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dc.contributor.authorde Macedo, Nelson Luiz-
dc.contributor.authorFerreira Monteiro, Adriana do Socorro-
dc.contributor.authorScavone de Macedo, Luis Guilherme-
dc.identifier.citationImplant Dentistry. Philadelphia: Lippincott Williams & Wilkins, v. 18, n. 2, p. 182-191, 2009.-
dc.description.abstractPurpose: The aim of this study was to evaluate the possibility of obtaining guided bone regeneration using a poly-tetrafluoroethylene (PTFE) nonporous barrier for 2 endosseous implants, partially inserted in tibiae of rabbits.Materials and Methods: Histologic characteristics of the interface between titanium implants (one group with titanium plasma-coated implants and the other group with acid-treated surfaces) and of the regenerated bone were also studied. Twenty screw-vent implants were placed in tibiae of 5 male New Zealand rabbits, 2 at the right side and 2 at the left side, protruding 3 mm from the bone level, to create a horizontal bone defect. At the experimental group the implants were with a PTFE nonporous barrier, whereas no barriers were used in contralateral implants. Animals were sacrificed 3 months after surgery and biopsy specimens were evaluated histologically and histomorphometrically under light microscopy. Student's t test was used for statistical analysis.Results: The histologic measurements showed a mean gain in bone height of 2.15 and 2.42 mm for the barrier group and 1.95 and 0.43 mm for the control group, for the titanium plasma-spray and acid-treated implant surfaces, respectively.Conclusion: The results of the investigation revealed that the placement of implants protruding 3 nun from crestal bone defects may result in vertical bone augmentation using a nonporous PTFE barrier. (Implant Dent 2009;18:182-191)en
dc.publisherLippincott Williams & Wilkins-
dc.sourceWeb of Science-
dc.subjectalveolar ridge augmentationen
dc.subjectguided tissue regenerationen
dc.subjectartificial membranesen
dc.subjectdental implantsen
dc.titleVertical Bone Augmentation Using a Polytetrafluoroethylene Nonporous Barrier for Osseointegrated Implants Partially Inserted in Tibiae of Rabbitsen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationSão Paulo State Univ, Sao Jose dos Campos Dent Sch, Periodont Div, Dept Diagnosis & Surg,Implantol Course, BR-12245000 Sao Jose Dos Campos, SP, Brazil-
dc.description.affiliationUnespSão Paulo State Univ, Sao Jose dos Campos Dent Sch, Periodont Div, Dept Diagnosis & Surg,Implantol Course, BR-12245000 Sao Jose Dos Campos, SP, Brazil-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofImplant Dentistry-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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