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Endosseous implant

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https://www.readbyqxmd.com/read/28523641/sandwich-bone-graft-for-vertical-augmentation-of-the-posterior-maxillary-region-a-case-report-with-9-year-follow-up
#1
Kenko Tanaka, Irena Sailer, Yoshihiro Kataoka, Shinnosuke Nogami, Tetsu Takahashi
The loss of teeth followed by bone resorption often lead to defects in the alveolar ridge, making installation of dental implants difficult. Correction of such bone defects, especially lack of height of the ridge, is a difficult problem for all dental surgeons. This report describes the outcome of treatment after alveolar ridge augmentation in the atrophic posterior maxillary region via segmental sandwich osteotomy combined with placement of an interpositional autograft prior to placement of endosseous implants...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28499302/-virtual-planning-of-prosthetic-treatment-of-the-orbit
#2
Johannes A Veit, Julia Thierauf, Kornelius Egner, Severin Wiggenhauser, Daniel Friedrich, Jens Greve, Patrick J Schuler, Thomas K Hoffmann, Alexander Schramm
Optimal positioning of bone-anchored implants in the treatment of patients with orbital prosthesis is challenging. The definition of implant axis as well as the positioning of the implants is important to prevent failures in prosthetic rehabilitation in these patients. We performed virtual planning of enossal implants at a base of a standard fan beam CT scan using the software CoDiagnostiX™ (DentalWings, Montréal, Canada). By 3D-printing a surgical guide for drilling and implant insertion was manufactured (Med-610™, Stratasys, Rehovot, Israel)...
May 12, 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28494045/survival-analysis-of-orbital-implants-and-potential-influencing-factors-a-retrospective-long-term-study
#3
Sabine Maria Toso, Kerstin Menzel, Jan-Dirk Raguse, Susanne Nahles
PURPOSE: Application of endosseous implants in prosthetic orbital reconstruction seems to be very successful, but few reports have evaluated cumulative survival rates of orbital implants over a long period. The aim of this study was to analyze long-term survival rates and potential influencing factors of orbital implants. MATERIALS AND METHODS: A retrospective evaluation of patients treated with extraoral screw implants for retaining orbital prostheses from 1991 to 2014 was performed...
May 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28494036/epidemiology-of-implant-mortality-disparity-among-intraoral-positions-and-prosthesis-types
#4
Yong-Geun Choi, Steven E Eckert, Kyung Lhi Kang, Sang-Wan Shin, Young-Kyun Kim
PURPOSE: To examine the disparity of single-crown implant failure with a similar loss of the splinted prosthesis in differing anatomical locations while controlling for other demographic and clinical variables that may confound the relationship between prosthesis types and implant loss. MATERIALS AND METHODS: A multicenter retrospective cohort study was designed to include patients treated with dental implants from 2003 to 2014. The variables included age, sex, systemic disease, bone graft, implant placement date, position of dental implant, length of dental implant, diameter of dental implant, loading time, type of prosthesis, type of opposing occlusion, latest check date, and survival or loss of the dental implant...
May 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28473930/full-mouth-reconstruction-of-a-skeletal-class-ii-division-1-patient-with-adenoid-cystic-carcinoma-using-an-interim-immediate-obturator-and-a-definitive-obturator
#5
Mehran Bahrami, Seyed Mehran Falahchai
A 61-year-old female patient with adenoid cystic carcinoma (ACC) of the right maxilla and Angle class II division 1 malocclusion had received a subtotal maxillectomy in right side and used a conventional clasp-retained obturator. After implants placement, a maxillary interim immediate obturator (IIO) and then a definitive obturator using six endosseous implants were fabricated. During one-year follow-up, the patient was completely satisfied. Ideally, after implants placement in edentulous patients suffering from hemimaxillectomy, an implant-supported obturator (ISO) is designed in order to prevent nasal reflux and to improve speech and swallowing...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28403102/mandibular-regeneration-after-immediate-load-dental-implant-in-a-periodontitis-patient-a-clinical-and-ultrastructural-case-report
#6
Maurizio Catinari, Manuel Scimeca, Massimo Amorosino, Mario Marini, Elena Bonanno, Virginia Tancredi
RATIONALE: In this case study, we characterized from radiographic, morphological and elemental point of view the mandibular reconstruction that occur in patients affects by periodontitis after application of endosseous titanium implants. In particular, we verified that the bone load applied by titanium implant was able to induce the mandibular osteogenic reconstruction. PATIENT CONCERN: A 57-year-old female active smoker with no contraindications for dental implants and 3 unstable dental prostheses, underwent open surgery for the application of endosseous titanium implants (BANP IMPLANT S...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28402346/tissue-engineering-therapy-for-atrophic-maxilla-using-minimally-manipulated-cd90-and-cd105-bone-marrow-stem-cells-a-case-report
#7
Erick Valdivia, Gerardo Mendoza-Azpur, Jhon Pando, Heydi Cornejo, Antonio Carrasco, Myron Nevins, David Kim
Bone deficiencies in the jaws of edentulous patients limit the possibility of successful placement and osseointegration of endosseous implants. Bone resorption is defined as a vertical and horizontal loss of quality and quantity in the residual bone ridges; lack of bone structure requires bone grafting procedures to enable implant placement and to improve the function, predictability, and longevity of implants. The objective of this case study was to demonstrate the feasibility of a novel cell therapy treatment for localized jaw bone defects with tissue repair cells composed of a mixture of bone marrow-derived cells, including CD90+ mesenchymal stem cells and CD105+ monocytes/macrophages, and xenograft blocks, in what would be a safe and efficacious approach to the regeneration of localized craniofacial bone defects...
May 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28400159/nanotubular-topography-enhances-the-bioactivity-of-titanium-implants
#8
Jingyan Huang, Xinchun Zhang, Wangxiang Yan, Zhipei Chen, Xintao Shuai, Anxun Wang, Yan Wang
Surface modification on titanium implants plays an important role in promoting mesenchymal stem cell (MSC) response to enhance osseointegration persistently. In this study, nano-scale TiO2 nanotube topography (TNT), micro-scale sand blasted-acid etched topography (SLA), and hybrid sand blasted-acid etched/nanotube topography (SLA/TNT) were fabricated on the surfaces of titanium implants. Although the initial cell adherence at 60 min among TNT, SLA and TNT/SLA was not different, SLA and SLA/TNT presented to be rougher and suppressed the proliferation of MSC...
April 8, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28393825/a-contemporary-approach-for-treatment-planning-of-horizontally-resorbed-alveolar-ridge-ridge-split-technique-with-simultaneous-implant-placement-using-platelet-rich-fibrin-membrane-application-in-mandibular-anterior-region
#9
Prathahini S Parthiban, R Vijaya Lakshmi, Jaideep Mahendra, K Sreekumar, Ambalavanan Namasivayam
Treatment of edentulous sites with horizontal atrophy represents a clinical situation in which the positioning of endosseous implants might be complex or sometimes impossible without a staged regenerative approach. This case report presents management of horizontally deficient mandibular anterior ridge with a contemporary approach to treatment planning and application of platelet-rich fibrin membrane for ridge split technique and simultaneous implant placement. Implants in anterior mandibular area are considered to be most predictable, stable, with high success rate and patients' satisfaction with implant esthetics...
January 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28349251/the-effect-of-magnesium-on-early-osseointegration-in-osteoporotic-bone-a-histological-and-gene-expression-investigation
#10
S Galli, M Stocchero, M Andersson, J Karlsson, W He, T Lilin, A Wennerberg, R Jimbo
Magnesium has a key role in osteoporosis and could enhance implant osseointegration in osteoporotic patients. Titanium implants impregnated with Mg ions were installed in the tibia of ovariectomized rats. The release of Mg induced a significant increase of bone formation and the expression of anabolic markers in the peri-implant bone. INTRODUCTION: The success of endosseous implants is highly predictable in patients possessing normal bone status, but it may be impaired in patients with osteoporosis...
March 27, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28349056/maxillary-sinus-augmentation-with-decellularized-bovine-compact-particles-a-radiological-clinical-and-histologic-report-of-4-cases
#11
Antonio Scarano
Background. One of the most problematic regions for endosseous implants is the posterior maxilla, not only having poor bone density, but also lacking adequate vertical height as a result of sinus pneumatization. The purpose of the present study was a radiologic, histological, and histomorphometrical evaluation, in humans, of specimens retrieved from sinuses augmented with decellularized bovine compact particles, after a healing period of 6 months. Methods. Four patients, with atrophic resorbed maxillas, underwent a sinus lift augmentation with decellularized bovine compact bone from bovine femur...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28327417/appositional-bone-graft-tunneled-technical-note
#12
Roberto Almeida de Azevedo, Felipe Seoane Matos, Leonardo Morais Godoy Figueiredo
INTRODUCTION: A satisfactory positioning of the dental implants is very important in the cosmetic and functional outcome in this treatment for edentulous. Insertion of an endosseous implant in the correct positioning requires sufficient bone volume. Therefore, bone-grafting procedures are becoming increasingly common, especially for the augmentation of horizontally deficient ridges. PRESENTATION OF CASE: Many patients have been treated with this technique of appositional Bone Graft Tunneled at our clinic since 2005...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28319535/validation-of-therapeutic-anatomy-oriented-classification-in-endosseous-dental-implant-treatment-a-pilot-study
#13
Marius Kubilius, Yagmur Deniz Ilarslan, Tolga F Tözüm, Hom-Lay Wang, Ričardas Kubilius, Gintaras Juodzbalys
BACKGROUND: The purpose of the study was to validate a newly proposed therapeutic anatomically based clinical and radiological classification for dental implant treatment. METHODS: Eighty-one patients with at least 1 edentulous jaw segment (EJS) from 2 dental clinics were included in this study. Both clinical and radiological parameters were assessed in aesthetic and nonaesthetic zones. The data were then compared at preoperative, intraoperative, and postoperative (subdivided into early and late stage) study stages...
April 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28304382/inhibition-of-cathepsin-k-promotes-osseointegration-of-titanium-implants-in-ovariectomised-rats
#14
Chun Yi, Ke-Yi Hao, Ting Ma, Ye Lin, Xi-Yuan Ge, Yu Zhang
The bone mineral deficiency in osteoporosis poses a threat to the long-term outcomes of endosseous implants. The inhibitors of cathepsin K (CatK) significantly affect bone turnover, bone mineral density (BMD) and bone strength in the patients with osteoporosis. Therefore, we hypothesised that the application of a CatK inhibitor (CatKI) could increase the osseointegration of endosseous implants under osteoporotic conditions. Odanacatib (ODN), a highly selective CatKI, was chosen as the experimental drug. Sixteen rats were randomised into 4 groups: sham, ovariectomy (OVX) with vehicle, OVX with low-dose ODN (5 mg/kg) and OVX with high-dose ODN (30 mg/kg)...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28280731/early-bone-formation-around-immediately-loaded-transitional-implants-inserted-in-the-human-posterior-maxilla-the-effects-of-fixture-design-and-surface
#15
RANDOMIZED CONTROLLED TRIAL
Carlo Mangano, Jamil Awad Shibli, Jefferson Trabach Pires, Giuseppe Luongo, Adriano Piattelli, Giovanna Iezzi
Aim. To evaluate the effects of fixture design and surface on the early bone formation around immediately loaded implants inserted in the human posterior maxilla. Materials and Methods. Ten totally edentulous subjects received two transitional implants: one tapered implant with knife-edge threads/nanostructured calcium-incorporated surface (test: Anyridge®, Megagen, Gyeongbuk, South Korea) and one cylindrical implant with self-tapping threads/sandblasted surface (control: EZPlus®, Megagen). The implants were placed according to a split-mouth design and immediately loaded to support an interim complete denture; after 8 weeks, they were removed for histologic/histomorphometric analysis...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28265781/trabecular-deformations-during-screw-pull-out-a-micro-ct-study-of-lapine-bone
#16
Thomas Joffre, Per Isaksson, Philip Procter, Cecilia Persson
The mechanical fixation of endosseous implants, such as screws, in trabecular bone is challenging because of the complex porous microstructure. Development of new screw designs to improve fracture fixation, especially in high-porosity osteoporotic bone, requires a profound understanding of how the structural system implant/trabeculae interacts when it is subjected to mechanical load. In this study, pull-out tests of screw implants were performed. Screws were first inserted into the trabecular bone of rabbit femurs and then pulled out from the bone inside a computational tomography scanner...
March 6, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28258795/additively-manufactured-sub-periosteal-jaw-implants
#17
M Y Mommaerts
Severe bone atrophy jeopardizes the success of endosseous implants. This technical note aims to present the innovative concept of additively manufactured sub-periosteal jaw implants (AMSJIs). Digital datasets of the patient's jaws and wax trial in occlusion are used to segment the bone and dental arches, for the design of a sub-periosteal frame and abutments in the optimal location related to the dental arch and for the design of the suprastructure. The implants and suprastructure are three-dimensionally (3D) printed in titanium alloy...
February 28, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28254262/computed-tomography-and-anatomical-measurements-of-critical-sites-for-endosseous-implants-in-the-pterygomaxillary-region-a-cadaveric-study
#18
Y Uchida, Y Yamashita, A Danjo, K Shibata, A Kuraoka
The aim of this study was to obtain computed tomography (CT) and physical measurements of the pterygomaxillary region to determine the anatomical and radiographic landmarks that clinicians need for pterygoid implant placement. Seventy-eight hemi-heads with an atrophic posterior maxilla from 46 cadaveric samples were measured using CT. Twenty-one hemi-heads were selected randomly for physical measurements. CT measurements showed that the mean and minimum distance between the maxillary tuberosity point (MT) and the most lateral lowest point of the pterygomaxillary fissure (PF) were 18...
February 26, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28244429/tin-x-o-y-coatings-facilitate-the-initial-adhesion-of-osteoblasts-to-create-a-suitable-environment-for-their-proliferation-and-the-recruitment-of-endothelial-cells
#19
M Moussa, O Banakh, B Wehrle-Haller, P Fontana, S Scherrer, M Cattani, A Wiskott, S Durual
Titanium-nitride-oxide coatings (TiN x O y ) improve osseointegration of endosseous implants. The exact mechanisms by which these effects are mediated are poorly understood except for an increase of osteoblast proliferation while a high degree of differentiation is maintained. One hypothesis holds that TiN x O y facilitates the initial spreading and adhesion of the osteoblasts. The aim of this work was to investigate the molecular mechanisms of osteoblast adhesion on TiN x O y as compared to microrough titanium SLA...
February 28, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28218025/dental-implants-and-incisor-bridge-placement-in-a-dog
#20
Rocco E Mele, Anthony Caiafa, Gregori M Kurtzman
Veterinary dentistry has tended to follow the trends and advancements in the human dental field. As for any procedure performed on a patient, whether human or animal, an informed decision is based on the available evidence regarding treatment options. This is certainly true for the more involved treatments in veterinary dentistry which can include the disciplines of endodontics and dental implantology. A number of published case reports have been accepted by the specialty that endodontic therapy is indeed a predictable and a valuable service that can be offered to pet owners...
December 2016: Journal of Veterinary Dentistry
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