Comparison of the rate of bond failure and periodontal condition between self-ligating brackets and conventiornl brackets

Objective To compare the rate of bond failure and periodontal condition between the use of self-ligating brackets and conventional brackets.Methods 30 patients(13 to 18 years old)were divided into 2 groups(trial group:15 patients with self-ligating brackets and controlgroup:15 patients with conventional brackets).The rate of bond failure was recorded in both group in six months.Periodontal indices(PLI,GI and SBI) were examined in both groups before and after 6 months of treatment.Results No difference in failure incidence was noted for self-ligating brackets and conventional brackets(P0.05).No difference was found in the indices recorded between the two bracket cohorts studied.Conclusion Self-ligating brackets did not have an advantage over conventiorml brackets with respect to the rate of bond failure and the periodontal status.