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 .
Decalcification and bond failure: A comparison of a glass ionomer and a composite resin bonding system in vivo.
Decalcification during orthodontic treatment is a serious problem . A glass ionomer agent is now available to bond orthodontic brackets as an alternative to composite resins . This prospect i ve study was a clinical trial to determine if a glass ionomer bonding system ( Fuji Ortho LC ) decreases the incidence of decalcification without increasing the amount of bonding failures . A prospect i ve clinical trial with 16 patients encompassing a total of 298 teeth was conducted . The 149 control teeth were bonded with a light-cured composite resin ( Reliance Light Bond ) whereas the 149 experimental teeth were bonded with the light-cured glass ionomer agent .  Patients were followed for a period of 12 to 14 months . All teeth were evaluated for breakage ( bonding failure rate ) , and all maxillary anterior teeth ( 96 ) were evaluated for decalcification on a grade d scale . The glass ionomer failure rate was 24.8 % , and was higher than the composite resin failure rate of 7.4 % ( P < .001 ) . There were more glass ionomer bond failures in 12 of 16 patients ( P < .001 ) . Enamel decalcification was similar in the 2 bonding systems
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 .