Bone Substitutes
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Produção, caracterização e avaliação in vitro de partículas de quitosana e hidroxiapatita para substituição óssea
Resumo Objetivou-se desenvolver, caracterizar e avaliar in vitro biomateriais compósitos de quitosana com hidroxiapatita (CHI/HA) para atuarem como substitutos ósseos. As quitosanas de baixa (L-CHI) e média (M-CHI) massa molecular foram previamente caracterizadas por gravimetria, viscosimetria e espectrofotometria ultravioleta. Os compósitos de CHI/HA fo
Cerâmica. Publicado em: 14/11/2019
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2. Bone repair induced by different bone graft substitutes in critical-sized defects in rat calvaria
Resumo Introdução A utilização de substitutos ósseos em procedimentos de enxertia de forma alternativa ao uso do osso autógeno tem sido indicada, entretanto a comparação direta entre esses biomateriais tem sido pouco explorada. Objetivo Avaliar o efeito de diferentes biomateriais osteocondutores sobre o reparo de defeitos críticos em calvárias (D
Rev. odontol. UNESP. Publicado em: 01/07/2019
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3. Lactose intolerance: what is a correct management?
RESUMO Os indivíduos com Intolerância à Lactose (IL) tendem a excluir o leite da alimentação, uma vez que essa conduta parece aliviar os sintomas ocasionados pela doença. Entretanto, o leite é um alimento de alto valor nutricional e a exclusão completa dos laticínios pode favorecer o desenvolvimento de doenças ósseas como osteopenia e osteoporose.
Rev. Assoc. Med. Bras.. Publicado em: 2019-02
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4. BONEFILL ® block as alternative for bone substitute: a toxicological evaluation
ABSTRACT Bone substitutes based on hydroxyapatite (HA) and Bonefill® (BO - inorganic bovine bone) associated with poly(lactic-co-glycolic acid) (PLGA) (HA/PLGA and BO/PLGA) were evaluated concerning cytotoxicity, genotoxicity and mutagenicity as potential candidates for bone repair. The materials were developed and provided by Bionnovation Biomedical Produc
Braz. J. Pharm. Sci.. Publicado em: 26/07/2018
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5. Evaluation of photobiomodulation therapy associated with guided bone regeneration in critical size defects. In vivo study
Abstract The repair of bone defects raises the interest of investigators in several health specialties. Grafting techniques with bone substitutes and laser therapies have been investigated to replace autogenous bone and accelerate the bone healing process. Objective To evaluate the effect of photobiomodulation therapy (PBMT) associated with guided bone rege
J. Appl. Oral Sci.. Publicado em: 07/05/2018
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6. Horizontal Bone Reconstruction on sites with different amounts of native bone: a retrospective study
Abstract: The lack of guidelines for bone augmentation procedures might compromise decision making in implantology. The objective of this study was to perform a retrospective study to verify the outcomes of horizontal bone reconstruction in implant dentistry with different types of materials and amounts of native bone in the recipient bed to allow for a new
Braz. oral res.. Publicado em: 05/04/2018
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7. Alveolar bone repair with strontium- containing nanostructured carbonated hydroxyapatite
ABSTRACT Objective: This study aimed to evaluate bone repair in rat dental sockets after implanting nanostructured carbonated hydroxyapatite/sodium alginate (CHA) and nanostructured carbonated hydroxyapatite/sodium alginate containing 5% strontium microspheres (SrCHA) as bone substitute materials. Methods: Twenty male Wistar rats were randomly divided into
J. Appl. Oral Sci.. Publicado em: 18/01/2018
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8. Osteointegration of porous absorbable bone substitutes: A systematic review of the literature
Biomaterials’ structural characteristics and the addition of osteoinductors influence the osteointegration capacity of bone substitutes. This study aims to identify the characteristics of porous and resorbable bone substitutes that influence new bone formation. An Internet search for studies reporting new bone formation rates in bone defects filled with po
Clinics. Publicado em: 2017-07
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9. Morphological and mechanical characterization of chitosan-calcium phosphate composites for potential application as bone-graft substitutes
Introduction: Bone diseases, aging and traumas can cause bone loss and lead to bone defects. Treatment of bone defects is challenging, requiring chirurgical procedures. Bone grafts are widely used for bone replacement, but they are limited and expensive. Due to bone graft limitations, natural, semi-synthetic, synthetic and composite materials have been studi
Res. Biomed. Eng.. Publicado em: 27/11/2015
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10. Minimally traumatic alveolar ridge augmentation with a tunnel injectable thermo-sensitive alginate scaffold
Injectable bone substitutes and techniques have been developed for use in minimally invasive procedures for bone augmentation. Objective : To develop a novel injectable thermo-sensitive alginate hydrogel (TSAH) as a scaffold to induce bone regeneration, using a minimally invasive tunnelling technique. Material and Methods : An injectable TSAH was prepared fr
J. Appl. Oral Sci.. Publicado em: 2015-04
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11. Preparation and characterization of hydrogels with potential for use as biomaterials
Hydrogels have been extensively explored for biomedical applications due to their ability to absorb high water content in its structure, which gives excellent biocompatibility. This work aims at obtaining biocompatible hydrogels with potential for use in increasing the mechanical strength of bone substitutes, or controlled drug release. Poly (N-vinyl-2-pyrro
Mat. Res.. Publicado em: 2014-08
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12. Cell response of calcium phosphate based ceramics, a bone substitute material
The aim of this study was to characterize calcium phosphate ceramics with different Ca/P ratios and evaluate cell response of these materials for use as a bone substitute. Bioceramics consisting of mixtures of hydroxyapatite (HAp) and β-tricalcium phosphate (β-TCP) powders in different proportions were pressed and sintered. The physical and chemical proper
Mat. Res.. Publicado em: 23/04/2013