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Bone reformation and implant integration following maxillary sinus membrane elevation: An experimental study in primates

dc.contributor.authorPalma, Vinicius C.
dc.contributor.authorMagro Filho, Osvaldo [UNESP]
dc.contributor.authorOliveira, José Américo de [UNESP]
dc.contributor.authorLundgren, Stefan
dc.contributor.authorSalata, Luiz A.
dc.contributor.authorSennerby, Lars
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUmeå University
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionGöteborg University
dc.date.accessioned2014-05-27T11:21:53Z
dc.date.available2014-05-27T11:21:53Z
dc.date.issued2006-06-14
dc.description.abstractBackground: Recent clinical studies have described maxillary sinus floor augmentation by simply elevating the maxillary sinus membrane without the use of adjunctive grafting materials. Purpose: This experimental study aimed at comparing the histologic outcomes of sinus membrane elevation and simultaneous placement of implants with and without adjunctive autogenous bone grafts. The purpose was also to investigate the role played by the implant surface in osseointegration under such circumstances. Materials and Methods: Four tufted capuchin primates had all upper premolars and the first molar extracted bilaterally. Four months later, the animals underwent maxillary sinus membrane elevation surgery using a replaceable bone window technique. The schneiderian membrane was kept elevated by insertion of two implants (turned and oxidized, Brånemark System®, Nobel Biocare AB, Göteborg, Sweden) in both sinuses. The right sinus was left with no additional treatment, whereas the left sinus was filled with autogenous bone graft. Implant stability was assessed through resonance frequency analysis (Osstell™, Integration Diagnostics AB, Göteborg, Sweden) at installation and at sacrifice. The pattern of bone formation in the experimental sites and related to the different implant surfaces was investigated using fluorochromes. The animals were sacrificed 6 months after the maxillary sinus floor augmentation procedure for histology and histomorphometry (bone-implant contact, bone area in threads, and bone area in rectangle). Results: The results showed no differences between membrane-elevated and grafted sites regarding implant stability, bone-implant contacts, and bone area within and outside implant threads. The oxidized implants exhibited improved integration compared with turned ones as higher values of bone-implant contact and bone area within threads were observed. Conclusions: The amount of augmented bone tissue in the maxillary sinus after sinus membrane elevation with or without adjunctive autogenous bone grafts does not differ after 6 months of healing. New bone is frequently deposited in contact with the schneiderian membrane in coagulum-alone sites, indicating the osteoinductive potential of the membrane. Oxidized implants show a stronger bone tissue response than turned implants in sinus floor augmentation procedures. © 2006 Blackwell Publishing, Inc.en
dc.description.affiliationDepartment of Oral and Maxillofacial Surgery University of the State of Sao Paulo Faculty of Dentistry of Aracatuba
dc.description.affiliationDepartment of Basic Sciences University of the State of Sao Paulo Faculty of Dentistry of Aracatuba
dc.description.affiliationDepartment of Oral and Maxillofacial Surgery Umeå University, Umeå
dc.description.affiliationDepartment of Oral and Maxillofacial Surgery and Periodontics University of Sao Paulo Faculty of Dentistry of Ribeirao Preto
dc.description.affiliationDepartment of Biomaterials Sahlgrenska Academy Göteborg University, Göteborg
dc.description.affiliationDepartment of Biomaterials Sahlgrenska Academy Göteborg University, PO Box 412, SE 405 30 Göteborg
dc.format.extent11-24
dc.identifierhttp://dx.doi.org/10.2310/j.6480.2005.00026.x
dc.identifier.citationClinical Implant Dentistry and Related Research, v. 8, n. 1, p. 11-24, 2006.
dc.identifier.doi10.2310/j.6480.2005.00026.x
dc.identifier.issn1523-0899
dc.identifier.lattes5535418670745125
dc.identifier.lattes6273648007883637
dc.identifier.scopus2-s2.0-33744908324
dc.identifier.urihttp://hdl.handle.net/11449/68923
dc.language.isoeng
dc.relation.ispartofClinical Implant Dentistry and Related Research
dc.relation.ispartofjcr3.097
dc.relation.ispartofsjr1,827
dc.rights.accessRightsAcesso abertopt
dc.sourceScopus
dc.subjectAugmentation
dc.subjectBone formation
dc.subjectDental implants
dc.subjectExperimental model
dc.subjectMaxillary sinus
dc.subjectMembrane elevation
dc.subjectOsseointegration
dc.subjectSurface treatments
dc.subjectanimal
dc.subjectbone regeneration
dc.subjectbone transplantation
dc.subjectCebidae
dc.subjectcomparative study
dc.subjectmale
dc.subjectmaxillary sinus
dc.subjectmembrane
dc.subjectmethodology
dc.subjectsurface property
dc.subjecttooth implantation
dc.subjectAnimals
dc.subjectBone Transplantation
dc.subjectCebus
dc.subjectDental Implantation, Endosseous
dc.subjectMale
dc.subjectMaxillary Sinus
dc.subjectMembranes
dc.subjectSurface Properties
dc.titleBone reformation and implant integration following maxillary sinus membrane elevation: An experimental study in primatesen
dc.typeArtigopt
dcterms.licensehttp://dx.doi.org/10.2310/j.6480.2005.00026.x
dspace.entity.typePublication
relation.isOrgUnitOfPublication8b3335a4-1163-438a-a0e2-921a46e0380d
relation.isOrgUnitOfPublication.latestForDiscovery8b3335a4-1163-438a-a0e2-921a46e0380d
unesp.author.lattes5535418670745125
unesp.author.lattes6273648007883637
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Odontologia, Araçatubapt
unesp.departmentCiências Básicas - FOApt

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