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 .
A comparison of in vitro enamel demineralization potential of 3 orthodontic cements.
The objective of this in vitro study was to compare resistance to enamel demineralization after b and ing with 3 orthodontic cements . The 3 orthodontic cement groups and the nonb and ed control group were evaluated for cariopreventive potential .  One hundred twenty extracted human molars were selected for b and ing , embedded in resin blocks , and r and omly assigned to the following 4 groups : zinc phosphate cement , zinc polycarboxylate cement , resin-modified glass ionomer ( RMGI ) , and nonb and ed control . Orthodontic b and s were placed and cemented ; specimens were stored in artificial saliva at 37 degrees C for 30 days , thermocycled for 24 hours , and then deb and ed with a customized b and -removal device attached to a universal testing machine . The cement was h and removed , and 2 coats of nail varnish were applied to the teeth , leaving a 2 x 2-mm window exposed on the buccal surface of the mesiobuccal cusp . The teeth were stored in lactic acid-gelatin solution for 4 weeks at 37 degrees C to develop simulated white spot decalcification in the window . The teeth were subjected to dye ( 10 % methylene blue ) for 24 hours and then sectioned through the window . The depth of dye penetration was determined and used as a measure of the cariopreventive effect of the b and ing cement . Data were analyzed with a 1-way ANOVA and a Tukey test for the multiple comparisons . Dye penetration occurred as follows : the zinc phosphate and control groups were about the same ; there was less dye penetration with the zinc polycarboxylate , and the least with the resin-modified glass ionomer . The 2 fluoride-releasing cements ( zinc polycarboxylate and RMGI ) demonstrated less demineralization than the zinc phosphate in vitro and might provide greater protection from demineralization around a b and periphery in clinical setting
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 .