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Maxillary reconstruction

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https://www.readbyqxmd.com/read/28507870/intraoperative-change-in-defect-size-during-maxillary-reconstruction-using-surgical-guides-created-by-cad-cam
#1
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/28497678/eosinophil-fungal-rhinosinusitis-caused-by-fusarium-infection-secondary-to-odontogenic-maxillary-sinus-disease-when-collaboration-between-otolaryngologist-and-allergologist-leads-to-the-correct-diagnosis-and-therapy
#2
P Gamba, C Lombardi
Rhinitis and sinusitis usually coexist and are concurrent in most individuals; thus, the correct terminology is now "rhinosinusitis". On the basis of numerous causative factors, often co-existing in the same patient, the diagnosis of rhinosinusitis is also made by a wide variety of practitioners (allergologists, otolaryngologists, pulmonologists, primary care physicians, paediatricians, and many others). Approximately 5-15% of the population suffers from chronic rhinosinusitis, and in 10-12% of them, it is of dental origin...
May 2017: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28496391/management-of-panfacial-fracture
#3
REVIEW
Kausar Ali, Salvatore C Lettieri
Traumatic panfacial fracture repair is one of the most complex and challenging reconstructive procedures to perform. Several principles permeate throughout literature regarding the repair of panfacial injuries in a stepwise fashion. The primary goal of management in most of these approaches is to restore the occlusal relationship at the beginning of sequential repair so that other structures can fall into alignment. Through proper positioning of the occlusion and the mandibular-maxillary unit with the skull base, the spatial relationships and stability of midface buttresses and pillars can then be re-established...
May 2017: Seminars in Plastic Surgery
https://www.readbyqxmd.com/read/28492743/presence-of-cells-in-fresh-frozen-allogeneic-bone-grafts-from-different-tissue-banks
#4
Libério França Coutinho, Juliano Batista do Amaral, Érico Brito Dos Santos, Elizabeth Ferreira Martinez, Victor Angelo M Montalli, José Luiz Cintra Junqueira, Vera Cavalcanti de Araújo, Marcelo Henrique Napimoga
Bone replacement materials have been widely used to reconstruct atrophic jawbones. Based on previous reports demonstrating the presence of viable cells in bone blocks even after processing by musculoskeletal tissue banks for orthopedic use, the aim of this study was to evaluate the presence of cells in bone blocks from three Brazilian tissue banks for maxillary reconstructions. All samples were processed by the respective tissue banks, according to the guidelines of the Brazilian National Sanitary Surveillance Agency...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28486354/minimally-invasive-approach-based-on-pterygoid-and-short-implants-for-rehabilitation-of-an-extremely-atrophic-maxilla-case-report
#5
Alessandro Cucchi, Elisabetta Vignudelli, Simonetta Franco, Giuseppe Corinaldesi
INTRODUCTION: Extremely atrophic maxillae can be considered the most important indication for three-dimensional maxillary reconstruction. Different bone-augmentation techniques have been suggested to accomplish this. This article illustrates a minimally invasive approach to rehabilitation of the extremely atrophic maxilla. MATERIAL AND METHODS: A 63-year-old male patient was referred for restoration of his totally edentulous maxilla with a fixed full-arch implant-prosthetic rehabilitation...
May 8, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28473930/full-mouth-reconstruction-of-a-skeletal-class-ii-division-1-patient-with-adenoid-cystic-carcinoma-using-an-interim-immediate-obturator-and-a-definitive-obturator
#6
Mehran Bahrami, Seyed Mehran Falahchai
A 61-year-old female patient with adenoid cystic carcinoma (ACC) of the right maxilla and Angle class II division 1 malocclusion had received a subtotal maxillectomy in right side and used a conventional clasp-retained obturator. After implants placement, a maxillary interim immediate obturator (IIO) and then a definitive obturator using six endosseous implants were fabricated. During one-year follow-up, the patient was completely satisfied. Ideally, after implants placement in edentulous patients suffering from hemimaxillectomy, an implant-supported obturator (ISO) is designed in order to prevent nasal reflux and to improve speech and swallowing...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28473853/3d-evaluation-of-maxillary-sinus-using-computed-tomography-a-sexual-dimorphic-study
#7
Balaji Babu Bangi, Uday Ginjupally, Lakshmi Kavitha Nadendla, Bhavana Vadla
Purpose. Gender determination is considered to be an important step in the reconstruction of the biological profile in forensic medicine. Maxillary sinus can be used for identification of sex when other methods are indecisive. Computed tomography (CT) provides an excellent method for examining maxillary sinuses. Hence the aim of the study was to determine the accuracy of gender determination using maxillary sinus with CT. Materials and Methods. CT images were used to measure the mediolateral, superoinferior, and anteroposterior dimensions and the volume of the maxillary sinuses in 100 patients (50 males and 50 females) to determine the gender of an individual for forensic identification...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28463685/reconstruction-of-maxillary-and-orbital-floor-defect-with-free-fibula-flap-and-whole-individualized-titanium-mesh-assisted-by-computer-techniques
#8
Kun Fu, Yiming Liu, Ning Gao, Jinghua Cai, Wei He, Weiliu Qiu
PURPOSE: We sought to investigate the clinical application of free fibula flap and individualized titanium mesh through the use of a virtual planning and guiding template to assist the reconstruction of maxilla and orbital floor defects. PATIENTS AND METHODS: Between 2015 and 2016, a total of 6 adult patients with maxillary and orbital floor defects were enrolled in this study. Preoperative virtual planning, including virtual maxillary resection and fibular reconstruction, was performed in all cases according to 3-dimensional radiographic and clinical findings...
April 7, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28461046/prosthetic-rehabilitation-following-lateral-resection-of-the-mandible-with-a-long-cantilever-implant-supported-fixed-prosthesis-a-3-year-clinical-report
#9
Georgios Maroulakos, William W Nagy, Ayman Ahmed, Ioli I Artopoulou
This clinical report describes the prosthetic management of the surgical reconstruction of a patient after mandibular resection. Complete oral rehabilitation was achieved with a maxillary complete denture and a mandibular implant-supported fixed prosthesis with a custom titanium framework and a long unilateral cantilever.
April 28, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28459285/a-validation-study-of-reconstructed-rapid-prototyping-models-produced-by-two-technologies
#10
Christian Andreas Dietrich, Andreas Ender, Stefan Baumgartner, Albert Mehl
OBJECTIVE: To determine the accuracy (trueness and precision) of two different rapid prototyping (RP) techniques for the physical reproduction of three-dimensional (3D) digital orthodontic study casts, a comparative assessment using two 3D STL files of two different maxillary dentitions (two cases) as a reference was accomplished. MATERIALS AND METHODS: Five RP replicas per case were fabricated using both stereolithography (SLA) and the PolyJet system. The 20 reproduced casts were digitized with a highly accurate reference scanner, and surface superimpositions were performed...
May 1, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28439572/long-term-clinical-and-radiologic-documentation-of-a-maxillary-odontogenic-myxoma-from-early-clinical-signs-to-implant-supported-prosthodontic-rehabilitation-case-report-and-review-of-the-literature
#11
Sebastian Berger, Paul Hakl, Marius Meier, Walter Sutter, Andrej M Kielbassa, Dritan Turhani
Odontogenic myxoma (OM) is a non-metastasizing neoplasm of mesenchymal origin, arising in the tooth-bearing areas of the jaws. When regarding the whole spectrum of differential diagnoses for osteolytic jaw lesions, OM constitutes a benign tumor rarely located in the maxilla. Radiographically, displacement of teeth and frequent involvement of the sinus will be found with advanced maxillary OM. The tumor can be removed by means of several techniques, ranging from conservative measures to extended surgical procedures that differ according to type of bone resection and reconstruction of the defect...
April 24, 2017: Quintessence International
https://www.readbyqxmd.com/read/28412181/maxilla-reconstruction-with-autogenous-bone-block-grafts-computed-tomography-evaluation-and-implant-survival-in-a-5-year-retrospective-study
#12
J L Gulinelli, R A Dutra, H F Marão, S F P Simeão, G B Groli Klein, P L Santos
This retrospective study was performed to evaluate the bone thickness of the anterior maxillary region after reconstruction with autogenous bone blocks at 6 months and 5 years after surgery using computed tomography (CT) and to determine the implant survival rate. Eleven patients with a horizontal bone deficiency were treated with reconstructive procedures and implant placement. CT measurements were obtained before surgery (T0) and at 6 months (T1) and 5 years (T2) after surgery. The values were analysed statistically (analysis of variance and Tukey's test; P<0...
April 12, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28411135/silent-sinus-syndrome%C3%A2-a-traumatic-case
#13
E Février, C Vandersteen, L Castillo, C Savoldelli
INTRODUCTION: Silent sinus syndrome is an unusual cause of progressive enophthalmos and hypoglobus due to atelectasia of the maxillary sinus associated with osteolysis of the orbital floor. This syndrome is classically idiopathic, but the term is also used to describe traumatic or iatrogenic (surgical orbital decompression) cases. CASE REPORT: We report the case of a 33-year-old man who presented with a left orbital trauma without functional disorder. Computed tomography (CT) scan revealed a nondisplaced fracture of the left orbital floor...
April 11, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28407991/three-dimensional-volumetric-analysis-of-ghost-cell-odontogenic-carcinoma-using-3-d-reconstruction-software-a-case-report
#14
João Pedro Perez Gomes, Andre Luiz Ferreira Costa, Carlos Takahiro Chone, Albina Messias de Almeida Milani Altemani, João Maurício Carrasco Altemani, Carmen Silvia Passos Lima
OBJECTIVE: Ghost cell odontogenic carcinoma is a very rare malignant neoplasm. Tumor volume may be a more precise alternative for determining size, which is usually measured by maximum linear dimension. The purpose of this case report is to highlight the importance of obtaining 3-dimensional (3-D) images of the tumor for volumetric analysis to improve the chances of surgical success. This report presents a case of ghost cell odontogenic carcinoma infiltrating the maxillary sinus through the palate...
May 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28402358/surgical-treatment-of-a-peripheral-ossifying-fibroma-and-reconstruction-with-a-porcine-collagen-matrix-a-case-report
#15
José González-Serrano, Rosa María López-Pintor, Ignacio Sanz-Sánchez, Víctor Manuel Paredes, Elisabeth Casañas, Lorenzo de Arriba, Gonzalo Hernández Vallejo
A 35-year-old woman was referred to the Department of Oral Medicine and Orofacial Surgery after several recurrences of an ossifying fibroma (OF) that affected the free and attached gingiva of the maxillary right central incisor. Surgery was performed with a complete excision of the lesion together with the surrounding healthy tissue up to the bone. To guide the healing of the anterior esthetic framework and the excised tissues, a porcine collagen matrix as an alternative to connective tissue graft was used...
May 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28353305/anatomical-changes-in-the-east-asian-midface-skeleton-with-aging
#16
Ki Hyuk Sung, Anna Jeon, Sang Duck Kim, U-Young Lee, Je-Hun Lee, Seung-Ho Han, Hong-Jin Sui
PURPOSE: Understanding the aging process of the midface skeleton is considered crucial for correct facial rejuvenation. However, the canine fossa, an important morphological feature of the midface skeleton, has not yet been observed in connection with aging, despite the fact that it is the most main part of the maxillary bone. Here, the authors focus on the depression of the canine fossa to evaluate the Asian midface skeleton. METHODS: Computed tomography (CT) scans of the facial skeleton of 114 Koreans (59 males and 55 females) were reconstructed to three-dimensional (3-D) images using a 3-D analysis software program...
March 29, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28326738/-dental-implantation-in-a-patient-with-sj%C3%A3-gren-s-syndrome-a-case-report
#17
Luo Cuifen, Peng Guoguang, Feng Yuanhua, Huang Xingxiang
We reported one case of a patient with Sjögren's syndrome and dental implant. This patient was followed up for more than one year. The patient was diagnosed with Sjögren's syndrome for 5 years and treated with long-term corticosteroid. Four implant-tissue interface hydrophilic implants were placed on 15, 16, 44, and 46 of the mandibular and maxillary areas. After the surgery was completed, the patient was treated with oral antibiotic and "shenggu pills" to prevent infection and glucocorticoid to manage Sjögren's syndrome...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28323814/three-dimensional-evaluation-of-maxillary-sinus-septa-for-implant-placement
#18
Eliza Dragan, Guillaume A Odri, Gabriel Melian, Danisia Haba, Raphael Olszewski
BACKGROUND: The aim of our study was to investigate, in 3 dimensions, the maxillary sinus septa as an alternative site for dental implant placement to avoid sinus lift procedures. MATERIAL AND METHODS: We selected 100 dentate and 100 edentate patients with the presence of a maxillary sinus septum by reviewing a larger cone beam computer tomography (CBCT) database from the Department of Oral and Maxillofacial Surgery at Cliniques Universitaires Saint Luc in Bruxelles, Belgium...
March 21, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28320612/three-dimensional-image-fusion-of-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-and-contrast-enhanced-computed-tomography-for-computer-assisted-planning-of-maxillectomy-of-recurrent-maxillary-squamous-cell-carcinoma-and-defect-reconstruction
#19
Yao Yu, Wen-Bo Zhang, Xiao-Jing Liu, Chuan-Bin Guo, Guang-Yan Yu, Xin Peng
PURPOSE: The purpose of this study was to describe new technology assisted by 3-dimensional (3D) image fusion of (18)F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/computed tomography (CT) and contrast-enhanced CT (CECT) for computer planning of a maxillectomy of recurrent maxillary squamous cell carcinoma and defect reconstruction. MATERIALS AND METHODS: Treatment of recurrent maxillary squamous cell carcinoma usually includes tumor resection and free flap reconstruction...
February 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28299265/the-use-of-buccal-fat-pad-free-graft-in-closure-of-soft-tissue-defects-and-dehiscence-in-the-hard-palate
#20
Fares Kablan
INTRODUCTION: The integrity of the palatal mucosa can be lost due to congenital, pathological, and iatrogenic conditions. Various surgical techniques have been suggested for the closure of palatal defects. The aim of the current study is to present the free buccal fat pad graft as a novel technique to repair the soft-tissue defects at the palate. PATIENTS AND METHODS: During a 2-year period, the free fat tissue graft harvested from the buccal fat pad (BFP) (FBFG) and used to reconstruct five soft-tissue defects of the palate in five patients (2 women, 3 men; mean age, 34 years; range, 22-58 years)...
July 2016: Annals of Maxillofacial Surgery
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