Effects of a buried magnetic field on cranial bone reconstruction in rats
| Autor: | Felipe Ernesto Artuzi, Maíra Cavallet de Abreu, Renan Cavalheiro Langie, Edela Puricelli, Deise Ponzoni |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Male
medicine.medical_specialty Bone Regeneration Time Factors Materials science Significant group Maxillofacial surgery Dentistry Calvaria Stimulation 02 engineering and technology Bone healing Random Allocation 03 medical and health sciences 0302 clinical medicine Terapia de campo magnético medicine Animals Rats Wistar Autogenous bone General Dentistry Bone substitutes Bone Transplantation business.industry Cartilage Skull Reproducibility of Results Original Articles 030206 dentistry 021001 nanoscience & nanotechnology Magnetic field therapy Surgery lcsh:RK1-715 Durapatite Magnetic Fields Treatment Outcome Osso e ossos medicine.anatomical_structure Cranial bone lcsh:Dentistry 0210 nano-technology business Cirurgia maxilofacial |
| Zdroj: | Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS Journal of Applied Oral Science, Vol 24, Iss 2, Pp 162-170 (2016) Journal of Applied Oral Science, Volume: 24, Issue: 2, Pages: 162-170, Published: APR 2016 Journal of Applied Oral Science v.24 n.2 2016 Journal of applied oral science Universidade de São Paulo (USP) instacron:USP Journal of Applied Oral Science |
| ISSN: | 1678-7757 |
| DOI: | 10.1590/1678-775720150336 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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