Methods: The study design was a randomised controlled clinical trial. 160 patients aged 10-18 years from Tyne and Wear were included in the study. Adhesive allocation was: Group 1 (control group) - Right-On (TP Orthodontics Inc., La Porte, IN 46350); Group 2 - Super-Bond C&B, acid etched for 30 seconds; Group 3 - Super-Bond C&B, air abraded for 3 seconds. Each patient was allocated to group 1, and either group 2 or 3, using the split mouth design. Two Specialist Registrars in Orthodontics placed all brackets. Failure rates and mean survival times, determined by product limit survival analysis, were calculated for each adhesive. Residual adhesive was recorded after bracket debond using a modification of the Adhesive Remnant Index (ARI).
Results: This study reports the results relating to groups 1 and 2. Failure rates and mean survival times were 6.8% and 27.08 months for group 1, and 4.9% and 27.51 months for group 2, respectively. No statistically significant difference was found between groups 1 and 2 for mean survival time (p=0.07), or residual adhesive post debond (p=0.317).
Conclusions: There is no statistically significant difference in the clinical performance of Super-Bond C&B (acid etched for 30 seconds) and Right-On, as determined by bracket failure rate, mean survival time, and residual adhesive post debond.
Grant No. RES 0187/7009 Sun Medical, Kyoto, Japan