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Article: Long-term stability of autogenous bone grafts following combined application with guided bone regeneration

TitleLong-term stability of autogenous bone grafts following combined application with guided bone regeneration
Authors
KeywordsGuided bone regeneration
Membranous bone grafts
Endochondral bone grafts
Issue Date2005
Citation
Clinical Oral Implants Research, 2005, v. 16, n. 2, p. 133-139 How to Cite?
AbstractThe aim of the study was to compare the long-term stability of membranous and endochondral autogenous bone grafts with or without combined application of guided bone regeneration (GBR). Twenty-five, male, 6-month old, albino rats were used in the study. The animals were divided into four groups (A5, A11, B5 and B11). Group A5 (control): The inferior border of the mandible was exposed in both sides. At one side of the jaw, a calvarial bone graft (baseline - 3 × 4 × 0.64 mm) was placed at the inferior border of the mandible and was fixed with a standardized screw-type titanium microimplant. At the contralateral side, an ischiac bone graft (baseline -3 × 4 × 0.87) was transplanted. The healing period was 5 months. Group A11 (control): The animals were treated in the same manner as in Group A5 with the difference that the healing period was 11 months. Group B5 (test): The animals were treated in the same manner as in Group A5 with the difference that an e-PTFE membrane was adapted over the bone graft on each side of the jaw. Group B11 (test): The animals were treated in the same manner as in Group B5 with the difference that 5 months following transplantation the animals were subjected to a second operation and the membranes were removed. The healing period was 11 months. The animals were killed at 5 (Groups A5 and B5) or at 11 months (Groups A11 and B11) following mandibular augmentation and the jaws were defleshed. The width, the length and the thickness/height of the bone graft were evaluated by means of a stereomicroscope. At 5 months, both types of the membrane-treated bone grafts presented increase in all dimensions compared with baseline. However at 11 months, both types of the membrane-treated bone grafts exhibited a decrease in their dimensions which were similar to the baseline measurements. In the control groups, both types of bone graft presented significant resorption both at 5 and at 11 months with the ischiac bone grafts presenting more resorption in width and length than the calvarial bone grafts. It can be concluded that the long-term volume stability of autogenous endochondral and membranous onlay bone grafts combined with GBR is superior to that of autogenous endochondral and membranous onlay bone grafts alone. Copyright © Blackwell Munksgaard 2004.
Persistent Identifierhttp://hdl.handle.net/10722/230740
ISSN
2015 Impact Factor: 3.464
2015 SCImago Journal Rankings: 1.427

 

DC FieldValueLanguage
dc.contributor.authorDonos, Nikolaos-
dc.contributor.authorKostopoulos, Lambros-
dc.contributor.authorTonetti, Maurizio-
dc.contributor.authorKarring, Thorkild-
dc.date.accessioned2016-09-01T06:06:41Z-
dc.date.available2016-09-01T06:06:41Z-
dc.date.issued2005-
dc.identifier.citationClinical Oral Implants Research, 2005, v. 16, n. 2, p. 133-139-
dc.identifier.issn0905-7161-
dc.identifier.urihttp://hdl.handle.net/10722/230740-
dc.description.abstractThe aim of the study was to compare the long-term stability of membranous and endochondral autogenous bone grafts with or without combined application of guided bone regeneration (GBR). Twenty-five, male, 6-month old, albino rats were used in the study. The animals were divided into four groups (A5, A11, B5 and B11). Group A5 (control): The inferior border of the mandible was exposed in both sides. At one side of the jaw, a calvarial bone graft (baseline - 3 × 4 × 0.64 mm) was placed at the inferior border of the mandible and was fixed with a standardized screw-type titanium microimplant. At the contralateral side, an ischiac bone graft (baseline -3 × 4 × 0.87) was transplanted. The healing period was 5 months. Group A11 (control): The animals were treated in the same manner as in Group A5 with the difference that the healing period was 11 months. Group B5 (test): The animals were treated in the same manner as in Group A5 with the difference that an e-PTFE membrane was adapted over the bone graft on each side of the jaw. Group B11 (test): The animals were treated in the same manner as in Group B5 with the difference that 5 months following transplantation the animals were subjected to a second operation and the membranes were removed. The healing period was 11 months. The animals were killed at 5 (Groups A5 and B5) or at 11 months (Groups A11 and B11) following mandibular augmentation and the jaws were defleshed. The width, the length and the thickness/height of the bone graft were evaluated by means of a stereomicroscope. At 5 months, both types of the membrane-treated bone grafts presented increase in all dimensions compared with baseline. However at 11 months, both types of the membrane-treated bone grafts exhibited a decrease in their dimensions which were similar to the baseline measurements. In the control groups, both types of bone graft presented significant resorption both at 5 and at 11 months with the ischiac bone grafts presenting more resorption in width and length than the calvarial bone grafts. It can be concluded that the long-term volume stability of autogenous endochondral and membranous onlay bone grafts combined with GBR is superior to that of autogenous endochondral and membranous onlay bone grafts alone. Copyright © Blackwell Munksgaard 2004.-
dc.languageeng-
dc.relation.ispartofClinical Oral Implants Research-
dc.subjectGuided bone regeneration-
dc.subjectMembranous bone grafts-
dc.subjectEndochondral bone grafts-
dc.titleLong-term stability of autogenous bone grafts following combined application with guided bone regeneration-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1600-0501.2004.01104.x-
dc.identifier.pmid15777321-
dc.identifier.scopuseid_2-s2.0-18744410954-
dc.identifier.volume16-
dc.identifier.issue2-
dc.identifier.spage133-
dc.identifier.epage139-

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