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Boyne PJ, James RA. Grafting of the maxillary sinus floor with autogenous marrow and bone

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    • "The ratio is related to the fast resorption of the material when used for recovering spacemaking defects. Several published investigation underlined how CaS showed fast replacing with new bone tissue offering better clinical long-term results [5] [6] [7] [8] [9] [10]. "
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    ABSTRACT: Abstract: Purpose: The aim of this investigation was to assess bone healing of sinus lift procedure in which the augmen- tation has been performed by using calcium sulphate like bone substitutes. The methods of this investigation how the use of Cone Beam Computed Tomography (CBCT) may be a valid instrument to support reconstructive surgery of the jaws. Patients and Methodology: 25 Patients presented large bone defects after tooth extractions located in the upper jaw poste- rior area. Vertical bone volume was assessed by CBCT examinations before and about six months after sinus lift surgery. Results: Examined defects treated with sinus lift surgery and evaluated by CBCT showed a strong increasing on the bone volume at 6 months follow up control. Conclusion: Calcium sulphate application in sinus lift surgery represent a safe and predictable option in the place of autologous bone. Therefore the application of CBCT investigation may give the clini- cians the opportunity of evaluating with high precision value, the consistence of the bone defects before the surgery.
    Full-text · Article · Dec 2015 · The Open Dentistry Journal
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    • "The ideal material for bone grafting should be biocompatible, induce no host rejection, present no risk of disease transmission, promote support for bone regeneration, and have mechanical stability from the outset, which should be maintained throughout the healing period [1]. The maxillary sinus floor elevation technique described by Tatum and published by Boyne and James in 1980 [2] described autologous bone as the filling material for the sinus cavity, which is still regarded as the gold standard in bone reconstruction. If, on the one hand, autologous grafts present osteoconductive, osteoinductive, and osteogenic potential [3], on the other, they present some risks [4]. "
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    ABSTRACT: Purpose. To investigate the regenerative results obtained with the association of bone marrow aspirate concentrate using the Bone Marrow Aspirate Concentrate (BMAC) method to a xenogeneic bone graft (Bio-Oss) in sinus floor elevation. Materials and Methods. Using a randomized controlled study design in eight consecutive patients (age of 55.4 ± 9.2 years), 16 sinus floor lift procedures were performed with Bio-Oss alone (control group, CG, í µí±› = 8) or combined with bone marrow aspirate concentrate obtained via the BMAC method (test group, TG, í µí±› = 8). Six months after the grafting procedures, bone biopsies were harvested during implant placement and were analyzed by histomorphometry. Results. Histomorphometric analysis revealed a significantly higher amount (í µí± < 0.05) of vital mineralized tissue in TG when compared to the CG (55.15 ± 20.91% and 27.30 ± 5.55%, resp.). For nonvital mineralized tissue, TG presented a statistically higher level of Bio-Oss resorption (í µí± < 0.05) when compared with the CG (6.32 ± 12.03% and 22.79 ± 9.60%, resp.). Both groups (TG and CG) showed no significantly different levels (í µí± > 0.05) of nonmineralized tissue (38.53 ± 13.08% and 49.90 ± 7.64%, resp.). Conclusion. The use of bone marrow concentrate obtained by BMAC method increased bone formation in sinus lift procedures.
    Full-text · Article · Oct 2015 · International Journal of Biomaterials
    • "To establish a suitable bone height, the sinus floor augmentation (sinus lift, sinus graft, sinus floor elevation ) approach is a common, welldescribed , and successfully proven treatment option (Boyne & James 1980, Strietzel 2004, Browaeys et al. 2007). In this surgical procedure the Schneiderian membrane is elevated and the resulting cavity is filled up either with autologous, allogeneic, xenogeneic, alloplastic, or a combination of these materials (Del Fabbro et al. 2004, Chiapasco et al. 2006, Handschel et al. 2009). "
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    ABSTRACT: Purpose: To investigate the amount of the mineralization of a bovine bone substitute material in sinus floor augmentation after healing times of three and six months. Materials and methods: 51 patients were randomized into two healing time groups and received sinus floor augmentations with a bovine bone material. After three or six months of healing, trephine bone biopsies were retrieved. The biopsies were processed for histologic and histomorphometric evaluations to primarily investigate the amount of mineralized bone in the augmented area and secondarily compare the amount of mineralized bone in the augmented area and in the pristine bone. Statistical tests were performed to analyse the fraction of the mineralized bone (p<.05). Results: The biopsies of both groups showed remnants of the well-integrated bone substitute material. The histology revealed osteoblasts, osteocytes with osteoid, and osteoclasts. The mean percentage of mineralized bone in the augmented area was 23.8% (three months group) and 23.6% (six months group; p=.9246); the amount of remaining bone substitute material was 35% (three months group) and 33.9% (six months group; p=.6325). Conclusion: It can be concluded that the bone maturation in the augmented sinus using the bovine bone material is similar after three and six months. Thus, implant installation after three months following a lateral window sinus floor augmentation approach using a bovine bone material seems to be clinically acceptable. This article is protected by copyright. All rights reserved.
    No preview · Article · Oct 2015 · Journal Of Clinical Periodontology
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