Medical Lasers; Engineering, Basic Research, and Clinical Application  
Application of Photobiomodulation in Hearing Research: Animal Study
Jae­Hun Lee1, Jae Yun Jung1,2,3
1Beckman Laser Institute Korea, College of Medicine, Dankook University, Cheonan, Korea
2Department of Otolaryngology Head and Neck Surgery, College of Medicine, Dankook University, Cheonan, Korea
3Department of Otolaryngology Head and Neck Surgery, Dankook University Hospital, Cheonan, Korea
Correspondence to: Jae Yun Jung
Department of Otolaryngology Head and Neck Surgery, Dankook University Hospital, 316 College of medicine building, 119 Dandae­ro, Dongnam­gu, Cheonan 31116, Korea
Tel.: +82­-41­-550­-3973
Fax: +82­-41­-556­-1090
E­mail: Jjkingy2k@gmail.com
Received: March 9, 2020; Accepted: April 2, 2020; Published online: May 19, 2020.
© Korean Society for Laser Medicine and Surgery. All rights reserved.

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Hearing organs have unique characteristics and have a role in processing external sensory signals. Sensory hair cells and nerve fibers in the organ of Corti can be damaged by various causes and they do not regenerate themselves. Medication used for clinical treatment for the inner ear is limited due to the anatomical structure of the inner ear. Photobiomodulation (PBM) is a therapeutic approach that uses various sources of light and the success of PBM therapy is highly reliant on the parameters of the light sources. The positive effects of PBM have been reported in various clinical fields. This paper summarizes the previously reported research on PBM for the treatment of hearing damage in animal models.
Keywords: Photobiomodulation; Hearing research; Hair cell protection; Nerve regeneration; Diode laser


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