Technology Comparative Evaluation of the Effect of Photobiomodulation on Pain Reduction in Individuals Undergoing Segmental Retraction Using a Closing Loop: A Randomized Controlled Clinical Trial – Cureus April 11, 2024 johorbiznet Johor News Comparative Evaluation of the Effect of Photobiomodulation on Pain Reduction in Individuals Undergoing Segmental Retraction Using a Closing Loop: A Randomized Controlled Clinical Trial Cureus Source: Technology News Feed