The current evidence suggests no difference between the types of material s after 12 months but favours composite resin adhesives after a > 14-month period .
The clinical relevance of this study is that RM-GIC may have the same clinical debonding ( failure ) rate as composite resin adhesives after 1 year when used for bonding of orthodontic brackets
The aim of this systematic review was to establish whether the clinical debonding ( failure ) rates of orthodontic brackets bonded either with resin-modified glass ionomer ( RM-GIC ) or with composite resin adhesive  are the same .
Clinical comparison between a glass ionomer cement and a composite for direct bonding of orthodontic brackets.
The clinical performance of a glass ionomer cement for direct bonding of orthodontic brackets was compared with a composite resin routinely used in this procedure . Brackets were bonded , using both material s , in alternate quadrants of 16 patients of the Orthodontic Clinic of the State University of Rio de Janeiro . A total of 225 teeth , 112 in the glass ionomer cement group and 113 in the composite group , were tested .  Bond failure frequencies were recorded for 12 months , and chi-square statistical test was carried out comparing the failure rates of the material s. The composite showed a statistically significant lower failure rate ( 7.96 % ) than the glass ionomer cement ( 50.89 % ) , regardless of the dental arch tested . Although the glass ionomer cement presents important properties not observed in the composite , it is necessary to increase its cohesive strength to permit its clinical use for direct bonding of orthodontic brackets
The current evidence suggests no difference between the types of material s after 12 months but favours composite resin adhesives after a > 14-month period .
The clinical relevance of this study is that RM-GIC may have the same clinical debonding ( failure ) rate as composite resin adhesives after 1 year when used for bonding of orthodontic brackets
The aim of this systematic review was to establish whether the clinical debonding ( failure ) rates of orthodontic brackets bonded either with resin-modified glass ionomer ( RM-GIC ) or with composite resin adhesive  are the same .