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https://www.readbyqxmd.com/read/28209380/space-maintaining-management-in-maxillary-sinus-lifting-a-novel-technique-using-a-resorbable-polymeric-thermo-reversible-gel
#1
G Cossellu, G Farronato, D Farronato, G Ceschel, F Angiero
Several techniques have been proposed to achieve sinus floor elevation and the formation of new bone through the grafting of autologous, heterologous, or alloplastic materials. The grafted materials act as a scaffold for bone formation inside the maxillary sinus. This study investigated a non-graft sinus lifting procedure using a resorbable polymeric thermo-reversible gel. A space-maintaining approach to sinus lifting, using a resorbable polymeric thermo-reversible gel, was applied in 11 patients undergoing implant treatment in the atrophic posterior maxilla...
February 10, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28207598/newly-formed-bone-induced-by-recombinant-human-bone-morphogenetic-protein-2-a-histological-observation
#2
Azumi Hirata, Takaaki Ueno, Peter K Moy
PURPOSE: To observe, histologically, bone induced by recombinant human bone morphogenetic protein-2 (rhBMP-2) in onlay grafted and sinus lifted alveolaris. MATERIAL AND METHODS: Eighteen patients were treated with rhBMP-2 at concentration 1.5 mg/mL with an absorbable collagen sponge (ACS). The treated bone was harvested with small trephine bur at 5 or 7 months after surgery for the micro Computer Scanning (CT) and light microscopic observation. RESULTS: Micro CT showed clearly 3-dimensional trabecular bone structure...
February 14, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28207597/implant-anchorage-in-the-nasopalatine-canal-for-the-rehabilitation-of-severely-atrophic-maxilla
#3
Pâmela Leticia Dos Santos, Gustavo Henrique Souza Silva, Raquel Damazia da Silva, Fernanda Rayssa Da Silva Pereira, Jéssica Lemos Gulinelli
PURPOSE: This study aimed to describe the clinical case of implant placement in the nasopalatine canal as an aid for atrophic maxilla rehabilitation. CASE REPORT: The surgical procedure was carried out in 2 stages, the first part consisted of a surgery to lift the maxillary sinus membrane associated with the xenogeneic bone placement and the second part consisted of the surgery for the implants placement, both under local anesthesia. A number of seven osseointegrated implants were placed in the maxilla, one was anchored in the nasopalatine canal region after having its neurovascular content emptied by means of the use of drill threads of the implant system...
February 14, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28206730/sinus-presurgical-evaluation-a-literature-review-and-a-new-classification-proposal
#4
Lorenzo Tavelli, Andrea E Borgonovo, Dino Re, Carlo Maiorana
Presurgical evaluation with cone beam computed tomography (CBCT) or computed tomography (CT) has become an essential tool for diagnosis and surgical planning, including maxillary sinus floor elevation. Before performing a sinus lift, the clinician's attention should not be only directed to the patency of the ostium through CBCT or CT, because many anatomical features could influence the surgical approach of sinus floor elevation. The goal of this article was to facilitate the communication between clinicians regarding the type of maxillary sinus, encourage in-depth analysis prior to surgery and reduce the risk of complications due to possible underestimation of important parameters...
February 15, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28204808/bone-morphogenetic-protein-2-enhances-the-osteogenic-differentiation-capacity-of-mesenchymal-stromal-cells-derived-from-human-bone-marrow-and-umbilical-cord
#5
Kulisara Marupanthorn, Chairat Tantrawatpan, Pakpoom Kheolamai, Duangrat Tantikanlayaporn, Sirikul Manochantr
Mesenchymal stromal cells (MSCs) are multipotent cells that can give rise to different cell types of the mesodermal lineages. They are powerful sources for cell therapy in regenerative medicine as they can be isolated from various tissues, and can be expanded and induced to differentiate into multiple lineages. Recently, the umbilical cord has been suggested as an alternative source of MSCs. Although MSCs derived from the umbilical cord can be induced to differentiate into osteoblasts with a phenotypic similarity to that of bone marrow-derived MSCs, the differentiation ability is not consistent...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28185708/use-of-autogenous-bone-and-beta-tricalcium-phosphate-in-maxillary-sinus-lifting-histomorphometric-study-and-immunohistochemical-assessment-of-runx2-and-vegf
#6
R S Pereira, L F Gorla, F B J D Boos, R Okamoto, I R Garcia Júnior, E Hochuli-Vieira
The aim of this study was to compare the use of beta-tricalcium phosphate (β-TCP) (chronOS) with autogenous bone grafts alone in maxillary sinus elevation surgery. The test samples were β-TCP alone, β-TCP mixed with autogenous bone grafts (1:1), and autogenous bone grafts alone. Twelve maxillary sinuses were grafted with β-TCP (group 1), nine with β-TCP+autogenous bone graft (group 2), and 12 with autogenous bone graft (group 3). After 6 months, biopsies were obtained concurrent to the placement of dental implants; these were subjected to histomorphometric analysis and immunohistochemical analysis for runt-related transcription factor 2 (RUNX2) and vascular endothelial growth factor (VEGF)...
February 6, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28181688/dental-implants-and-bone-augmentation-in-hiv-infected-patients-under-haart-case-report-and-review-of-the-literature
#7
Fábio Vidal, Rafael Vidal, Jeter Bochnia, Rodrigo Carvalho de Souza, Lucio Souza Gonçalves
The present study reviewed the literature regarding dental implants in HIV-infected patients and reports the long-term follow-up of three clinical cases of patients under HAART that received bone augmentation and dental implants. The first case presents a young patient with a large defect in the mandible, as a consequence of a longitudinal fracture, that was treated with guided bone regeneration (GBR) previously to implant placement. The second case reported is middle-aged man with a fractured upper lateral incisor treated with immediate placement and simultaneous GBR to repair the dehiscence due to the buccal bone resorption...
February 9, 2017: Special Care in Dentistry
https://www.readbyqxmd.com/read/28101497/the-factors-that-influence-postoperative-stability-of-the-dental-implants-in-posterior-edentulous-maxilla
#8
Yun-Ho Kim, Na-Rae Choi, Yong-Deok Kim
BACKGROUND: All clinicians are aware of the difficulty of installing a dental implant in posterior maxilla because of proximate position of maxillary sinus, insufficient bone width, and lower bone density. This study is to examine which factors will make the implantation in the posterior maxilla more difficult, and which factors will affect the postoperative implant stability in this region. METHODS: Five hundred seventy-three fixtures on the maxilla posterior were included for this study from all the patients who underwent an installation of the dental implant fixture from January 2010 to December 2014 at the Department of Oral and Maxillofacial Surgery in Pusan National University Dental Hospital (Yangsan, Korea)...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28081288/short-dental-implants-6-mm-versus-long-dental-implants-11-15-mm-in-combination-with-sinus-floor-elevation-procedures-3-year-results-from-a-multi-center-randomized-controlled-clinical-trial
#9
Veronika Pohl, Daniel S Thoma, Katarzyna Sporniak-Tutak, Abel Garcia-Garcia, Thomas D Taylor, Robert Haas, Christoph H F Hämmerle
AIM: To test whether or not the use of short dental implants (6 mm) results in an implant survival rate similar to that with longer implants (11-15 mm) in combination with sinus grafting. METHODS: This multi-center study enrolled 101 patients with partial edentulism in the posterior maxilla and a remaining bone height of 5-7 mm. Included patients were randomly assigned to receive short implants (6 mm; GS / group short) or long implants (11-15 mm) simultaneously with sinus grafting (GG / group graft)...
January 12, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28050978/prevalence-location-and-size-of-maxillary-sinus-septa-computed-tomography-scan-analysis
#10
Ferial Taleghani, Maryam Tehranchi, Shahryar Shahab, Zahra Zohri
INTRODUCTION: The present study was undertaken to evaluate the anatomy of the maxillary sinus in relation to its position and the height of its septa, using cone beam computed tomography (CBCT). MATERIALS AND METHODS: In this descriptive retrospective study, 300 CBCT images of maxillary sinuses of patients with posterior maxillary edentulism were evaluated. The maxillary sinus septa were evaluated in relation to their prevalence, height, and position; t-test and Mann-Whitney tests were used for the analysis of data...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28042444/endoscopic-management-of-the-schneiderian-membrane-perforation-during-transcrestal-sinus-augmentation-a-case-report
#11
M Andreasi Bassi, C Andrisani, S Lico, Z Ormanier, A Barlattani, L Ottria
PURPOSE: In this article the Authors describe a procedure aimed to restore under endoscopic control, the continuity, of the Schneiderian membrane (SM) incidentally teared during a sinus lift with transcrestal approach. MATERIALS E METHODS: In a 44-year-old male, due to aforementioned complication, the SM was gently detached via transcrestal approach, with a customized small ball burnisher, in order to facilitate the placement of a collagen sponge, to close the communication with the sinus, followed by the subsequent insertion of a graft material...
October 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28042436/the-use-of-various-biomaterials-in-computer-guided-crestal-sinus-lift-procedures-a-report-on-two-case-studies-with-volume-comparison
#12
M A Lopez, S Lico, M Casale, Z Ormanier, F Carinci
PURPOSE: In the context of the transcrestal maxillary sinus lift a wide variety of biomaterials have been used to fill the subantral space over the years. In this study, two types of biomaterials were used in order to fill the maxillary sinus: a nano-crystallized hydroxyapatite in an aqueous solution and a micronized heterologous bone in a collagen matrix. MATERIALS AND METHODS: The surgical procedures were designed and carried out using computer-guided surgery...
April 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28042432/upper-full-arch-rehabilitation-with-sinus-by-pass-with-tilted-implants-via-tapered-threaded-expanders-in-low-density-bone-a-clinical-trial
#13
M Andreasi Bassi, C Andrisani, S Lico, Z Ormanier, C Arcuri
PURPOSE: In the present paper the use of tapered-screw bone expanders (TSBEs) is proposed, in combination with the placement of tilted implants, in close proximity to the anterior sinus wall, solving the problem of the reduced height of the alveolar bone in the sub-antral area. The Authors present a case series of full-arch rehabilitations performed with this procedure named: Tilted Implant Expansion Osteotomy (TIEO). MATERIALS AND METHODS: 12 patients (5 males and 7 females, average age 58...
April 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28003001/molecular-cellular-and-pharmaceutical-aspects-of-bone-grafting-materials-and-membranes-during-maxillary-sinus-lift-procedures-part-1-a-general-overview
#14
Adriano Piatelli, Giovanna Iezzi, Alessandra Giuliani, Carlo Mangano, Licia Manzon, Marco Degidi, Flavia Iaculli, Antonio Scarano, Antonella Filippone, Vittoria Perrotti
Sinus augmentation procedure has been demonstrated to be a highly predictable treatment in posterior maxilla atrophy. All the surgical interventions in the maxillary region require deep knowledge of anatomy and possible anatomical variations. In this article pre-operative and post- operative assessments of sinus cavity as well as novel approaches to deepen our knowledge of the behavior of bone substitute materials are described. The awareness of the patient's morphologic conditions enables exact planning of invasive surgery and aids to avoid complications...
December 21, 2016: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28002992/molecular-cellular-and-pharmaceutical-aspects-of-bone-grafting-materials-and-membranes-during-maxillary-sinus-lift-procedures-part-1-a-general-overview
#15
Adriano Piatelli, Giovanna Iezzi, Alessandra Giuliani, Carlo Mangano, Licia Manzon, Marco Degidi, Flavia Iaculli, Antonio Scarano, Antonella Filippone, Vittoria Perrotti
Sinus augmentation procedure has been demonstrated to be a highly predictable treatment in posterior maxilla atrophy. All the surgical interventions in the maxillary region require deep knowledge of anatomy and possible anatomical variations. In this article pre-operative and post- operative assessments of sinus cavity as well as novel approaches to deepen our knowledge of the behavior of bone substitute materials are described. The awareness of the patient's morphologic conditions enables exact planning of invasive surgery and aids to avoid complications...
December 21, 2016: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/27990507/four-mm-long-versus-longer-implants-in-augmented-bone-in-atrophic-posterior-jaws-4-month-post-loading-results-from-a-multicentre-randomised-controlled-trial
#16
Marco Esposito, Giovanni Zucchelli, Carlo Barausse, Roberto Pistilli, Anna Trullenque-Eriksson, Pietro Felice
PURPOSE: To evaluate whether 4-mm long dental implants could be an alternative to augmentation with equine bone blocks and the placement of at least 10-mm long implants in atrophic posterior jaws. MATERIALS AND METHODS: Forty patients with atrophic posterior (premolar and molar areas) mandibles having 5 to 6 mm bone height above the mandibular canal and 40 patients with atrophic maxillae having 4 to 5 mm below the maxillary sinus, were randomised according to a parallel group design to receive one to three 4...
2016: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/27977827/minimally-invasive-sinus-augmentation-procedure-using-a-dedicated-hydraulic-sinus-lift-implant-device-a-prospective-case-series-study-on-clinical-radiologic-and-patient-centered-outcomes
#17
Marco Tallarico, Silvio Mario Meloni, Erta Xhanari, Milena Pisano, David L Cochran
The aim of this study was to evaluate clinical and radiologic outcomes of a novel device that allows simultaneous hydraulic sinus membrane elevation, bone grafting, and implant placement. A sample of 18 consecutive participants with severe atrophy of the posterior maxilla underwent transcrestal elevation of the sinus membrane and implant placement. At the 6-month follow-up, the following parameters were assessed: implant success, any complications, marginal bone loss (MBL), three-dimensional (3D) graft measurements, implant stability quotient (ISQ), and graft density...
January 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/27941347/feasibility-of-shape-memory-ni-ti-alloy-wire-containing-tube-elevators-for-transcrestal-detaching-maxillary-sinus-mucosa-ex-vivo-study
#18
Yanfeng Li, Fuli Wang, Pin Hu, Jiadong Fan, Yishi Han, Bin Liu, Tao Liu, Chunhao Yang, Xiangmin Gu
BACKGROUND: Osteotome sinus floor elevation is a less invasive approach to augment an insufficient alveolar bone at the posterior maxilla for dental implantation. However, this approach has some limitations due to the lack of sinus lift tools available for clinical use and the small transcrestal access to the maxillary sinus floor. We recently invented shape-memory Ni/Ti alloy wire containing tube elevators for transcrestal detaching maxillary sinus mucosa, and developed goat ex vivo models for direct visualizing the effectiveness of detaching sinus mucosa in real time during transcrestal maxillary sinus floor elevation...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27915982/molecular-cellular-and-pharmaceutical-aspects-of-bone-grafting-materials-and-membranes-during-maxillary-sinus-lift-procedures-part-2-detailed-characteristics-of-the-materials
#19
Giovanna Iezzi, Adriano Piatelli, Alessandra Giuliani, Carlo Mangano, Antonio Barone, Licia Manzon, Marco Degidi, Antonio Scarano, Antonella Filippone, Vittoria Perrotti
Various grafts or combination of bone substitute materials have been used in sinus lift procedures. Currently, ongoing developments in several disciplines, from molecular biology and chemistry to computer science and engineering, have contributed to the understanding of biological processes leading to bone healing after the use of bone substitute materials (BSBs) and therefore of the behavior of BSBs. The understanding of the properties of each graft enables individual treatment concepts and therefore allows shift from a simple replacement material to the modern concept of an individually created composite biomaterial...
December 1, 2016: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/27893562/clinical-evaluation-of-zygomatic-implant-supported-fixed-and-removable-prosthesis
#20
Belir Atalay, Özge Doğanay, Banu Karayazgan Saraçoğlu, Özgür Bultan, Günter Hafiz
The aim of our study was to present success and complication rates of 32 zygomatic implants (ZI) and compare satisfaction of patients rehabilitated with ZI supported hybrid prosthesis in atrophic jaws and removable prosthesis in maxillary defects. Sixteen patients who have been diagnosed as atrophic maxilla or maxillary defect were treated with ZI supported hybrid or removable prosthesis between 2008 and 2016 years, respectively. Thirty-two of 70 implants were placed in the zygomatic bone. Two prosthetic groups were compared 1 month after prosthesis delivery in terms of general satisfaction, stability, performance, esthetics, phonetics, hygiene level based on visual analog scale...
January 2017: Journal of Craniofacial Surgery
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