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https://www.readbyqxmd.com/read/29122305/reconstruction-of-cranioplasty-using-medpor-porouspolyethylene-implant
#1
B Marlier, J-C Kleiber, M Bannwarth, E Theret, C Eap, C F Litre
INTRODUCTION: We describe our experience of cranioplasty after a calvarial defect, following an external decompressive craniectomy, with the Medpor(®) (Stryker(®)) porous polyethylene implant for cosmetic cranioplasty and reconstruction. METHODS: A retrospective chart review was performed on 23 consecutive patients who underwent cranioplasty at a single institution between January 2013 and January 2016: 9 patients after head injury and 14 patients after vascular event (ruptured aneurysm, intraprenchymal haematoma, malignant cerebrovascular accident)...
November 6, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/29109841/mandibular-reconstruction-with-lateral-tibial-bone-graft-an-excellent-option-for-oral-and-maxillofacial-surgery
#2
Ana Lucia Carpi Miceli, Livia Costa Pereira, Thiago da Silva Torres, Mônica Diuana Calasans-Maia, Rafael Seabra Louro
Autogenous bone grafts are the gold standard for reconstruction of atrophic jaws, pseudoarthroses, alveolar clefts, orthognathic surgery, mandibular discontinuity, and augmentation of sinus maxillary. Bone graft can be harvested from iliac bone, calvarium, tibial bone, rib, and intraoral bone. Proximal tibia is a common donor site with few reported problems compared with other sites. The aim of this study was to evaluate the use of proximal tibia as a donor area for maxillofacial reconstructions, focusing on quantifying the volume of cancellous graft harvested by a lateral approach and to assess the complications of this technique...
December 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29105932/bioactive-treatments-in-bone-grafts-for-implant-based-rehabilitation-systematic-review-and-meta-analysis
#3
REVIEW
Wellington Luiz de Oliveira da Rosa, Tiago Machado da Silva, Adriana Fernandes da Silva, Evandro Piva
BACKGROUND: The use of bioactive proteins, such as rhBMP-2, may improve bone regeneration in oral and maxillofacial surgery. PURPOSE: Analyze the effect of using bioactive proteins for bone regeneration in implant-based rehabilitation. MATERIALS AND METHODS: Seven databases were screened. Only clinical trials that evaluated the use of heterologous sources of bioactive proteins for bone formation prior to implant-based rehabilitation were included...
November 6, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29103446/miniscrew-assisted-multidisciplinary-orthodontic-treatment-with-surgical-mandibular-advancement-and-genioplasty-in-a-brachyfacial-class-ii-patient-with-mandibular-asymmetry
#4
Vanessa Paredes-Gallardo, Verónica García-Sanz, Carlos Bellot-Arcís
This article describes the complex dental treatment of a 43-year-old man with skeletal Class II, mandibular asymmetry, severe brachyfacial pattern, Class II Division 2, canting of the occlusal plane, and an increased curve of Spee. To achieve optimal results, we adopted a multidisciplinary approach to treatment, involving periodontics, oral surgery, orthodontics, maxillofacial surgery, and prosthetics specialists. After periodontal treatment, miniscrews were placed to correct the occlusal plane canting and the excessive curve of Spee with orthodontic treatment...
November 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29096989/the-effect-of-manufacturing-techniques-on-custom-made-titanium-cranioplasty-plates-a-pilot-study
#5
Amy V Davey
OBJECTIVE: This study investigated the effect of varying techniques on the surface characteristics of pressed titanium cranioplasty plates, commonly manufactured in laboratory practice. The aim was to highlight the variety of techniques currently used, assess these methods of manufacture and produce manufacturing recommendations. METHODS: A questionnaire identified manufacturing methods commonly used by maxillofacial prosthetists. The plate surfaces were examined using scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) spectrometry...
September 28, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29089254/biocompatibility-and-degradation-properties-of-we43-mg-alloys-with-and-without-heat-treatment-in%C3%A2-vivo-evaluation-and-comparison-in-a-cranial-bone-sheep-model
#6
Andrea Torroni, Chongchen Xiang, Lukasz Witek, Eduardo D Rodriguez, Paulo G Coelho, Nikhil Gupta
PURPOSE: Orthopedic and maxillofacial bone fractures are routinely treated by titanium internal fixation, which may be prone to exposure, infection or intolerance. Magnesium (Mg) and its alloys represent promising alternatives to produce biodegradable osteosynthesis devices, with biocompatibility and, specifically, hydrogen gas production during the degradation process, being the main drawback. Aim of this study is to test and compare biocompatibility, degradation rate and physiscochemical properties of two Mg-alloys to identify which one possesses the most suitable characteristics to be used as resorbable hardware in load-bearing fracture sites...
September 28, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29079267/dental-implants-the-last-100%C3%A2-years
#7
Michael S Block
The present article on the history of dental implants spans beyond the past 100 years of the American Association of Oral and Maxillofacial Surgeons. It was not until the materials and methods became less traumatic to the bone that implants could become firmly attached to the surrounding bone. This phenomenon is now used to replace single and multiple teeth and restore the patient to function and well-being. Many of the methods used to increase denture function are still used with modifications to augment the environment for an implant...
October 13, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29077686/accessory-mental-foramen-and-maxillofacial-surgery
#8
Amin Rahpeyma, Saeedeh Khajehahmadi
Accessory mental foramens should be considered in surgical procedures performed in mandibular body and symphysis. Location and content of these foramina has significant impact on the result of surgery.Lip numbness is the catastrophic result if these foramina are violated while their content is nerves that carry sensory inputs from lower lip. Examples of interferences with dental implant, orthognathic, and periapical surgeries are presented and it is discussed in which conditions they complicate oral surgical procedures...
October 26, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29072210/evaluation-of-effect-of-laser-etching-on-shear-bond-strength-between-maxillofacial-silicone-and-acrylic-resin-subjected-to-accelerated-aging-process
#9
Antonette Rhea, S C Ahila, B Muthu Kumar
OBJECTIVE: Maxillofacial prosthesis are supported by implants, require a retentive matrix to retain the suprastructure. The retentive matrix is made up of acrylic resin to which the silicone prostheses are anchored by micro-mechanical bond. The delamination of silicone away from the retentive matrix is a persisting problem in implant-supported maxillofacial prosthesis. AIM: This study aimed to evaluate the effect of laser etching on the shear bond strength (BS) between acrylic resin and maxillofacial silicone, after 24 h of fabrication and after 200 h of accelerated aging...
September 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29071028/successful-use-of-lower-level-laser-therapy-in-the-treatment-of-medication-related-osteonecrosis-of-the-jaw
#10
Gustavo Antonio Correa Momesso, Fábio Roberto de Souza Batista, Cecília Alves de Sousa, Valthierre Nunes de Lima, Tárik Ocon Braga Polo, Jaqueline Suemi Hassumi, Idelmo Rangel Garcia Júnior, Leonardo Perez Faverani
Case Presentation: This study aimed to report a case of medication related osteonecrosis of the jaw (MRONJ) of a 65-year-old female patient referred to the Oral and Maxillofacial Surgery team from Araçatuba Dental School, complaining about mobility of a previously dental implant placed on the posterior maxillary region. Clinical examination revealed an extensive necrosis area around the implant region. The patient reported bisphosphonate therapy with sodium alendronate for prevention of osteoporosis 5 years ago...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29044894/immediate-implant-placement-and-provisionalization-following-tumor-resective-surgery-in-the-midfacial-region-a-case-series
#11
Nelson Fernandes, Jacobus van den Heever, Leanne Sykes
Surgical and prosthodontic restoration of the midfacial region following tumor resection has always posed a considerable challenge, as this area serves crucial functional and esthetic roles. Being diagnosed and subsequently treated for facial tumors can have an immense psychosocial impact on a patient, as the resulting defects are often disfiguring, and lead to an inability to masticate, swallow, and speak clearly. Provision of an immediate facial and dental prosthesis at the time of surgery can limit these side effects and help reduce mental duress on these patients and their families, as well as aid in the process of rehabilitation...
October 18, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29043245/intentional-partial-odontectomy-a-long-term-follow-up-study
#12
Hyun-Suk Kim, Pil-Young Yun, Young-Kyun Kim
BACKGROUND: The surgical extraction of the third molar is the most frequently encountered procedure in oral and maxillofacial surgery and is related with a variety of complications. This study examined the efficacy of intentional partial odontectomy (IPO) in the third molars which have no periapical lesions and are located near important anatomical structures such as inferior alveolar nerve. METHODS: Seven patients (four males, three females, 39.1 ± 11.6 years), who received IPO to reduce the risk of inferior alveolar nerve injury (IANI), were followed long-term...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28987224/controversies-in-traditional-oral-and-maxillofacial-reconstruction
#13
REVIEW
John S Vorrasi, Antonia Kolokythas
Traditional reconstruction of the head and neck and significantly evolved over the last 20 to 30 years with advances in microvascular surgery, biologic materials such as bone morphogenic protein, and dental implant predictability. Earlier and more definitive reconstruction can now be achieved with combining therapies, allowing patients immediate restoration of function and improved cosmetics. Antiresorptive medications, such as Denosumab and bisphosphonates, have complicated bony reconstruction treatments with altered biology and less-predictable results...
November 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/28979575/implantology-and-periodontal-disease-the-panacea-to-problem-solving
#14
Giovanni Matarese, Luca Ramaglia, Luca Fiorillo, Gabriele Cervino, Floriana Lauritano, Gaetano Isola
INTRODUCTION: The specialty of periodontology has changed dramatically in recent years. With the long-standing goal of retaining teeth in a functional and esthetical state, the periodontology has developed a high level of expertise in the regeneration of bone and connective tissues that support the teeth. However, periodontists have also joined maxillofacial surgeons as the primary providers of implant surgery. METHODS: The tremendous innovations of periodontists induced also by the marketplace resulted in predictable periodontal treatment outcomes for most patients by the implants led to a dramatically different marketplace in which many patients with periodontitis can be treated by the implants rather than the traditional periodontal treatment...
2017: Open Dentistry Journal
https://www.readbyqxmd.com/read/28941303/effect-of-connective-tissue-grafting-on-peri-implant-tissue-in-single-immediate-implant-sites-a-rct
#15
Elise G Zuiderveld, Henny J A Meijer, Laurens den Hartog, Arjan Vissink, Gerry M Raghoebar
AIM: To assess the effect of connective tissue grafting on the mid-buccal mucosal level (MBML) of immediately placed and provisionalized single implants in the maxillofacial esthetic zone. MATERIALS AND METHODS: Sixty patients with a failing tooth were provided with an immediately placed and provisionalized implant. During implant placement, patients randomly received either a connective tissue graft from the maxillary tuberosity (n=30, test group) or no graft (n=30, control group)...
September 23, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28936047/refabrication-of-an-implant-retained-auricular-prosthesis-using-clip-attachment-pickup-technique
#16
Sanketh Kethireddy, Keerthi Kethireddy
Increased patient acceptance and widespread use have led to a greater demand for refabrication of existing maxillofacial prostheses exhibiting wear and tear. Refabricating an osseointegrated implant-retained silicone auricular prosthesis on the existing Hader bar is a challenging task if it is performed without removing it. Therefore, an attachment level impression method is utilized for the refabrication of a new prosthesis on an existing Hader bar framework without removing it from the patient's defect. This case report discusses a modification of the Mahidol University technique...
July 2017: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/28929054/prosthetic-rehabilitation-of-a-geriatric-patient-with-squamous-cell-carcinoma-of-the-buccal-mucosa-a-report-of-clinical-challenges
#17
Raghavendra Adaki, Sarvesh Raikar, Kamal Shigli, Sivaranjani Gali
OBJECTIVE: This article aims to highlight the rehabilitation of a geriatric patient with an orofacial cheek defect by an extraoral silicone prosthesis. METHODOLOGY: Structured extra- and intra-oral examination of tissues coupled with a justified choice of impression materials, techniques, and prosthetic rehabilitation with a high-temperature vulcanizing silicone was done. RESULTS: The presence of compressible tissues, static appearance of the prosthesis during patient's facial movements, variability in complexion of the skin around the defect, and manipulating heat-vulcanized silicone were the challenges faced during clinical procedures...
April 2017: International Journal of Pharmaceutical Investigation
https://www.readbyqxmd.com/read/28916325/what-is-the-incidence-of-implant-malpositioning-and-revision-surgery-after-orbital-repair
#18
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
#19
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
#20
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
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