Comparison of shear bond strength of orthodontic brackets cured using argon laser and conventional light curing system

Background: The argon laser (AL) can polymerize a light-cured orthodontic adhesive 4 times faster with the same or even higher bond strength and with less frequency of enamel fracture at debonding than with the conventional curing light
Objective: The purpose of this study is to compare the bond strength of orthodontic bracket cured with a conventional curing light and with the argon laser
Method: 60 extracted premolars were collected for this study. All the specimen was standardized into two groups. Group A was orthodontic brackets cured with a conventional curing light and group B was orthodontic brackets cured with argon laser. Bonding of Both groups was done by using Transbond XT primer and adhesive. The shear bond strength of both groups was recorded using the universal testing machine. Results were analyzed using an unpaired t-test.
Results: Shear bond strength of both groups were calculated. A comparison of mean and SD between two groups was done by using an unpaired t-test to assess whether the mean difference between groups is significant or not. Descriptive statistics of each variable were presented in terms of Mean, standard deviation, and standard error of the mean. The results showed that the shear bond strength of both groups was statistically non-significant.
Conclusion: It can be concluded that the shear bond strength of orthodontic bracket cured with conventional curing light is comparable to that of an argon laser and acceptable clinically