Efficacy of pulsed electromagnetic field in reducing treatment time: A clinical investigation


Author: Wasundhara Ashok Bhad Patil1, Anchal Ashok Karemore2

Affiliation: <sup>1</sup> Department of Orthodontics and Dentofacial Orthopaedics, Government Dental College and Hospital, Nagpur, Maharashtra, India. Electronic address: wasundharabhad@gmail.com.

<sup>2</sup> Department of Orthodontics and Dentofacial Orthopaedics, Government Dental College and Hospital, Nagpur, Maharashtra, India.
Conference/Journal: Am J Orthod Dentofacial Orthop
Date published: 2022 Jan 15
Other:
  Special Notes: doi: 10.1016/j.ajodo.2020.12.025.   ,  Word Count: 177  
    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.





PMID: 35039203 DOI: 10.1016/j.ajodo.2020.12.025