Effects of a buried magnetic field on cranial bone reconstruction in rats
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/144268 |
Resumo: | The understanding of bone repair phenomena is a fundamental part of dentistry and maxillofacial surgery. Objective: The present study aimed to evaluate the influence of buried magnetic field stimulation on bone repair in rat calvaria after reconstruction with autogenous bone grafts, synthetic powdered hydroxyapatite, or allogeneic cartilage grafts, with or without exposure to magnetic stimulation. Material and Methods: Ninety male Wistar rats were divided into 18 groups of five animals each. Critical bone defects were created in the rats’ calvaria and immediately reconstructed with autogenous bone, powdered synthetic hydroxyapatite or allogeneic cartilage. Magnetic implants were also placed in half the animals. Rats were euthanized for analysis at 15, 30, and 60 postoperative days. Histomorphometric analyses of the quantity of bone repair were performed at all times. Results: These analyses showed significant group by postoperative time interactions (p=0.008). Among the rats subjected to autogenous bone reconstruction, those exposed to magnetic stimulation had higher bone fill percentages than those without magnetic implants. Results also showed that the quality of bone repair remained higher in the former group as compared to the latter at 60 postoperative days. Conclusions: After 60 postoperative days, bone repair was greater in the group treated with autogenous bone grafts and exposed to a magnetic field, and bone repair was most pronounced in animals treated with autogenous bone grafts, followed by those treated with powdered synthetic hydroxyapatite and allogeneic cartilage grafts. |
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Abreu, Maíra Cavallet dePonzoni, DeiseLangie, Renan CavalheiroArtuzi, Felipe ErnestoPuricelli, Edela2016-08-05T02:15:25Z20161678-7757http://hdl.handle.net/10183/144268000992348The understanding of bone repair phenomena is a fundamental part of dentistry and maxillofacial surgery. Objective: The present study aimed to evaluate the influence of buried magnetic field stimulation on bone repair in rat calvaria after reconstruction with autogenous bone grafts, synthetic powdered hydroxyapatite, or allogeneic cartilage grafts, with or without exposure to magnetic stimulation. Material and Methods: Ninety male Wistar rats were divided into 18 groups of five animals each. Critical bone defects were created in the rats’ calvaria and immediately reconstructed with autogenous bone, powdered synthetic hydroxyapatite or allogeneic cartilage. Magnetic implants were also placed in half the animals. Rats were euthanized for analysis at 15, 30, and 60 postoperative days. Histomorphometric analyses of the quantity of bone repair were performed at all times. Results: These analyses showed significant group by postoperative time interactions (p=0.008). Among the rats subjected to autogenous bone reconstruction, those exposed to magnetic stimulation had higher bone fill percentages than those without magnetic implants. Results also showed that the quality of bone repair remained higher in the former group as compared to the latter at 60 postoperative days. Conclusions: After 60 postoperative days, bone repair was greater in the group treated with autogenous bone grafts and exposed to a magnetic field, and bone repair was most pronounced in animals treated with autogenous bone grafts, followed by those treated with powdered synthetic hydroxyapatite and allogeneic cartilage grafts.application/pdfengJournal of applied oral science. Bauru. Vol. 24, no. 2 (Mar./Apr. 2016), p. 162-170Cirurgia maxilofacialTerapia de campo magnéticoOsso e ossosMaxillofacial surgeryMagnetic field therapyBone substitutesEffects of a buried magnetic field on cranial bone reconstruction in ratsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000992348.pdf000992348.pdfTexto completo (inglês)application/pdf6109300http://www.lume.ufrgs.br/bitstream/10183/144268/1/000992348.pdf03e6fda90cdc1cc44f27530ea36602a6MD51TEXT000992348.pdf.txt000992348.pdf.txtExtracted Texttext/plain30937http://www.lume.ufrgs.br/bitstream/10183/144268/2/000992348.pdf.txt1ad6009fdabccecafe9a46c665a4d03cMD52THUMBNAIL000992348.pdf.jpg000992348.pdf.jpgGenerated Thumbnailimage/jpeg1856http://www.lume.ufrgs.br/bitstream/10183/144268/3/000992348.pdf.jpgec49993412756fc5fabd10cde92eecb1MD5310183/1442682018-10-29 07:47:42.157oai:www.lume.ufrgs.br:10183/144268Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-29T10:47:42Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Effects of a buried magnetic field on cranial bone reconstruction in rats |
title |
Effects of a buried magnetic field on cranial bone reconstruction in rats |
spellingShingle |
Effects of a buried magnetic field on cranial bone reconstruction in rats Abreu, Maíra Cavallet de Cirurgia maxilofacial Terapia de campo magnético Osso e ossos Maxillofacial surgery Magnetic field therapy Bone substitutes |
title_short |
Effects of a buried magnetic field on cranial bone reconstruction in rats |
title_full |
Effects of a buried magnetic field on cranial bone reconstruction in rats |
title_fullStr |
Effects of a buried magnetic field on cranial bone reconstruction in rats |
title_full_unstemmed |
Effects of a buried magnetic field on cranial bone reconstruction in rats |
title_sort |
Effects of a buried magnetic field on cranial bone reconstruction in rats |
author |
Abreu, Maíra Cavallet de |
author_facet |
Abreu, Maíra Cavallet de Ponzoni, Deise Langie, Renan Cavalheiro Artuzi, Felipe Ernesto Puricelli, Edela |
author_role |
author |
author2 |
Ponzoni, Deise Langie, Renan Cavalheiro Artuzi, Felipe Ernesto Puricelli, Edela |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Abreu, Maíra Cavallet de Ponzoni, Deise Langie, Renan Cavalheiro Artuzi, Felipe Ernesto Puricelli, Edela |
dc.subject.por.fl_str_mv |
Cirurgia maxilofacial Terapia de campo magnético Osso e ossos |
topic |
Cirurgia maxilofacial Terapia de campo magnético Osso e ossos Maxillofacial surgery Magnetic field therapy Bone substitutes |
dc.subject.eng.fl_str_mv |
Maxillofacial surgery Magnetic field therapy Bone substitutes |
description |
The understanding of bone repair phenomena is a fundamental part of dentistry and maxillofacial surgery. Objective: The present study aimed to evaluate the influence of buried magnetic field stimulation on bone repair in rat calvaria after reconstruction with autogenous bone grafts, synthetic powdered hydroxyapatite, or allogeneic cartilage grafts, with or without exposure to magnetic stimulation. Material and Methods: Ninety male Wistar rats were divided into 18 groups of five animals each. Critical bone defects were created in the rats’ calvaria and immediately reconstructed with autogenous bone, powdered synthetic hydroxyapatite or allogeneic cartilage. Magnetic implants were also placed in half the animals. Rats were euthanized for analysis at 15, 30, and 60 postoperative days. Histomorphometric analyses of the quantity of bone repair were performed at all times. Results: These analyses showed significant group by postoperative time interactions (p=0.008). Among the rats subjected to autogenous bone reconstruction, those exposed to magnetic stimulation had higher bone fill percentages than those without magnetic implants. Results also showed that the quality of bone repair remained higher in the former group as compared to the latter at 60 postoperative days. Conclusions: After 60 postoperative days, bone repair was greater in the group treated with autogenous bone grafts and exposed to a magnetic field, and bone repair was most pronounced in animals treated with autogenous bone grafts, followed by those treated with powdered synthetic hydroxyapatite and allogeneic cartilage grafts. |
publishDate |
2016 |
dc.date.accessioned.fl_str_mv |
2016-08-05T02:15:25Z |
dc.date.issued.fl_str_mv |
2016 |
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http://hdl.handle.net/10183/144268 |
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1678-7757 |
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http://hdl.handle.net/10183/144268 |
dc.language.iso.fl_str_mv |
eng |
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eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of applied oral science. Bauru. Vol. 24, no. 2 (Mar./Apr. 2016), p. 162-170 |
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openAccess |
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