D. Zaffe et al., RABBIT BONE BEHAVIOR AFTER ORTHODONTIC AND PULSED LOW-FREQUENCY ELECTROMAGNETIC-FIELD TREATMENTS, Electro- and magnetobiology, 17(1), 1998, pp. 87-98
The effect of low-frequency pulsed electromagnetic fields (PEMF) on bo
ne was studied after an orthodontic treatment. A spring was positioned
between the incisors and the first molar on both sides of the rabbit
mandible for 14 days. A PEMF treatment was performed 6 h/day on the ri
ght side only. A greater distance between the first and the second mol
ar was recorded in the PEMF treated side with respect to the left side
. In addition, analysis of undecalcified sections shows a lower number
and width of erosion cavities and a greater amount of newly formed (f
luorescent) bone on the right side. In conclusion, PEMF treatment not
only appears to increase bone formation, as previously reported in the
literature, but, acting on osteoclast activity, also seems to improve
bone quality during orthodontic treatment.