Photobiomodulation Therapy on Orthodontic Movement: Analysis of Preliminary Studies with a New Protocol

Alessandra Impellizzeri, Martina Horodynski, Riccardo Fusco, Gaspare Palaia, Antonella Polimeni, Umberto Romeo, Ersilia Barbato and Gabriella Galluccio
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Alessandra Impellizzeri: Department of Oral and Maxillofacial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy
Martina Horodynski: Department of Oral and Maxillofacial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy
Riccardo Fusco: Department of Oral and Maxillofacial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy
Gaspare Palaia: Department of Oral and Maxillofacial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy
Antonella Polimeni: Department of Oral and Maxillofacial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy
Umberto Romeo: Department of Oral and Maxillofacial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy
Ersilia Barbato: Department of Oral and Maxillofacial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy
Gabriella Galluccio: Department of Oral and Maxillofacial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy

IJERPH, 2020, vol. 17, issue 10, 1-14

Abstract: This study aimed to investigate the effectiveness of photobiomodulation therapy (PBMT) on the acceleration of orthodontic movements, deriving from its biostimulating and regenerative capacity on soft tissues, consequent to the increase in differentiation, proliferation, and activity of cells that are involved with alveolar bone remodeling. The present randomized controlled trial was conducted on six patients who required extractive orthodontic therapy because their ectopic canines had erupted. A total of eight canines were analyzed, four of which received laser irradiation (i.e., experimental group). Two weeks after the extractions, all canines of the experimental and placebo groups were distalized simultaneously and symmetrically with the laceback retraction technique. The PBMT protocol consisted of four cycles of laser applications, one each on days 0, 3, 7, and 14 of the study, with session treatment durations of 2–4 min. The results of the descriptive analysis on the distal displacement speed of the canines after 1 month of follow-up indicate an average displacement of 1.35 mm for the non-irradiated group and 1.98 mm for the irradiated group. Through inferential analysis, a statistically significant difference ( p < 0.05) was found between the average speed of the irradiated canines and the control canines. The low energy density laser used in this study, with the parameters set, was found to be a tool capable of statistically significantly accelerating the distal displacement of canines.

Keywords: PBMT; photobiomodulation therapy; accelerated orthodontic movement; teeth extraction; premolar extraction; ectopic canines (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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