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maxillofacial implants

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https://www.readbyqxmd.com/read/28916325/what-is-the-incidence-of-implant-malpositioning-and-revision-surgery-after-orbital-repair
#1
Fabian Schlittler, Andre Schmidli, Franca Wagner, Chantal Michel, Matthias Mottini, Olivier Lieger
PURPOSE: Postoperative radiographic examinations are the gold standard in maxillofacial surgery, except in orbital reconstruction. Therefore, the purpose of this study was to estimate the frequency of implant malposition and revision operation after orbital repair. MATERIALS AND METHODS: This retrospective cohort study was conducted in a level I trauma center at the University Hospital in Bern, Switzerland. To assess the incidence of malpositioning, a qualitative analysis of postoperative computed tomography scans, as well as comparative volumetric measurements of the orbits, was conducted...
August 23, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28915498/tantalum-coated-pedicle-screws-enhance-implant-integration
#2
Liang-Yu Shi, An Wang, Fa-Zhi Zang, Jian-Xi Wang, Xian-Wei Pan, Hua-Jiang Chen
Because titanium alloy (Ti) has the natural advantage of a low elastic modulus, it has become the most commonly used material for the manufacturing of pedicle screws. However, its poor shear strength and osteogenic ability are undesirable properties. The superior osteoinductivity demonstrated by tantalum (Ta) in oral and maxillofacial surgery and joint surgery leads us to assume that the tantalum-coated pedicle screws may have better osteogenic properties and bone anchoring strength. To verify this hypothesis, MC3T3-E1 cells and human mesenchymal stem cells (hBMSCs) were seeded on the surface of Ta and Ti disks to compare the effects of two different metals on cell adhesion, proliferation, and differentiation...
September 7, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28858277/-bone-anchored-auricular-prosthesis-for-patients-with-grade-iii-microtia
#3
T Z Chkadua, S V Abramyan, I I Sukharskiy, A R Arsenidze, T D Cholokava
The aim of the study was to assess the effectivity of auricular prosthesis on intraosseous implants in patient with grade III microtia. The study included 7 patients (5 males and 2 females) aged 18 to 45 years with hemifacial microsomia and grade III microtia operated in Central Research Institute of Dentistry and Maxillofacial Surgery in 2013-2016. Number and position of intraosseous implants was determined by reverse planning based on CT representing hard and soft facial structures. Patients were followed-up for 6-36 months...
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/28853144/prosthodontic-management-of-maxillofacial-cases-a-case-series
#4
James Dudley, Fiza Mughal, Elena Hotinski, Melati Mahmud
Maxillo-facial prosthetics is an important and recognised sub-discipline of prosthodontics that forms a key component of postgraduate training programs. General dentists have a role to play in the management of maxillo-facial defect patients even though treatment usually requires a multidisciplinary approach in an institutional environment. Maxillo-facial prosthetic cases frequently present with complex histories but simple patient goals. The conservatively managed implant-retained auricular prosthesis, speech aid prosthesis and orbital prosthesis cases described in this report were completed in a postgraduate clinical residency program and highlight the intrinsic complexities, challenges and ultimately satisfaction related to cases of this nature...
August 29, 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28815251/-morphometric-analysis-of-maxillofacial-bone-in-48-patients-with-ectodermal-dysplasia
#5
Hao-Wei Wang, Feng Wang, Wei Huang, Wen-Jie Zhou, Yue-Ping Wang, Yi-Qun Wu
PURPOSE: The study was performed to analyze the maxillofacial morphology of 48 patients with ectodermal dysplasia (ED) and to provide some reference for implant treatment of ED patients. METHODS: The study collected the clinical data and lateral cephalometric radiographs of 48 patients with ED treated between June 2013 and October 2016. The patients were grouped as follows: group 1, 23 patients, at least with two kinds of ectodermal disorder, besides hypodontia; group 2, 25 patients, only with one kind of ectodermal disorder, besides hypodontia...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28791277/the-rate-and-stability-of-mandibular-block-bone-graft-in-recent-5%C3%A2-years
#6
Jong-Cheol Park, Yun-Ho Kim, Hong-Seok Choi, Jong-Shik Oh, Sang-Hun Shin, Yong-Deok Kim
BACKGROUND: The purposes of the present study were to compare implant stabilities of mandibular block bone graft and bovine bone graft and to evaluate influencing factors for implant stability in mandibular block bone (MBB) graft. METHODS: This retrospective study investigated 1224 cases and 389 patients treated by one surgeon in the Department of Oral and Maxillofacial Surgery of Pusan National University Dental Hospital (Yangsan, Korea) between January 2010 and December 2014...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28747263/the-validity-and-reliability-of-computed-tomography-orbital-volume-measurements
#7
Silviu C Diaconu, David Dreizin, Mehmet Uluer, Corey Mossop, Michael P Grant, Arthur J Nam
PURPOSE: Orbital volume calculations allow surgeons to design patient-specific implants to correct volume deficits. It is estimated that changes as small as 1 ml in orbital volume can lead to enophthalmos. Awareness of the limitations of orbital volume computed tomography (CT) measurements is critical to differentiate between true volume differences and measurement error. The aim of this study is to analyze the validity and reliability of CT orbital volume measurements. MATERIALS AND METHODS: A total of 12 cadaver orbits were scanned using a standard CT maxillofacial protocol...
September 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28740970/anterior-mandibular-rehabilitation-causing-chronic-obstructive-sialadenitis-a-series-of-sialo-cbct-cases-and-literature-review
#8
Naama Keshet, Amir Laviv, Doron J Aframian, Chen Nadler
OBJECTIVE: The aim of this study was to assess and present, using sialo-cone beam computed tomography (sialo-CBCT) examination, cases of submandibular gland (SM) chronic obstructive sialadenitis (COS) caused by dental rehabilitation. DATA SOURCES: Clinical and radiographic data of all patients referred for SM sialo-CBCT imaging in the Oral and Maxillofacial Imaging Unit with recurrent SM swelling between January 2012 and July 2015 were reviewed. Cases with suggested iatrogenic cause were selected and described...
July 20, 2017: Quintessence International
https://www.readbyqxmd.com/read/28736923/applications-of-additive-manufacturing-in-dentistry-a-review
#9
REVIEW
Aishwarya Bhargav, Vijayavenkatraman Sanjairaj, Vinicius Rosa, Lu Wen Feng, Jerry Fuh Yh
Additive manufacturing (AM) or 3D printing has been hailed as the third industrial revolution as it has caused a paradigm shift in the way objects have been manufactured. Conventionally, converting a raw material to a fully finished and assembled, usable product comprises several steps which can be eliminated by using this process as functional products can be created directly from the raw material at a fraction of the time originally consumed. Thus, AM has found applications in several sectors including automotive, aerospace, printed electronics, and healthcare...
July 24, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28732777/how-useful-is-3d-printing-in-maxillofacial-surgery
#10
A Louvrier, P Marty, A Barrabé, E Euvrard, B Chatelain, E Weber, C Meyer
INTRODUCTION: 3D printing seems to have more and more applications in maxillofacial surgery (MFS), particularly since the release on the market of general use 3D printers several years ago. The aim of our study was to answer 4 questions: 1. Who uses 3D printing in MFS and is it routine or not? 2. What are the main clinical indications for 3D printing in MFS and what are the kinds of objects that are used? 3. Are these objects printed by an official medical device (MD) manufacturer or made directly within the department or the lab? 4...
July 18, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28717295/animal-inflicted-maxillofacial-injuries-treatment-modalities-and-our-experience
#11
Anjani Kumar Yadav, Mehul Rajesh Jaisani, Leeza Pradhan, Ashok Dongol, Arpita Singh, Pradeep Acharya, Alok Sagtani
INTRODUCTION: Animal inflicted injuries to the face and neck are becoming much more common as people lavish affection on pets. Injuries caused by animal attacks to the face can cause complex injuries to soft and hard tissues, presented as perforations, lacerations, crushes, avulsion or fractures. An uncountable number of bacteria and virus can be found in such injuries, with a potential pathological effect to humans, regarding infections. Although the infection rate is low due to excellent blood supply to face, the injuries have disfiguring effect with possible psychological repercussion to the patients...
September 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28713511/accuracy-of-densitometry-of-two-cone-beam-computed-tomography-equipment-in-comparison-with-computed-tomography
#12
Sina Haghanifar, Sajad Yousefi, Ehsan Moudi, Farida Abesi, Ali Bijani, Ali Akbar Moghadamnia, Mehrdad Nabahati
BACKGROUND: The use of oral implants has been growing, and cone beam computerized tomography (CBCT) has become the method of choice for oral and maxillofacial radiology. OBJECTIVE: To assess the accuracy of bone densitometry in two different CBCT devices in comparison with MDCT (multi-detector CT). METHODS: Different concentrations of urografin, including 2.5%, 5%, 7.5%, 10%, 12.5%, were prepared, and the Hounsfield unit of these solution was measured by two CBCT devices (SORDEX CRANEX 3D and NEWTOM 5G) and one spiral CT device (SOMATOM SENSATION)...
May 2017: Electronic Physician
https://www.readbyqxmd.com/read/28709822/occurrence-of-trigeminocardiac-reflex-during-dental-implant-surgery-an-observational-prospective-study
#13
James I-Sheng Huang, Hui-Chieh Yu, Yu-Chao Chang
BACKGROUND/PURPOSE: Trigeminocardiac reflex (TCR) is a clinical phenomenon that manifests as s sudden onset of hemodynamic perturbations. TCR has been reported in cranio-maxillofacial surgery resulting in severe medical risks. Monitoring the hemodynamic changes during cranio-maxillofacial surgery can provide important information to ensure the continuous evaluation of patient's physical conditions. This prospective observational study was conducted to determine the hemodynamic alterations related to the possibly of occurrence of TCR in patients during dental implant surgery...
July 11, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28708906/effectiveness-of-periapical-radiography-versus-cone-beam-computed-tomography-with-different-kilovoltage-settings-in-the-detection-of-chemically-created-peri-implant-bone-defects-an-in-vitro-study
#14
Lucas Rodrigues Pinheiro, William C Scarfe, Marcelo Augusto de Oliveira Sales, Bruno Felipe Gaia, Arthur Rodriguez Gonzalez Cortes, Marcelo Gusmão Paraiso Cavalcanti
PURPOSE: To determine the effectiveness of cone beam computed tomography (CBCT) images obtained with different kilovoltage settings compared with intraoral periapical photostimulable storage phosphor (PSP) plate images in the detection of chemically created peri-implant defects utilizing a bovine rib bone model in vitro. MATERIALS AND METHODS: After placing 80 implants in bovine ribs, peri-implant circumferential bone defects of different sizes were created with 70% perchloric acid...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708903/glossary-of-oral-and-maxillofacial-implants
#15
William R Laney
No abstract available.
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28687468/two-different-techniques-of-manufacturing-tmj-replacements-a-technical-report
#16
Marcin Kozakiewicz, Tomasz Wach, Piotr Szymor, Rafał Zieliński
INTRODUCTION: Presently, during the surgical treatment of the patients in maxillofacial surgery, one can use various medical implants. Moreover custom made implants are being used. Replacements may be fitted to the structure and shape of the human skull owing to CAD/CAM (custom aided design/manufacture) called customized implants. This study was aimed to report for the first time clinical material from which custom implants, using two different techniques, were manufactured to reconstruct the temporomandibular joint (TMJ)...
September 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28664712/comparative-study-on-usefulness-of-gentamycin-containing-collagen-implants-in-the-treatment-of-patients-with-osteitis-and-osteomyelitis-of-the-craniofacial-skeleton
#17
COMPARATIVE STUDY
Paweł J Zawadzki, Konrad Perkowski, Michał Kotlarski, Anna Pietruczuk-Padzik, Lidia Chomicz
<b>Introduction and objective.</b> A reduction in incidences of peri-surgical complications due to infections is achieved by antibiotic prophylaxis The objective of the study was to assess the usefulness of gentamycin-containing collagen implants (GCCI) in the treatment of patients with osteitis and osteomyelitis of the craniofacial skeleton. <b>Materials and method.</b> The retrospective study included 103 patients with osteitis and osteomyelitis. 54 patients were treated intra-operatively with GCCI (Garamycin, EusaPharma, Europe)...
May 11, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28652733/in-vitro-studies-of-nanosilver-doped-titanium-implants-for-oral-and-maxillofacial-surgery
#18
Rafał Pokrowiecki, Tomasz Zaręba, Barbara Szaraniec, Krzysztof Pałka, Agnieszka Mielczarek, Elżbieta Menaszek, Stefan Tyski
The addition of an antibacterial agent to dental implants may provide the opportunity to decrease the percentage of implant failures due to peri-implantitis. For this purpose, in this study, the potential efficacy of nanosilver-doped titanium biomaterials was determined. Titanium disks were incorporated with silver nanoparticles over different time periods by Tollens reaction, which is considered to be an eco-friendly, cheap, and easy-to-perform method. The surface roughness, wettability, and silver release profile of each disc were measured...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28647227/in-vivo-cellular-reactions-to-different-biomaterials-physiological-and-pathological-aspects-and-their-consequences
#19
REVIEW
Sarah Al-Maawi, Anna Orlowska, Robert Sader, C James Kirkpatrick, Shahram Ghanaati
Biomaterials are widely used in guided bone regeneration (GBR) and guided tissue regeneration (GTR). After application, there is an interaction between the host immune system and the implanted biomaterial, leading to a biomaterial-specific cellular reaction. The present review focuses on cellular reactions to numerous biomaterials in vivo with consideration of different implantation models and microenvironments in different species, such as subcutaneous implantation in mice and rats, a muscle model in goats and a femur model in rabbits...
June 21, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28642562/what-is-the-methodological-quality-of-published-dental-implant-guidelines
#20
Mark-Steven Howe
Data sourcesSix implant dentistry journals with impact factors (2014) assigned by Journal Citation Reports (Clinical Oral Implants Research, Clinical Implant Dentistry and Related Research, European Journal of Oral Implants, The International Journal of Oral and Maxillofacial Implants, Journal of Oral Implantology, and Implant Dentistry) and the Medline database.Study selectionTwo reviewers independently selected guidelines published between May 2009 and February 2016.Data evaluationFollowing training four reviewers independently applied the Agree II tool (http://www...
June 23, 2017: Evidence-based Dentistry
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