19–25 In an attempt to increase the bond strengths of GICs, resin particles were added to their formulation to create resin-modified glass ionomers (RMGIs). 10–17 Fluoride release was shown to increase in the plaque adjacent to brackets bonded with GICs, 18 but their use in orthodontics was limited because of their lower bond strengths. Glass ionomer cements (GICs) were initially introduced as orthodontic bonding adhesives to take advantage of some of their desirable characteristics, namely, their ability to chemically bond to tooth structure 8, 9 and sustain fluoride release following bonding. In addition, brackets bonded with Fuji Ortho LC resulted in less residual adhesive remaining on the teeth. 001), with more adhesive remaining on the teeth bonded using Transbond.Ĭonclusions: The new self-etch conditioner can be used with an RMGI to successfully bond brackets. The comparisons of the ARI scores between the three groups (χ 2 = 35.5) indicated that bracket failure mode was significantly different ( P <. #Ion bonding conditioner plusThe mean SBS for Transbond Plus was 8.6 ± 2.6 MPa, for Fuji Ortho LC using 10% polyacrylic acid 9.1 ± 4.6 MPa, and for Fuji Ortho LC using GC Self-conditioner 9.9 ± 4.1 MPa. Results: There were no significant differences in the SBS ( P =. Analysis of variance was used to compare the shear bond strength (SBS), and the χ 2 test was used to compare the Adhesive Remnant Index (ARI) scores. The teeth were debonded in shear mode using a universal testing machine, and the amount of residual adhesive remaining on each tooth was evaluated. The same bracket type was used on all groups. In group 3, 20 brackets were bonded using Fuji Ortho LC with a new no-rinse self-conditioner for RMGIs. In group 1 (control), 20 orthodontic brackets were bonded to teeth using Transbond Plus Self-etching Primer in group 2, 20 brackets were bonded using an RMGI with a 10% polyacrylic acid conditioner. Materials and Methods: Sixty human molars were cleaned, mounted, and randomly divided into three groups. Objective: To evaluate a new self-etch conditioner used with resin-modified glass ionomers (RMGIs) in bonding orthodontic brackets.
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