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The effects of an acute whole body exposure of rats to a 50 Hz magnetic field on the progress of periodontitis should be investigated.
Periodontitis is a bacteria-caused inflammation of the peridontitium, which gets largely irreversibly destroyed in the course of the disease. The therapeutic use of the magnetic field in the treatment of periodontitis should be estimated with this preliminary study. In each of 10 rats, experimental periodontitis was induced on the left side of the upper jaw. No periodontits was induced on the right side of the upper jaw and this side was used as the control.
Modulation type: pulsed
ばく露時間: continuous for 4 h/day for 7 days
|ばく露時間||continuous for 4 h/day for 7 days|
|チャンバの詳細||rats were immobilized during exposure by using standard Plexiglas restrainers|
|ばく露装置の詳細||two pairs of Helmholtz coils had an inner radius of 12.5 cm, an outer radius of 13.5 cm and consisted of 100 turns of 0.95 mm wire framed on Teflon, respectively; distance between coils was 12.5 cm; temperature was measured|
|磁束密度||97.6 µT||unspecified||測定値||-||at the center of the space between coils|
A significantly decreased gingiva inflammation and mobility of the animals' teeth was found in exposed animals (remark EMF-Portal: no data shown on reference or determination of this result).
The authors conclude that an acute whole body exposure of rats to a 50 Hz magnetic field might have a positive effect on the healing of periodontitis, what should be investigated further in subsequent studies.