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KMID : 0602720110150010022
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Implantology
2011 Volume.15 No. 1 p.22 ~ p.30
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Histomorphometric Evaluation of New Bone Formation around a Magnetic Implant in Dogs
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Baek Sung-Moon
Kim Su-Gwan
Lim Seung-Cheoul
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Abstract
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Purpose: The purpose of this study was to examine the effect of a magnetic field on the new bone formation rate around an implant in the dog mandible.
Materials and Methods: Four adult mongrel dogs weighing about 10~15 kg were used. The first through fourth mandibular premolars were extracted from the dogs. Four weeks after extraction, 4 machined-surface dental implants (2 implants are neodymium magnetic implants and 2 implants are non-magnetic implants) were placed sequentially in the left mandible. Four weeks after the placement of implants in the left mandible, 4 machined-surface implants (2 implants are neodymium magnetic implants and 2 implants are non-magnetic implants) were placed in the right mandible. Four implants were placed on each side, for a total of eight implants per animal and a total of 32 implants overall for the study. Osseointegration was evaluated using histomorphometric methods.
Results: The experimental group had a better percentage of bone-implant contact than the control group, but no significant
difference was observed at 4 and 8 weeks after implantation.
Conclusion: The magnetic field of the permanent magnet appeared to affect the growth rate of new bone around the implant.
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KEYWORD
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bone-implant contact, implant, magnetic, osseointegration
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