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Biomedical subjects

A M Blechman

Publications and source records attributed to A M Blechman.

10 recordsLinked to original sources
PubMed1998

Pain-free and mobility-free orthodontics?

Pain-free and mobility-free orthodontics are not discussed often, although they obviously would be significant advances and very desirable practice-builders. These advantages have occasionally been reported in the orthodontic literature by different authors who used magnetic force fields for molar distalization, aiding tooth eruption, etc., and are presented here in Group I. Group II discusses several different possible mechanisms of action, including among others, an accelerated osteogenic rate and a sensory neuron action potential blockade. All the available evidence seems to confirm that pain-free and mobility-free orthodontics is a real phenomenon.

Animals↗
PubMed1995

A possible mechanism of action of repelling, molar distalizing magnets. Part I.

The magnetic component of certain time-varying inductive electromagnetic fields may be a large contributor to the accelerated osteogenic rate in nonunion fracture repair. Evidence is also accumulating to demonstrate that certain static magnetic fields may stimulate osteogenesis in in vitro and in vivo research, as well as orthopedic clinical application. We, therefore, hypothesize that static magnetic fields in orthodontics generate simultaneous force fields and bioeffects that may account for the observed benefits.

Cell Membrane↗
PubMed1995

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.

Adolescent↗
PubMed1985

Magnetic force systems in orthodontics. Clinical results of a pilot study.

In this report, the initial results of magnetic force systems as applied to clinical orthodontics are presented. More particularly, the article describes the use of operator-controlled, small, permanent magnets for intermaxillary and intramaxillary mechanics. In addition to generating a force of sufficient intensity and duration, which is controlled by the operator, other advantages also became apparent. Good three-plane vector control independent of patient cooperation were observed in two patients. Both patients reported no discomfort during treatment. Extensive additional clinical testing is currently being conducted.

Adolescent↗