AIM: Reduced treatment duration and adverse events such as discomfort, pain and external apical root resorption are important factors for care providers and orthodontic patients. The diode laser has been indicated to have the capability to facilitate the differentiation of osteoclastic and osteoblastic cells which could be responsible for the bone remodelling process and the rate of orthodontic tooth movement (OTM). The aim of this study was to evaluate of the efficacy of lowintensity laser therapy (LILT) in reducing orthodontic treatment duration and pain. SUBJECTS AND METHOD: In this randomized split-mouth double blind clinical trial, 18 patients aged 14 to 25 years (mean 16.2 ± 3.32 years), who required canine retraction following four first premolars extraction, were selected. The diode laser (Wiserlaser Doctor Smile; Lambda SPA, Brendola, VI, Italy), set at 980 nm, 100 mW, 5.6 J/cm2, three points from the buccal side and three from lingual side of the tooth, 58 seconds, running in continuous mode, was used for canine retraction in the test maxillary quadrant. The other maxillary quadrant served as the control using the laser pseudo-application. Laser irradiation was applied on days 0, 7, 14, 21 and 28 of each month during the canine retraction phase. Canine retraction was done using a closed coil spring with a force of 150 g after alignment and levelling. RESULTS: Although the mean rate of canine retraction was higher in the test (0.95 mm) than the control group (0.62 mm) at 28 days and there was a tendency for more canine retraction in the test group, there was no significant difference between the mean rate of canine retraction in either group (P = 0.066). CONCLUSIONS: LILT is a good option to reduce treatment duration even if there were no clinically statistically significant changes in the rate of the OTM during the early phase of orthodontic treatment.

THE EFFICACY AND EFFECTIVENESS INDUCED BY DIODE LASER BIOSTIMULATION ON THE RATE OF ORTHODONTIC TOOTH MOVEMENT

Gaetano Isola
Writing – Review & Editing
;
2017

Abstract

AIM: Reduced treatment duration and adverse events such as discomfort, pain and external apical root resorption are important factors for care providers and orthodontic patients. The diode laser has been indicated to have the capability to facilitate the differentiation of osteoclastic and osteoblastic cells which could be responsible for the bone remodelling process and the rate of orthodontic tooth movement (OTM). The aim of this study was to evaluate of the efficacy of lowintensity laser therapy (LILT) in reducing orthodontic treatment duration and pain. SUBJECTS AND METHOD: In this randomized split-mouth double blind clinical trial, 18 patients aged 14 to 25 years (mean 16.2 ± 3.32 years), who required canine retraction following four first premolars extraction, were selected. The diode laser (Wiserlaser Doctor Smile; Lambda SPA, Brendola, VI, Italy), set at 980 nm, 100 mW, 5.6 J/cm2, three points from the buccal side and three from lingual side of the tooth, 58 seconds, running in continuous mode, was used for canine retraction in the test maxillary quadrant. The other maxillary quadrant served as the control using the laser pseudo-application. Laser irradiation was applied on days 0, 7, 14, 21 and 28 of each month during the canine retraction phase. Canine retraction was done using a closed coil spring with a force of 150 g after alignment and levelling. RESULTS: Although the mean rate of canine retraction was higher in the test (0.95 mm) than the control group (0.62 mm) at 28 days and there was a tendency for more canine retraction in the test group, there was no significant difference between the mean rate of canine retraction in either group (P = 0.066). CONCLUSIONS: LILT is a good option to reduce treatment duration even if there were no clinically statistically significant changes in the rate of the OTM during the early phase of orthodontic treatment.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11769/360827
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