Monitoring Biochemical and Structural Changes in Human Periodontal Ligaments during Orthodontic Treatment by Means of Micro-Raman Spectroscopy. - Letizia Perillo; Fabrizia d'Apuzzo; Maddalena Illario; Luigi Laino; Gaetano Di Spigna; Maria Lepore; Carlo Camerlingo (Sensors, 2020)