Journal of implantology and applied sciences ISSN:2765-7833(Print) 2765-7841(Online) 대한구강악안면임플란트학회지

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.