التقييم النسيجي لتأثير الحقل المغناطيسي في شفاء العيوب العظمية عند الأرانب

الملخص EN

Background & Aim of Study: Bone neoformation is primary importance for the success of maxillofacial surgical treatments.

and there are various methods to reach this aim as the physical methods including the usage of electrical , electromagnetic & static magnetic field due to its effect on bone.

Aim of study to investigate, the effect of a static magnetic field on the density of bone and osteoblast , without bone graft, With auto graft and With hidroxiapatite.

Materials & Methods: The study was performed on 40 male of white New-Zeeland rabbits, every one of them underwent a surgical procedure under general anesthesia, in which three separate hole were prepared in bone of right leg.

the first hole was filled with bone auto graft, the second hole was empty and last hole was filled with hidroxiapatite.

We applied a special apparatuses on whole of the rabbit's but only 20 apparatuses of them (experimental sample) included two pieces of magnet (1cm* 3 cm * 3 mm) with 3 cm distance between them in order to produce a 5 gauss intensity magnetic field Sacrificing of five rabbits from each group and bone samples obtaining was done on (7, 15 , 30 & 60 days) after operation.

the last period were studied in both descriptive histological and statistical studying.

Results: Data was subjected to statistical analysis.

P-Value<0.05 was considered as significant.

The results of this study showed that the magnetic field increases the osteoblast proliferation in bone defects with auto graft or without any graft, has no effect on bone density and hidroxiapatite.

Conclusion: Static Magnetic field effects on osteoblast cells but doesn't affect on bone density and also doesn't affect on graft (hidroxiapatite).