A 12-MONTH CLINICAL COMPARISON OF RESIN-MODIFIED LIGHT-ACTIVATED ADHESIVES FOR THE CEMENTATION OF ORTHODONTIC MOLAR BANDS

A clinical trial is reported on the retention rates of resin-modified light-activated adhesives for the cementation of orthodontic molar ban ds. Fifty consecutive cases were fully banded and monitored over 12 mo nths. Fuji II LC (GC International) recorded a failure rate of 2.9%, B andlok (Reliance Orthodontic Products) 8.1%, with Ketac Cem (Espe) che mical cure 3.5%. There were no statistically significant differences b etween these rates. Fuji II LC and Ketac Cem failed at the interface b etween the adhesive and the metal, while Bandlok failed at the interfa ce between the enamel and the adhesive. It is suggested that Fuji II L C and Ketac Cem will afford greater protection to the enamel against m icroleakage and demineralization than Bandlok.