Case reports: molar distalization with static repelling magnets. Part II.
The following two nonextraction therapy case reports demonstrate four important points: (1) Static repelling magnets, with certain characteristic parameters, distalize molars rapidly without adverse effects that are clinically discernable. Beneficial properties such as considerably reduced patient compliance requirements for force application, reduced mobility and discomfort, and mostly bodily movement are demonstrated clinically. (2) Anchorage can be controlled by using conventional techniques of anchorage augmentation or force reduction. (3) Treatment can be satisfactorily completed and documented in accord with contemporary criteria, with conventional therapeutic methods, once the initial, most difficult, magnetic molar distalization is completed. (4) The mechanism of action that accounts for the bioeffects remains unclear. However, we hypothesize that observed reduction of mobility and discomfort during rapid movement, combined with basic research and other clinical data, are attributable to the simultaneous, synergistic property of the magnetic force field, which disrupts the local equilibrium and also the static magnetic bioeffect. Among others, one distinguishing and pertinent bioeffect may be an increased rate of osteogenesis and bone remodeling, which may be very dependent on correct dosage through a possible biologic window and the field geometry.
D000293:Adolescent; D001641:Bicuspid / Q000601:surgery; D005146:Facial Asymmetry / Q000209:etiology / Q000628:therapy; D005260:Female; D006801:Humans; D008280:Magnetics; D008312:Malocclusion, Angle Class II / Q000150:complications / Q000628:therapy*; D008963:Molar; D008964:Molar, Third / Q000601:surgery; D009967:Orthodontic Appliances; D013705:Temporomandibular Joint Disorders / Q000150:complications; D014081:Tooth Extraction; D014087:Tooth Movement Techniques / Q000379:methods*