehahmadi
BACKGROUND: There are different flaps based on the branches of the maxillary artery. Flaps based on the maxillary artery branches can be used for oral cavity reconstruction in selected cases, but there is lack of comprehensive review in this topic. METHODS: A literature review was performed on Medline for maxillary artery based flaps and oral cavity reconstruction. Surgical techniques for each possible variant of maxillary artery based flaps and an example of each situation for oral cavity reconstruction is explained...
August 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28696999/the-expanding-role-of-scapular-free-flaps
#15
Alice L Tang, Shethal Bearelly, Kyle Mannion
PURPOSE OF REVIEW: The review evaluates the expanding role of scapular free flaps and its application in various complex head and neck defects. RECENT FINDINGS: The recent literature published focuses on the use of three-dimensional modeling for maxillectomy defects, expanded uses in both the megaflap, the various application of the scapular tip flap, and the feasibility of osseointegrated implants. SUMMARY: The subscapular system of flaps remains a versatile option in head and neck reconstruction...
July 10, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28692502/reconstruction-of-zygomaticomaxillary-buttress-with-mandibular-ramus-bone-graft-in-atrophic-maxillary-fracture
#16
Gabriel Mulinari-Santos, Sormani Queiroz, João Paulo Bonardi, Valthierre Nunes Lima, Juliana Zorzi Coléte, Francisley Ávila Souza, Idelmo Rangel Garcia-Júnior, Leonardo Perez Faverani
No abstract text is available yet for this article.
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28692450/advances-in-midface-reconstruction-beyond-the-reconstructive-ladder
#17
Antoine Eskander, Stephen Y Kang, Theodoros N Teknos, Matthew O Old
PURPOSE OF REVIEW: This article reviews the anatomy and function of the midface, defect classifications and the breadth of common and novel reconstructive techniques including medical modeling, dental splints, and dental rehabilitation. RECENT FINDINGS: Historically many classification systems for midface and maxillary defects exist but most defects are unique and an individualized approach is required. There has been an increased interest in using regional pedicled flaps with bone for reconstruction...
July 7, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28677938/alveolar-splitting-with-piezosurgery-bone-bank-grafts-and-nobelactive-implants-as-an-alternative-to-major-bone-grafting-for-maxillary-reconstruction
#18
Massimo Albanese, Giulia Ricciardi, Dario Donadello, Alessandra Lucchese, Federico Gelpi, Alessandro Zangani, Daniele DE Santis, Alessandro Rizzini, Alberto Rossetto, Dario Bertossi
BACKGROUND: Piezo-surgery represents a novel alternative technique. The Piezo-surgery is well tolerated and permits a large number of applications in decribed literature. The principle of piezo-surgery consists into inducing micro-vibrations to a metallic insert with a particular custom. The aim of this article is to study and to evaluate the use of Nobelactive implants in combination with piezosurgical split-crest technique in severe atrophy of the upper maxilla. This approach allows avoiding the use of onlay grafts, due to rise the trasversal width of the crestal bone, which could have more complications and uncertain prognosis...
July 4, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28675541/novel-approach-to-maxillary-reconstruction-using-osteocutaneous-free-tissue-transfer-with-a-customized-stent
#19
Vivek R Varma, Yin Yiu, Meade Van Putten, Tiffany L Kessling, Enver Ozer, Amit Agrawal, Theodoros Teknos, Stephen Y Kang, Matthew O Old
BACKGROUND: Computer-guided 3D virtual planning and customized templates are novel and effective methods aiding maxillary reconstruction, particularly during osteocutaneous free tissue transfer of complex defects. However, virtual planning and modelling is often expensive. METHODS: We present a new method to reconstruct complex defects with a surgical stent designed from presurgical casts. We present 2 patients who underwent this technique. Reconstruction in both cases was aided by a surgical stent fashioned preoperatively to approximate the anatomic dimensions of the defect, guiding the shape and orientation of the flap during inset to aid in dental rehabilitation...
July 4, 2017: Head & Neck
https://www.readbyqxmd.com/read/28671104/nitroglycerin-hypotensive-effect-and-application-in-a-combined-surgery-for-reconstruction-after-ipsilateral-maxillectomy-and-orbit-evisceration
#20
Yuhang Sun, Xiaohui Dong, Guofeng Zhang, Jing An, Haojun Yuan
The oral and maxillofacial region is rich in blood, and it is often difficult to stop bleeding during the operation of maxilla. Nitroglycerin is one of the most commonly used antihypertensive drugs in our hospital. We observed the effect of controlled hypotension in patients with maxillary resection. In group N, the patients had different degrees of tachycardia after using nitroglycerin only. In addition, nitroglycerin has the characteristics of rapid drug resistance. A combined reversed temporal muscle flap and random forehead flap technique was performed successfully to reconstruct the large defect after ipsilateral maxillectomy and orbit evisceration...
May 2017: Pakistan Journal of Pharmaceutical Sciences
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