Shanghai Journal of Stomatology ›› 2019, Vol. 28 ›› Issue (5): 549-552.doi: 10.19439/j.sjos.2019.05.020

• Original Articles • Previous Articles     Next Articles

Effect of single low level laser therapy on initial pain during fixed orthodontic treatment

XIAO Ling1, CHEN Rui-xia2, LUO Na1   

  1. 1.Department of Orthodontics, Xining Stomatological Hospital.Xining 810016;
    2.Department of Stomatology, Qinghai Provincial Cardiovascular and Cerebrovascular Disease Specialist Hospital.Xining 810012, Qinghai Province, China
  • Received:2019-03-01 Online:2019-10-25 Published:2019-12-11

Abstract: 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.

Key words: Low level, Laser therapy, Fixed orthodontics, Pain

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