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maxillofacial implants

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https://www.readbyqxmd.com/read/29330656/3d-imaging-3d-printing-and-3d-virtual-planning-in-endodontics
#1
REVIEW
Pratik Shah, B S Chong
The adoption and adaptation of recent advances in digital technology, such as three-dimensional (3D) printed objects and haptic simulators, in dentistry have influenced teaching and/or management of cases involving implant, craniofacial, maxillofacial, orthognathic and periodontal treatments. 3D printed models and guides may help operators plan and tackle complicated non-surgical and surgical endodontic treatment and may aid skill acquisition. Haptic simulators may assist in the development of competency in endodontic procedures through the acquisition of psycho-motor skills...
January 12, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29303409/clinical-evaluation-of-a-new-synthetic-resorbable-dental-membrane-a-case-series-study
#2
Hélène Martin Thomé, David Bourdin, Nicolas Strube, Afchine Saffarzadeh, Jean-Francois Morlock, Guillaume Campard, Charles Evanno, Alain Hoornaert, Pierre Layrolle
For the regeneration of small osseous defects, dental membranes are commonly used in oral and maxillofacial surgery. A new synthetic resorbable membrane has recently demonstrated its biocompatibility and bone regeneration capacity in preclinical studies. This membrane is made of poly-D,L-lactic/glycolic acid 85/15 (PLGA), has a bi-layered structure with a dense film to prevent gingival epithelial cell invasion and a micro-fibrous layer to support osteogenic cells and bone healing. This membrane completely degrades by hydrolysis in 4 to 6 months without signs of inflammation...
January 5, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29285330/prosthetic-management-of-patients-with-oro-maxillo-facial-defects-a-long-term-follow-up-retrospective-study
#3
G Gastaldi, L Palumbo, C Moreschi, E F Gherlone, P Capparé
Introduction: The aim of this study is to determine the outcome of maxillofacial prosthetic rehabilitation after oncological resections, including both intra- and extra-oral prosthetic devices. Methods: In this study were included 72 patients, who have undergone an intra or extra-oral maxillofacial prosthetic rehabilitation after an oncologic resection. Tumors on the head and neck were analyzed and the defects of these resections have been divided in two different groups: intra and extra-oral defects...
July 2017: Oral & Implantology
https://www.readbyqxmd.com/read/29284979/evaluation-of-the-accuracy-of-cone-beam-computed-tomography-for-immediate-implant-placement-a-case-report
#4
B Saravanan, P Jayavelu, R Riaz, A R Tariqsalam
Diagnostic imaging acts as a distinctive method in analyzing and drawing in the appropriate treatment protocol for any procedure. Pertaining to immediate implant placement, determining the bone width and height plays a vital role in the success of the implant therapy. This visualization of the measurements done preoperatively will enhance the treatment by reducing the overall time span of the procedure. Currently, cone beam computed tomography (CBCT) plays a significant role in the preoperative determination of the measurements of the tooth and the bone...
November 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29279828/rare-finding-of-eustachian-tube-calcifications-with-cone-beam-computed-tomography
#5
Ali Z Syed, Anna Hawkins, Leela Subashini Alluri, Buthainah Jadallah, Kiran Shahid, Michael Landers, Hussein M Assaf
Soft tissue calcification is a pathological condition in which calcium and phosphate salts are deposited in the soft tissue organic matrix. This study presents an unusual calcification noted in the cartilaginous portion of the Eustachian tube. A 67-year-old woman presented for dental treatment, specifically for implant placement, and cone-beam computed tomography (CBCT) was performed. The CBCT scan was reviewed by a board-certified oral and maxillofacial radiologist and revealed incidental findings of 2 distinct calcifications in the cartilaginous portion of the Eustachian tube...
December 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/29258851/a-new-synthetic-granular-calcium-phosphate-compound-induces-new-bone-in-a-sinus-lift-rabbit-model
#6
Trbakovic Amela, Hedenqvist Patricia, Mellgren Torbjörn, Ley Cecilia, Hilborn Jöns, Ossipov Dmitri, Ekman Stina, Johansson B Carina, Waern-Jensen Marianne, Thor Andreas
OBJECTIVES: The aim of this study was to investigate if a synthetic granular calcium phosphate compound (CPC) and a composite bisphosphonate-linked hyaluronic acid-calcium phosphate hydrogel (HABP·CaP) induced similar or more amount of bone as bovine mineral in a modified sinus lift rabbit model. MATERIAL AND METHODS: Eighteen adult male New Zeeland White rabbits, received randomly one of the two test materials on a random side of the face, and bovine mineral as control on the contralateral side...
December 16, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29249886/the-use-of-cone-beam-computed-tomography-and-three-dimensional-printing-technology-in-the-restoration-of-a-maxillectomy-patient-using-a-dental-implant-retained-obturator
#7
George Michelinakis
This case report presents an alternative method for fabricating an obturator for patients that develop xerostomia and mild trismus following radiation to the Head and Neck region. Multiple initial impression stages are avoided leading to less irritation to soft tissues and less discomfort to the patient. A 69-year-old male patient was referred to our dental practice by the Maxillofacial Surgery Department of the local General Hospital. The patient had undergone a right maxillectomy for removal of a Squamous Cell Carcinoma 2 weeks prior...
October 2017: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/29209690/prosthetic-rehabilitation-involving-the-use-of-implants-following-a-fibula-free-flap-reconstruction-in-the-treatment-of-osteosarcoma-of-the-maxilla-a-case-report
#8
E Brauner, A Quarato, F De Angelis, G Pompa, S Jamshir, V Valentini, S Di Carlo
INTRODUCTION: Osteosarcoma is an aggressive primary bone tumor composed of connective tissue cells directly producing osteoid and bone. Prosthetic rehabilitations in post-oncological patients after bone reconstruction are not substantially different than those of patients affected by severe atrophy of upper or lower jaw after bone reconstruction. The treatment for patients with a malignant neoplasia of the oral cavity requires multidisciplinary approach by a team of different specialists that follow the patient through the phases of diagnosis, therapy and oral rehabilitation...
November 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/29192548/in-vivo-study-on-biodegradable-magnesium-alloys-bone-healing-around-we43-screws
#9
Jitka Levorova, Jaroslava Duskova, Milan Drahos, Radka Vrbova, D Vojtech, Jiri Kubasek, Martin Bartos, Lenka Dugova, Dan Ulmann, Rene Foltan
Introduction A standard osteosynthetic material for maxillofacial skeleton is titanium and its alloys. The convenience of degradable material is avoiding of second surgery in cases, where removal of the material is necessary. Magnesium biodegradable alloys have similar mechanic properties as cortical bone - reasonable corrosion and sufficient biologic properties. They might be used in facial skeleton fixation. Materials and methods The study included a total of 16 rabbits, and they were randomly divided into two groups...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/29165324/in-vivo-evaluation-of-modified-silk-fibroin-scaffolds-with-a-mimicked-microenvironment-of-fibronectin-decellularized-pulp-tissue-for-maxillofacial-surgery
#10
Thanh H Thai, Thongchai Nuntanaranont, Suttatip Kamolmatyakul, Jirut Meesane
This study aimed to carry out in vivo testing of the formation of new bone by modified silk fibroin scaffolds with a mimicked microenvironment of fibronectin/decellularized pulp in bone defects. Silk fibroin scaffolds were fabricated into three-dimensional scaffolds before being coated with fibronectin/decellularized pulp. The coated scaffolds were implanted into rabbits. Twenty-four bicortical calvarial defects in 12 rabbits were divided randomly into two groups: non-coated and coated silk fibroin scaffolds...
November 22, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29122305/reconstruction-of-cranioplasty-using-medpor-porouspolyethylene-implant
#11
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)...
December 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/29109841/mandibular-reconstruction-with-lateral-tibial-bone-graft-an-excellent-option-for-oral-and-maxillofacial-surgery
#12
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
#13
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
#14
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
#15
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...
December 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
#16
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
#17
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
#18
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
#19
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
#20
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
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