Avaliação de uma hidroxiapatita reabsorvível densa utilizada no seio maxilar: análise microscópica e clínica

Detalhes bibliográficos
Ano de defesa: 2011
Autor(a) principal: Ostetto, Salomão Rick lattes
Orientador(a): Francischone, Carlos Eduardo lattes
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: IASCJ - Universidade Sagrado Coração
Programa de Pós-Graduação: Implantologia
Departamento: Ciências da Saúde e Biológicas
País: BR
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: http://localhost:8080/tede/handle/tede/61
Resumo: The sinus lift procedure has been used over the years as a technique with high predictability, becoming possible the implants placement in the maxillary posterior region. The alloplastics materials even though have neither osteogenic nor osteoinductor potential, have been used during a long time to replace the use of the autogenous bone grafts, showing, through its osteoconductive properties, favorable results to this kind of procedure. The hydroxyapatite commercially known as OsteoGen® is a synthetic, resorbable and nonceramic type of hydroxyapatite. It is a material produced through a low temperature process being highly hydrophilic. The literature shows that this hydroxyapatite has been used in sinus lift procedures since 1989 and recently, a new generation of regenerative materials obtained through this hydroxyapatite (Osteogen®) has been studied. The aim of this research was to review the OsteoGen® literature and to evaluate the clinical, radiographic and histological response of this resorbable hydroxyapatite used as graft material in the maxillary sinus being used in the following versions: OsteoGen® Putty (OsteoGen® in a dense consystence) and OsteoXcel® ( OsteoGen® with the incorporation of DFDBA). The results obtained using these materials showed radiographic and tomographic evidence of the maxillary sinus fulfil, allowing the implants placement followed by the prosthetic rehabilitation. The microscopic results confirmed the biocompatibility and osteoconductive properties of the material through the new bone formation observed around the remaining hydroxyapatite crystals.