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[Effect of single low level laser therapy on initial pain during fixed orthodontic treatment]
Ling Xiao1, Rui-Xia Chen, Na Luo
1Department of Orthodontics, Xining Stomatological Hospital. Xining 810016, China.
Purpose:
To investigate the effect of single low level laser therapy on initial pain during fixed orthodontic treatment.
Methods:
Sixty patients who underwent fixed orthodontic treatment in our hospital from January 2015 to December 2017 were enrolled.Patients were divided into 2 groups by random number table method, 30 in each group. Patients in the experimental group were treated with a single low level laser therapy ,while patients in the control group were treated with a placebo.The results of the 2 groups were compared in regard to spontaneous pain and chewing pain during the day and night using SPSS 22.0 software package.
Results:
Spontaneous pain during day and night with 0.012, 0.014 inch superelastic nickel-titanium (NiTi) line was significantly lower in the experimental group than in the control group(P<0.05), and there was no significant difference with 0.016 and 0.018 inch NiTi (P>0.05).Chewing pain with 0.012, 0.014, 0.016, and 0.018 inch NiTi lines in the experimental group was significantly lower than that in the control group(P<0.05).
Conclusions:
Single low level laser therapy significantly reduced postoperative pain while placing a superelastic NiTi wire for initial alignment and correction.
