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Τετάρτη 21 Ιουνίου 2017

Magnetic field effects on bone repair after calcium phosphate cement implants: Histometric and biochemistry evaluation

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Thiago Calcagnotto, Marcos Miguel Bechstedt Schwengber, Carlos Cesar De Antoni, Danilo Louzada de Oliveira, Théssio Mina Vago, Jessica Guilinelli

Annals of Maxillofacial Surgery 2017 7(1):18-24

Objective: This work evaluated histologic and biochemically the effect of magnetic field buried in bone repair after autogenous bone graft and calcium phosphate cement implants. Methodology: Bone defects with 5,0 mm of diameter in the cranium of Wistar mice were used to analyse. These mice were submitted to different interventions: autogenous bone graft and calcium phosphate cement implants, both with and without magnetic stimulation. Longitudinal and transversal histometric and biochemistry analysis were made in times of 15, 30 and 60 post-operative days. Results: The histometric transversal analysis did not show significant differences in the bone repair between groups. Longitudinally, significant difference were found in the quantity of neoformed bone between the times 15 and 60 post-operative days in the autogenous bone graft group under magnetic stimulation. The alkaline phosphatase enzyme presented a higher activity in 30 post-operative days and the groups under magnetic stimulation presented reduced enzymatic activity in comparison to the other groups. Conclusion: The permanent and static magnetic field promoted significant differences in the neoformed bone in the groups autogenous bone graft.

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