Clinical similarities and histological diversity comparing fresh frozen onlay bone blocks allografts and autografts in human maxillary reconstruction

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dc.contributor.authorSpin-Neto, Rubens [UNESP]
dc.contributor.authorLandazuri Del Barrio, Ricardo Andrés [UNESP]
dc.contributor.authorPereira, Luis Antonio Violin Dias
dc.contributor.authorMarcantonio, Rosemary Adriana Chierici [UNESP]
dc.contributor.authorMarcantonio, Elcio [UNESP]
dc.contributor.authorMarcantonio Júnior, Elcio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-27T11:30:06Z
dc.date.available2014-05-27T11:30:06Z
dc.date.issued2013-08-01
dc.description.abstractBackground: In the absence of autologous bone for harvesting, fresh-frozen bone allografts turned into an alternative for bone reconstruction procedures. Purpose: The purpose of this study was to make a histological analysis of fresh-frozen onlay bone allografts (ALs), compared with autografts, in patients who needed maxillary reconstruction prior to dental implants placement. Materials and Methods: Twelve patients with bone deficiencies (width inferior to 4mm) in the sites where the implants were planned were enrolled in the study. From these, six were elected to be treated with autogenous (AT) bone grafts and six with fresh-frozen bone AL. This last group included the patients who had absence of a convenient amount of bone in donor sites. Each patient received from one to six graft blocks, totalling to 12 ATs and 17 ALs. Seven months after grafting procedures, biopsies of the grafts were made using 2-mm internal diameter trephine burs, and processed for histological analysis. One biopsy was retrieved from each patient. Results: Clinically, all grafts were found to be firm in consistency and well-incorporated to the receptor bed. Histological analysis showed a large amount of necrotic bone surrounded by few spots of new-formed bone in the AL group, suggesting low rate of graft remodeling. In the AT group, an advanced stage of bone remodeling was seen. Conclusions: Human fresh-frozen bone block AL showed clinical compatibility for grafting procedures, although associated to slow remodeling process. Further studies are needed to define, at long term, the remodeling process chronology the clinical longitudinal results for fresh-frozen bone AL. Copyright © 2013 Wiley Periodicals, Inc.en
dc.description.affiliationUNESP - Univ. Estadual Paulista Araraquara Dental School Department of Periodontology, Araraquara, São Paulo
dc.description.affiliationUNICAMP - State University of Campinas Institute of Biology Department of Histology and Embryology, Campinas, São Paulo
dc.description.affiliationUNESP - Univ. Estadual Paulista Araraquara Dental School Department of Bucco-Maxillo-Facial Surgery, Araraquara, São Paulo
dc.description.affiliationUnespUNESP - Univ. Estadual Paulista Araraquara Dental School Department of Periodontology, Araraquara, São Paulo
dc.description.affiliationUnespUNESP - Univ. Estadual Paulista Araraquara Dental School Department of Bucco-Maxillo-Facial Surgery, Araraquara, São Paulo
dc.format.extent490-497
dc.identifierhttp://dx.doi.org/10.1111/j.1708-8208.2011.00382.x
dc.identifier.citationClinical Implant Dentistry and Related Research, v. 15, n. 4, p. 490-497, 2013.
dc.identifier.doi10.1111/j.1708-8208.2011.00382.x
dc.identifier.issn1523-0899
dc.identifier.issn1708-8208
dc.identifier.lattes3534044399884035
dc.identifier.lattes6100859465871929
dc.identifier.scopus2-s2.0-84881245753
dc.identifier.urihttp://hdl.handle.net/11449/76162
dc.identifier.wosWOS:000322580400003
dc.language.isoeng
dc.relation.ispartofClinical Implant Dentistry and Related Research
dc.relation.ispartofjcr3.097
dc.relation.ispartofsjr1,827
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAtrophic maxillae
dc.subjectBone allograft
dc.subjectHistological analysis
dc.titleClinical similarities and histological diversity comparing fresh frozen onlay bone blocks allografts and autografts in human maxillary reconstructionen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
unesp.author.lattes3534044399884035
unesp.author.lattes6100859465871929
unesp.author.orcid0000-0003-1294-2305[5]
unesp.author.orcid0000-0002-9660-4524[6]
unesp.author.orcid0000-0002-5052-7439[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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