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 resin-reinforced self-cured glass ionomer cement and a composite resin for direct bonding of orthodontic brackets. Part 2: Bonding on dry enamel and on enamel soaked with saliva.
The purpose s of this investigation were to compare the clinical performance of a resin-reinforced self-cured glass ionomer cement to a st and ard composite resin in the direct bonding of orthodontic brackets when bonded onto : a ) dry teeth and b ) teeth soaked with saliva . The two bonding agents were compared using a split-mouth design . In that , both systems were used for direct bonding of stainless steel brackets in every patient . Thirty-eight consecutive patients with fixed appliances were followed for a period of 12 months . The patients were r and omly divided into two groups : group A ( 11 patients ) and group B ( 27 patients ) . In group A , the performance of 220 stainless steel brackets was evaluated : 110 brackets were bonded with GC Fuji Ortho glass ionomer cement ( GC Industrial Co. , Tokyo , Japan ) onto dry teeth , and 110 bonded with System 1 + composite resin ( Ormco Corp. , Glendora , CA ) . In group B , the performance of 540 stainless steel brackets was evaluated : 270 brackets were bonded with GC Fuji Ortho onto teeth soaked with saliva , and 270 bonded with System 1 + . In group A , GC Fuji Ortho recorded an overall failure rate ( 34.5 % ) significantly higher ( p < 0.05 ) than System 1 + ( 9 % ) when applied onto completely dry teeth . Conversely , in group B , no statistically significant differences ( p > 0.05 ) between the failure rates of the two bonding agents were found when GC Fuji Ortho was used on teeth soaked with saliva . It was concluded , therefore , that GC Fuji Ortho shows clinical ly acceptable bond strengths when bonded onto moist teeth , but not when used on dry enamel . Both bonding agents failed mostly at the enamel/adhesive interface , without causing any enamel damage
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 .