Objective To compare the effectiveness of stainless steel ligation wire or elastic ligation ring arch wire for fixation in oral orthodontics.Methods A total of 97 patients who received oral orthodontic treatment in a hospital in Henan Province from June 2019 to June 2020 were selected and assigned to a control group（n=48） and a study group（n=49） by random number table method.The patients in the control group received elastic ligation ring arch wire fixation

and the patients in the study group received stainless steel ligation wire fixation.The effectiveness

oral conditions

and the ligation time and removal of the orthodontic appliances were compared between the two groups after half a year of treatment.Results The total effective rate of patients in the study group was 95.92%

which was higher than 77.08% in the control group

and the difference was statistically significant（χ~2=7.412

P=0.006）.The detection rate of oral microbes in the study group after treatment was 10.20%

which was lower than 33.33% in the control group

and the difference was statistically significant（χ~2=7.647

P=0.006）.The ligation time and removal time of orthodontic appliances in the study group were longer than those in the control group

and the difference was statistically significant（P <0.05）.Conclusion The effectiveness of stainless steel ligation wire for orthodontic patients is superior to that of elastic ligation arch wire

which can effectively reduce bacteria in the oral cavity

with better prognoses for patients

but the orthodontic ligature time and the removal time are relatively longer.