Effect of CO2 laser on the prevention of white spot lesions during fixed orthodontic treatment: A randomized clinical trial

Mahmoudzadeh, M. and Alijani, S. and Soufi, L. R. and Farhadian, M. and Namdar, F. and Karami, S. (2019) Effect of CO2 laser on the prevention of white spot lesions during fixed orthodontic treatment: A randomized clinical trial. Turkish Journal of Orthodontics, 32 (3).

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Abstract

Objective: This study aimed to assess the effect of carbon dioxide (CO2) laser on prevention of white spot lesions (WSLs) associated with fixed orthodontic treatment. Methods: In this parallel controlled trial, 554 maxillary anterior teeth in 95 patients with age range of 12-30 years were included. The samples were randomly divided in two groups: 1) CO2 laser (n=278) and 2) control (n=276) groups. Following bracket attachment, the teeth in the laser group were exposed to CO2 laser (0.4 mw, 10.6 µm, 5 Hz) for 20 s, and the control group received placebo light. Incidence, severity, and extent of the lesions were assessed in four surface regions (gingival, incisal, mesial, and distal) at baseline and 6 months post-irradiation. The inter-group comparison was performed by the Mann-Whitney U test and McNemar analysis. Results: A significant difference regarding WSLs incidence in all teeth was observed between the two study groups (p<0.001). The two study groups illustrated a significant difference in lesion extent and incidence in incisal, mesial, and distal regions (p<0.05). The WSLs were significantly different in terms of severity in the incisal and mesial sites (p<0.05). Conclusion: The CO2 laser irradiation seemed to effectively prevent incidence of WSLs. In addition, its effectiveness varied depending on the surface region. ©Copyright 2019 by Turkish Orthodontic Society.

Item Type: Article
Additional Information: Export Date: 16 February 2020 Correspondence Address: Karami, S.; Hamadan School of Dentistry, Department of Orthodontics, Hamadan University of Medical Sciences School of DentistryIran; email: Dr.karami5@gmail.com
Uncontrolled Keywords: Carbon dioxide laser Clinical trial Orthodontic treatment White spot lesion
Subjects: WU Dentistry. Oral surgery
Divisions: Mashhad University of Medical Sciences
Depositing User: mr lib1 lib1
Date Deposited: 21 Jun 2020 07:21
Last Modified: 21 Jun 2020 07:21
URI: http://eprints.mums.ac.ir/id/eprint/18488

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