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Zygomatic implants

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https://www.readbyqxmd.com/read/30074849/extra-sinus-zygomatic-implants-to-avoid-chronic-sinusitis-and-prosthetic-arch-malposition-12-years-of-experience
#1
Paweł Aleksandrowicz, Marta Kusa-Podkańska, Katarzyna Maria Grabowska, Lidia Zofia Kotuła, Anna Szkatuła-Łupina, Joanna Wysokińska-Miszczuk
To report retrospectively on the 12-years follow-up results of the treatment and rehabilitation of edentulous maxillae, applying extra-sinus zygomatic implants alone or in combination with intra-sinus zygomatic implants. We recruited 22 Patients with 35 zygomatic Brånemark System Implants; 24 implants in the standard Brånemark protocol through the sinus and 11 extra - sinus implants outside the sinus. Additionally, 147 regular implants were placed (Brånemark System, Straumann, Nobel Replace, SternGold). The minimum follow-up period was from 50 months to a maximum of 152 months...
August 3, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29984920/-the-modified-lip-tooth-ridge-classification-a-guide-for-edentulous-maxillary-arches
#2
Jian-Zhang Liu
According to the width and height of the maxillary alveolar ridge, the maxillary edentulous jaws can be divided into three categories by using modified lip-tooth-ridge (MLTR) classification. Class Ⅰ is characterized by sufficient bone available for implants in the vertical and horizontal aspects and is suitable for fixed implant-supported prostheses. Class Ⅱ is characterized by sufficient bone amount available for implants in a horizontal aspect but insufficient for lip support and is suitable for a fixed detachable implant-supported prosthesis...
June 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29946654/-perioperative-nursing-of-zygomatic-implant-surgery-for-patients-with-severe-periodontitis
#3
Fang Bo, Wei Gu, Xiao-Wan Ling, Yi-Qun Wu, Yue-Ping Wang
PURPOSE: To analyze the perioperative nursing characteristics about severe periodontitis patients with immediate zygomatic implantation, and to summarize the clinical nursing experience. METHODS: Preoperatively, all patients received psychological counseling, oral hygiene instruction, and periodontal care with necessary means after physical examination. Cooperative procedures were preformed between nurses and surgeon during operation. After operation, nursing interventions were given including wound care, pain control, ice compression, appropriate diet and close follow-up...
February 2018: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29946455/stresses-generated-by-two-zygomatic-implant-placement-techniques-associated-with-conventional-inclined-anterior-implants
#4
Paulo H T Almeida, Sergio H Cacciacane, Fabiana M G França
Purpose: To make a comparative evaluation, by means of the finite element method, of the stress generated on supporting tissues and prosthetic system components, using zygomatic implants with the exteriorized and extramaxillary techniques, and different placement positions, associated either with inclined anterior implants, or those without inclination. Materials and methods: Eight (8) tridimensional models were created to represent the clinical situations being researched, using the dataset of scanned images of an edentulous model...
June 2018: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/29850277/rehabilitation-of-posterior-maxilla-with-obturator-supported-by-zygomatic-implants
#5
Sankalp Mittal, Manoj Agarwal, Debopriya Chatterjee
Prosthetic rehabilitation of atrophic maxilla and large maxillary defects can be done successfully by zygomatic implant-supported prosthesis. Zygomatic implants are an avant-garde to complex and invasive-free vascularised osteocutaneous flaps, distraction osteogenesis, and the solution to flap failures. A treated case of tuberculous osteomyelitis, with a class II (Aramany's classification) maxillary defect, reported to oral maxillofacial department, Government Dental College (RUHS-CODS). The defect in this group was unilateral, retaining the anterior teeth...
2018: Case Reports in Dentistry
https://www.readbyqxmd.com/read/29806663/immediately-loaded-zygomatic-implants-vs-conventional-dental-implants-in-augmented-atrophic-maxillae-1-year-post-loading-results-from-a-multicentre-randomised-controlled-trial
#6
Rubén Davó, Pietro Felice, Roberto Pistilli, Carlo Barausse, Carlos Marti-Pages, Ada Ferrer-Fuertes, Daniela Rita Ippolito, Marco Esposito
PURPOSE: To compare the clinical outcome of immediately loaded cross-arch maxillary prostheses supported by zygomatic implants vs conventional implants placed in augmented bone. MATERIALS AND METHODS: In total, 71 edentulous patients with severely atrophic maxillas without sufficient bone volumes for placing dental implants, or when it was possible to place only two implants in the anterior area (minimal diameter 3.5 mm and length of 8 mm) and less than 4 mm of bone height subantrally, were randomised according to a parallel group design to receive zygomatic implants (35 patients) to be loaded immediately vs grafting with a xenograft, followed after 6 months of graft consolidation by placement of six to eight conventional dental implants submerged for 4 months (36 patients)...
2018: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/29774595/long-term-schneiderian-membrane-thickness-changes-following-zygomatic-implant-placement-a-retrospective-radiographic-analysis-using-cone-beam-computed-tomography
#7
Kai Zhao, Meifei Lian, Shengchi Fan, Wei Huang, Feng Wang, Yiqun Wu
OBJECTIVES: The purpose of this retrospective study was to evaluate the long-term changes in the thickness of Schneiderian membranes after zygomatic implant placement using cone beam computed tomography (CBCT). MATERIAL AND METHODS: Twenty-five consecutive patients were included in this study. All the patients underwent bilateral zygomatic implant placement. Schneiderian membrane thickness (SMT) in 49 maxillary sinuses (one sinus was not included because of early loss of the zygomatic implants) was measured using CBCT before and at least 1 year after zygomatic implant placement...
May 17, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29763506/simplifying-zygomatic-implant-site-preparation-using-ultrasonic-navigation-a-technical-note
#8
Gerardo Pellegrino, Achille Tarsitano, Valerio Taraschi, Tomaso Vercellotti, Claudio Marchetti
Zygomatic implant site preparation could be considered a challenging procedure because of the use of a very long twist drill that could sometimes be difficult to control due to the need for drilling the malar bone on an oblique surface. Ultrasound was recently suggested to achieve better control, but the specific long tips required are not readily available, and the elongated tip also tends to reduce the efficacy. This technical note describes a proposal of a novel computer-aided technique to simplify the procedure of zygomatic implant site preparation...
May 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29763505/influence-of-alveolar-bone-defects-on-the-stress-distribution-in-quad-zygomatic-implant-supported-maxillary-prosthesis
#9
Yuanyuan Duan, Ravi Chandran, Denise Cherry
PURPOSE: The purpose of this study was to create three-dimensional composite models of quad zygomatic implant-supported maxillary prostheses with a variety of alveolar bone defects around implant sites, and to investigate the stress distribution in the surrounding bone using the finite element analysis (FEA) method. MATERIALS AND METHODS: Three-dimensional models of titanium zygomatic implants, maxillary prostheses, and human skulls were created and assembled using Mimics based on microcomputed tomography and cone beam computed tomography images...
May 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29697631/facial-fractures-pearls-and-perspectives
#10
Obaid Chaudhry, Matthew Isakson, Adam Franklin, Suhair Maqusi, Christian El Amm
LEARNING OBJECTIVES: After studying this article, the participant should be able to: 1. Describe the A-frame configuration of anterior facial buttresses, recognize the importance of restoring anterior projection in frontal sinus fractures, and describe an alternative design and donor site of pericranial flaps in frontal sinus fractures. 2. Describe the symptoms and cause of pseudo-Brown syndrome, describe the anatomy and placement of a buttress-spanning plate in nasoorbitoethmoid fractures, and identify appropriate nasal support alternatives for nasoorbitoethmoid fractures...
May 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29651653/intraosseous-venous-malformation-of-the-zygomatico-orbital-complex-case-report-and-literature-review-with-focus-on-confusions-in-vascular-lesion-terms
#11
Zoltán Fábián, György Szabó, Cecilia Petrovan, Karin Ursula Horváth, Botond Babicsák, Kálmán Hüttl, Zsolt Németh, Sándor Bogdán
Intraosseous vascular malformations (VascM) of the facial skeleton are rare entities, raising difficulties even today in their treatment. We present a case for zygomatic intraosseous venous malformation of traumatic etiology with growth dynamics presentation and a multidisciplinary treatment approach, with intravascular embolization surgical ablation and primary reconstructruction using a titanium patient-specific implant (PSI), and a review of the literature for intraosseous vascular lesions of the facial skeleton focusing on the diagnostic syntagms used by the involved medical personnel, to shed light on the confusions over these terms...
June 2018: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29565705/zygomatic-dental-implant-induced-orbital-fracture-and-inferior-oblique-trauma
#12
Ann Q Tran, Daniela P Reyes-Capó, Nimesh A Patel, Joshua Pasol, Hilda Capó, Sara T Wester
A 51-year-old female underwent four upper zygomatic dental implants (ZI) and one upper and four lower conventional implants. Immediately postoperatively, the patient had pain and diplopia upon manual elevation of the edematous eyelid. Panoramic x-ray showed a malpositioned right upper ZI, requiring removal of the right upper ZI the following day. The patient had delayed referral to ophthalmology one month later for persistent diplopia. Computed tomography scan and magnetic resonance imaging demonstrated a right inferolateral fracture with fibrosis surrounding the inferior oblique muscle...
March 22, 2018: Orbit
https://www.readbyqxmd.com/read/29557398/immediately-loaded-zygomatic-implants-vs-conventional-dental-implants-in-augmented-atrophic-maxillae-4-months-post-loading-results-from-a-multicentre-randomised-controlled-trial
#13
RANDOMIZED CONTROLLED TRIAL
Marco Esposito, Rubén Davó, Carlos Marti-Pages, Ada Ferrer-Fuertes, Carlo Barausse, Roberto Pistilli, Daniela Rita Ippolito, Pietro Felice
PURPOSE: To compare the clinical outcome of immediately loaded cross-arch maxillary prostheses supported by zygomatic implants vs conventional implants placed in augmented bone. MATERIALS AND METHODS: A total of 71 edentulous patients with severely atrophic maxillas, who did not have sufficient bone volume to place dental implants or when it was possible to place only two implants in the front area (minimal diameter 3.5 mm and length of 8 mm) and less than 4.0 mm of bone height subantrally, were randomised according to a parallel group design...
2018: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/29503957/extraocular-muscle-damage-from-dental-implant-penetration-to-the-orbit
#14
Mark Krauthammer, Amir Shuster, Daphna Mezad-Koursh, Benjamin Shlomi, Chaim Stolovitch, Igal Leibovitch
Purpose: To demonstrate an unusual case of orbital trauma due to dental surgery complication. Observations: An elderly patient who underwent dental implantation to the zygomatic bone was hospitalized in the ophthalmology department with impaired abduction of her right eye, also evident on ocular examination. Head computed tomography demonstrated damage to the lateral rectus and to the inferior oblique muscles. Clinical assessment determined these muscles could not be repaired and reattached...
April 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29438657/biocompatibility-and-efficiency-of-biodegradable-magnesium-based-plates-and-screws-in-the-facial-fracture-model-of-beagles
#15
Byung Jun Kim, Yinglan Piao, Maierdanjiang Wufuer, Woo-Chan Son, Tae Hyun Choi
PURPOSE: A biodegradable magnesium alloy system has been developed as a substitute for conventional plates and screws made of titanium or absorbable polymer. However, previous studies were limited to small animal experiments using screws or wires. In the present study, we preliminarily evaluated the biocompatibility and effectiveness of human standard-size biodegradable magnesium-based plates and screws in facial fractures of beagles. MATERIALS AND METHODS: Fracture lines were created bilaterally in the zygomatic arches of 6 beagles...
May 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29414502/intraorbital-hemorrhage-following-a-secondary-intervention-at-integrated-zygomatic-implants-a-case-report
#16
Philippe Van Camp, Luc Vrielinck, Bert Gemels, Constantinus Politis
INTRODUCTION: Zygomatic implant placement can be the best option for restoring masticatory function of an extremely atrophic upper jaw, but the procedure is more invasive than conventional implant placement and can be associated with complications. PRESENTATION OF CASE: We report a complication that occurred during a secondary corrective surgical procedure four years after zygomatic implant placement. The patient was a 54-year-old female who had been edentulous for 25 years...
2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29394179/zygoma-quad-compared-with-2-zygomatic-implants-a-systematic-review-and-meta-analysis
#17
Samir Aboul-Hosn Centenero, Aída Lázaro, Maria Giralt-Hernando, Federico Hernández-Alfaro
PURPOSE: The aim of this study was to systematically review and compare the survival rates (SRs) of oral rehabilitations performed with 2 zygomatic implants (ZIs) combined with regular implants (RIs) versus 4 ZI. MATERIAL AND METHODS: An electronic search was performed in several databases for articles published in English between 2007 and 2015. Articles reporting human studies were included in this systematic review. RESULTS: The search yielded to a total of 417 studies, of which 6 were included in this study...
January 29, 2018: Implant Dentistry
https://www.readbyqxmd.com/read/29387309/correction-of-a-posttraumatic-orbital-deformity-using-three-dimensional-modeling-virtual-surgical-planning-with-computer-assisted-design-and-three-dimensional-printing-of-custom-implants
#18
Kristopher M Day, Paul M Phillips, Larry A Sargent
We describe a case of complex, posttraumatic skull and orbital deformities that were evaluated and treated with advanced computer technology, including virtual surgical planning, three-dimensional (3D) modeling, and printed patient custom implants (PCI) fabricated by 3D printing. A 50-year-old man presented to our craniofacial referral center 1 year after failed reduction of complex left orbital, zygomatic, and frontal bone fractures due to a motorcycle collision. The patient's chief complaint was debilitating diplopia in all fields of gaze...
March 2018: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29285335/treatment-of-severe-atrophic-maxilla-with-zygomatic-implants-a-case-series
#19
I Balan, M DI Girolamo, D Lauritano, F Carinci
Treatment of severe maxillary atrophy with implants has achieved important successes in recent years. The limit of implant insertion is related to inadequate bone quantity (i.e. height and width). Alveolar bone grafting, sinus lifting and major grafting via Le Fort I osteotomy have used in the past to restore bone volume prior of implant insertion. However successes do not always occur and a second stage surgery is necessary in most cases. Immediate loading cannot be performed in all grafted bone. In recent years a new treatment approach has been proposed by using zygomatic implants...
July 2017: Oral & Implantology
https://www.readbyqxmd.com/read/29284976/pterygoid-implant-for-atrophic-posterior-maxilla
#20
V R Balaji, R Lambodharan, D Manikandan, S Deenadayalan
Replacement of missing teeth in the posterior maxilla is always a challenge for the treating implant surgeon as the posterior maxilla has several obstacles in the form of quality, quantity, the anatomy of the maxillary sinus, and inaccessibility. To overcome these deficiencies, several surgical procedures such as sinus lift, bone augmentation, tilted implants, short implants, and zygomatic implants were tried. Since these procedures have their own limitations, pterygomaxillary region provides us an excellent place for placement of implant and rehabilitation of posterior maxilla...
November 2017: Journal of Pharmacy & Bioallied Sciences
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