Effectiveness of laser irradiation in preventing enamel demineralization during orthodontic treatment: A systematic review

摘要

The objective of this study was to investigate the in vivo effectiveness of laser in the prevention of enamel demineralization during orthodontic treatment. A search of electronic databases (PubMed, ScienceDirect, Google Scholar, Scopus, the Cochrane Central Register of Controlled Trials – CENTRAL, OpenGrey, and ProQuest Dissertations and Theses – PQDT Open from ProQuest) was carried out. In vivo studies, randomized and/or controlled clinical trials regarding the use of laser treatment to prevent enamel demineralization during orthodontic treatment were included. The risk of bias of the studies included was assessed independently by 2 authors according to Cochrane guidelines. Eight articles were identified, comprising a total of 183 patients. Significant differences were observed in enamel demineralization between laser-irradiated and control groups for all laser types: argon laser, CO2 laser, neodymium-doped yttrium aluminum garnet (Nd:YAG) laser, and Optodan? laser, except for argon laser application for curing bracket adhesives, where no statistically significant differences were noted. Laser irradiation may be effective in inhibiting demineralization during orthodontic treatment, but there is a need for further randomized, controlled clinical trials, utilizing different laser systems to determine real clinical efficacy of the technique.