Bone Grafts
Mostrando 25-36 de 120 artigos, teses e dissertações.
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25. The RANK/ RANKL/ OPG interaction in the repair of autogenous bone grafts in female rats with estrogen deficiency
The aim of this study was to evaluate the resorption process during the repair of autogenous bone grafts with or without coverage by an expanded polytetrafluoroethylene (e-PTFE) membrane in female rats with estrogen deficiency using the immunohistochemical technique. Eighty female rats were randomly divided into two groups (OVX and SHAM). The 40 female rats
Braz. oral res.. Publicado em: 15/09/2014
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26. Photoelastic analysis of all-on-four concept using different implants angulations for maxilla
Conventional tilted implants are used in oral rehabilitation for heavily absorbed maxilla to avoid bone grafts; however, few research studies evaluate the biomechanical behavior when different angulations of the implants are used. The aim of this study was evaluate, trough photoelastic method, two different angulations and length of the cantilever in fixed i
Braz. oral res.. Publicado em: 15/09/2014
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27. Can Inorganic Bovine Bone Grafts Present Distinct Properties?
O objetivo deste estudo foi avaliar as características físico-químicas de 3 biomateriais bovinos inorgânicos mineralizados e correlacioná-los com a taxa de dissolução. Bio-Oss(r), Genox Inorgânico(r) e Bonefill(r) foram caracterizados por microscopia eletrônica de varredura com fonte de emissão por efeito de campo (MEV-FEG), espectroscopia de infra
Braz. Dent. J.. Publicado em: 2014
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28. Clinical and radiographic evaluation of Bio-Gen with biocollagen compared with Bio-Gen with connective tissue in the treatment of class II furcation defects: a randomized clinical trial
OBJECTIVE: Treatment of furcation defects are thought to be challenging. The purpose of this study was to evaluate the clinical and radiographic parameters of Bio-Gen with Biocollagen compared with Bio-Gen with connective tissue in the treatment of Class II furcation defects. MATERIAL AND METHODS: In this clinical trial, 24 patients with Class II furca
J. Appl. Oral Sci.. Publicado em: 2013-09
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29. Combined therapy with mineral trioxide aggregate, and guided tissue regeneration for a large radicular cyst: a 13-year follow-up
Biomaterials such as membrane barriers and/or bone grafts are often used to enhance periapical new bone formation. A combination of apical surgery and these biomaterials is one of the latest treatment options for avoiding tooth extraction. In case of periapical lesions, guided tissue regeneration (GTR) is attempted to improve the self-regenerative healing pr
Braz. J. Oral Sci.. Publicado em: 2013-03
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30. Comparative study and histomorphometric analysis of bone allografts lyophilized and sterilized by autoclaving, gamma irradiation and ethylene oxide in rats
PURPOSE: To compare three sterilization methods (autoclave, gamma irradiation and ethylene oxide) over non demineralized lyophilized bone allografts. METHODS: Bone allografts were implanted on paravertebral muscles of 21 rats. After 30 days animals were sacrificed and grafts underwent comparative analysis regarding histomorphometric and macroscopic parameter
Acta Cir. Bras.. Publicado em: 2013-01
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31. Osso autógeno associado a osso bovino inorgânico (GenOx Inorg®) para aumento do soalho do seio maxilar e instalação de implantes: análise comparativa do potencial osteogênico de culturas de células derivadas do sítio doador e do sítio de implantação / The use of autogenous bone combined with anorganic bovine bone graft (GenOx Inorg®) for maxillary sinus augmentation and implat placement: a comparative analysis on the osteogenic potential of cell cultures derived from the donor site and the implant site
Objetivos: O objetivo desse estudo foi avaliar comparativamente o potencial osteogênico in vitro de células obtidas do ramo mandibular (RM, área doadora) e do seio maxilar enxertado com uma mistura de RM e osso bovino inorgânico (OBI), previamente à instalação de implantes de titânio (SM, sítio do seio maxilar enxertado). Material e Métodos: As cé
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/07/2012
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32. Estudo histológico dos tecidos conjuntivo e osteóide em enxertos ósseos com polímero de mamona : estudo experimental em ratos / Histological study of connective and osteoid tissue in bone grafts with castor oil polymer : experimental study in rats
The reconstruction of great bone loss defects represents a challenge for reconstructive surgery. To reconstruct these defects it is necessary to create conditions to stimulate new bone formation, in order to block the connective healing tissue growth towards the bony defect, which blocks the osteogenesis. The autogenous grafts are inconvenient, because they
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/12/2011
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33. Avaliação clínica, histológica e imunológica de enxertos ósseos alógenos fresco-congelados utilizados como técnica na preservação de rebordo alveolar pós-extração / Preservation of alveolar bone in extraction sockets using fresh-frozen bone allograft: a clinical, histological and immunological study
The fresh-frozen bone allograft (FFBA) is an alternative to surgical procedures of bone grafts, mainly in the preservation of alveolar ridge prior the installation of osseointegrated implants. However there are paradigms that surround the relation between immune response to alloantigens present inside the graft and the clinical response of the graft. An atte
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/09/2011
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34. Histomorphometric analysis of the repair process of autogenous bone grafts fixed at rat calvaria with cyanoacrylate
OBJECTIVE: The purpose of this study was to perform histological and histometric analyses of the repair process of autogenous bone grafts fixed at rat calvaria with ethyl-cyanoacrylate adhesive. MATERIAL AND METHODS: Thirty-two rats were divided into two groups (n=16), Group I - Control and Group II - Adhesive. Osteotomies were made at the right parietal bon
Journal of Applied Oral Science. Publicado em: 2011-10
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35. Osteomyelitis: a current challenge
Over the last 30 years, the pathogenesis of osteomyelitis has almost been totally elucidated, and many factors responsible for the persistence of this infection have been identified. Numerous antimicrobial agents with distinct spectrums of action, pharmacokinetics, and pharmacodynamics have been used in its treatment. Surgical techniques, including muscle gr
Brazilian Journal of Infectious Diseases. Publicado em: 2010-06
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36. Histological evaluation of the influence of magnetic field application in autogenous bone grafts in rats
Background: Bone grafts are widely used in oral and maxillofacial reconstruction. The influence of electromagnetic fields and magnets on the endogenous stimulation of target tissues has been investigated. This work aimed to assess the quality of bone healing in surgical cavities filled with autogenous bone grafts, under the influence of a permanent magnetic
Publicado em: 2010