Bhad Patil WA, Karemore AA. Efficacy of pulsed electromagnetic field in reducing treatment time: A clinical investigation.
Am J Orthod Dentofacial Orthop 2022;
161:652-658. [PMID:
35039203 DOI:
10.1016/j.ajodo.2020.12.025]
[Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 12/01/2020] [Accepted: 12/01/2020] [Indexed: 11/01/2022]
Abstract
INTRODUCTION
The long duration of orthodontic treatment is a major concern for the patient. This study aimed to evaluate the efficacy of pulsed electromagnetic field therapy (PEMF) in accelerating the orthodontic tooth movement, thus reducing treatment duration.
METHODS
Nineteen patients requiring extraction of first premolars were selected for this study. The study design was randomly assigned (sealed envelope randomization) split-mouth design. The rate of individual canine retraction by a nickel-titanium closed-coil spring was done. The experimental side received a PEMF generated by a circuit powered by a watch battery. The circuit was embedded in a removable appliance. Foil was used to obstruct the control side from PEMF exposure. Patients were instructed to wear the appliance for 8-10 hours. Appliance with the device was given from the commencement of canine retraction until the canine retraction of one side was complete. Tooth movement was measured on progress models.
RESULTS
An average increase of 31% in the rate of tooth movement was observed with the PEMF.
CONCLUSIONS
PEMF is a good option to reduce orthodontic treatment duration.
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