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Maxillary reconstruction

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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
https://www.readbyqxmd.com/read/28299226/dental-implant-placement-with-simultaneous-anterior-maxillary-reconstruction-with-block-and-particulate-fresh-frozen-allograft-bone-a-case-report-with-24-month-follow-up-data
#10
J S Vieira, E M Brandão-Filho, F R Deliberador, J C Zielak, A F Giovanini, T M Deliberador
Fresh frozen allograft bone is routinely used in orthopedic surgery for the reconstruction of large bone defects, and its use in oral and maxillofacial surgery is increasing. The purpose of this case was to demonstrate the installation of dental implants and the use of fresh frozen bone for reconstruction of anterior maxilla in the same surgery. This case report presents the insertion of dental implants followed immediately by a placement of fresh frozen allograft in block and particle for a reconstruction of atrophic anterior maxillary in the same surgery...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28298973/effect-of-different-mixing-and-placement-methods-on-the-quality-of-mta-apical-plug-in-simulated-apexification-model
#11
Negin Ghasemi, Maryam Janani, Tahmineh Razi, Faezeh Atharmoghaddam
BACKGROUND: It is necessary apical plug material to exhibit proper adaptation with the root canal walls. Presence of voids at the interface between the root canal wall and this material result in micro leakage, which might have a relationship with post treatment disease. The aim of the present study was to evaluate the effect of different mixing (manual and ultrasonic) and placement (manual and manual in association with indirect ultrasonic) method of Mineral Trioxide Aggregate (MTA) on the void count and dimension in the apical plug in natural teeth with simulated open apices...
March 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28298832/reconstruction-of-interdental-papilla-using-autogenous-bone-and-connective-tissue-grafts
#12
Santhanakrishnan Muthukumar, Pooja Ajit, Shiyamali Sundararajan, Suresh Ranga Rao
Previous studies have reported the management of Class I and II papillary defects, but knowledge on Class III defects, estimated to have a poor periodontal prognosis, remains minimal. In this case report, a Class III papillary defect reconstruction was attempted mainly since the patient reported with difficulty in phonetics. In Stage I, autogenous bone graft from the maxillary tuberosity and subepithelial connective tissue graft was augmented to decrease the distance between the interdental bone crest and contact point, simultaneously achieving a switch in the periodontal biotype...
July 2016: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/28296982/management-of-extraoral-complications-in-a-patient-treated-with-four-zygomatic-implants
#13
Andrew Dawood, Nicholas Kalavresos
This article details the significant complications associated with treatment of a patient who underwent maxillary reconstruction based entirely on zygomatic implants. The use of zygomatic implants is becoming increasingly widespread, and treatment has been shown to be predictable and generally free of surgical complications. However, extending from the maxillary alveolus, alongside or through the maxillary antrum, toward the zygoma or orbital rim, these long implants have the potential to create a range of complications that may be more serious than those encountered with conventional dental implants...
March 15, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28295569/simultaneous-vascularized-bony-reconstruction-of-the-maxilla-and-mandible-using-a-single-fibula-a-case-report
#14
Alexander F Mericli, Jonathan S Friedstat, Edward I Chang, Matthew M Hanasono
Simultaneous maxillary and mandibular reconstruction is exceedingly rare. These are complicated cases, requiring consideration of multiple variables: defect components, donor site morbidity, recipient vessels, and so forth. We describe a unique case of secondary maxillary/mandibular reconstruction in a 59-year-old male. The original defect was created after removal of a buccal squamous cell carcinoma, involving the external cheek skin, buccal mucosa, right mandibular body, and right inferior maxilla; a free vertical rectus abdominis musculocutaneous flap was used for the initial reconstruction...
March 2017: Microsurgery
https://www.readbyqxmd.com/read/28294197/cone-beam-analysis-of-the-buccal-bone-associated-%C3%A2-with-a-dental-implant-a-tridimensional-assessment-case-report
#15
Oscar González-Martín, Mario Veltri, Cert Perio
OBJECTIVE: This case report presents cone beam computed tomography (CBCT) three-dimensional (3D) assessment of the buccal bone associated with an implant. METHOD AND MATERIALS: A patient who had immediate implant replacement of a maxillary incisor received a CBCT examination after 6 months. The scanned volume was then subjected to segmentation of the buccal bone associated with the implant and to its three-dimensional rendering. RESULTS: Virtual reconstruction allowed volumetric assessment of the buccal plate, and of the buccal marginal bone level...
March 14, 2017: Quintessence International
https://www.readbyqxmd.com/read/28293441/free-gingival-graft-to-increase-keratinized-mucosa-after-placing-of-mandibular-fixed-implant-supported-prosthesis
#16
Danny Omar Mendoza Marin, Andressa Rosa Perin Leite, Lélis Gustavo Nícoli, Claudio Marcantonio, Marco Antonio Compagnoni, Elcio Marcantonio
Insufficiently keratinized tissue can be increased surgically by free gingival grafting. The presence or reconstruction of keratinized mucosa around the implant can facilitate restorative procedure and allow the maintenance of an oral hygiene routine without irritation or discomfort to the patient. The aim of this clinical case report is to describe an oral rehabilitation procedure of an edentulous patient with absence of keratinized mucosa in the interforaminal area, using a free gingival graft associated with a mandibular fixed implant-supported prosthesis...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28291858/alveolar-ridge-dimension-6-months-after-implant-placement-with-simultaneous-hard-tissue-augmentation
#17
Siegfried Martin Heckmann, Barbara Mörtlbauer, Dominik Rieder, Manfred Wichmann, Tim Krafft, Antonios Moralis
PURPOSE: When failing front teeth are replaced by implants, vestibular bone deficiencies frequently require augmentation, even though the amount of missing alveolar volume may vary. The objective of this study was to analyze the horizontal alveolar ridge dimension after implant placement and simultaneous augmentation, and to compare it to the condition at the contralateral natural site. MATERIALS AND METHODS: Forty-eight patients with a failing maxillary incisor received an immediate or early implant (Straumann Bone Level), according to a randomized study protocol...
March 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28286396/reconstruction-of-a-post-traumatic-anterior-maxillary-defect-by-transport-distraction-osteogenesis
#18
K Rajkumar, R S Neelakandan, Pradeep Devadoss, T K Bandyopadhyay
Rehabilitation of segmental defects of maxilla presents a reconstructive challenge to obtain an ideal osseous form and height with adequate soft tissue investment. Though variety of prosthetic and surgical reconstructive options like the use of vascularized and non vascularized bone grafts are available they produce less than optimal results. Bone transport distraction is a reliable procedure in various maxillofacial bony defect reconstruction techniques. We describe herein a technique of maxillary bone transport distraction using an indigenously designed, custom made trifocal transport distractor performed in a post traumatic avulsive defect of the anterior maxilla...
March 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28283757/concept-of-patient-specific-shape-memory-implants-for-the-treatment-of-orbital-floor-fractures
#19
Ronny Grunert, Maximilian Wagner, Christian Rotsch, Harald Essig, Susanna Posern, Friedemann Pabst, Welf-Guntram Drossel, Juergen Lichtenstein
PURPOSE: We will aim to develop implants made of a Ni-Ti shape memory alloy which can be applied for the treatment of midface fractures, such as isolated orbital floor fractures. These can then be implanted in a compressed form and unfold automatically in the body. With the help of newly developed application instruments, the implants can be applied along transnasal and transantral approaches into the maxillary sinus. Our objective is to evaluate the operation process and the functionality of these implants, already in a pre-investigation by an experienced surgeon on a phantom...
March 10, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28280726/developing-customized-dental-miniscrew-surgical-template-from-thermoplastic-polymer-material-using-image-superimposition-cad-system-and-3d-printing
#20
Yu-Tzu Wang, Jian-Hong Yu, Lun-Jou Lo, Pin-Hsin Hsu, CHun-Li Lin
This study integrates cone-beam computed tomography (CBCT)/laser scan image superposition, computer-aided design (CAD), and 3D printing (3DP) to develop a technology for producing customized dental (orthodontic) miniscrew surgical templates using polymer material. Maxillary bone solid models with the bone and teeth reconstructed using CBCT images and teeth and mucosa outer profile acquired using laser scanning were superimposed to allow miniscrew visual insertion planning and permit surgical template fabrication...
2017: BioMed Research International
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