Evaluation of Bonded Orthodontics Brackets Using Different Adhesive Systems after a Cariogenic Challenge
Luís Roberto Marcondes Martins, Mario Vedovello Filho, Suzy H. A. Martins, Heloísa C. Valdrighi, Silvia Amélia S. Vedovello, Mayury Kuramae, Adriana Simoni Lucato, Eloisa Marcantonio Boeck
Citation Information :
Martins LR, Filho MV, Martins SH, Valdrighi HC, Vedovello SA, Kuramae M, Lucato AS, Boeck EM. Evaluation of Bonded Orthodontics Brackets Using Different Adhesive Systems after a Cariogenic Challenge. J Contemp Dent Pract 2010; 11 (1):41-48.
The aims of this study were to evaluate the prevention of enamel demineralization and the shear bond strength (SBS) of orthodontic brackets bonded with fluoride and no fluoride conventional and selfetching adhesives and to analyze the characteristics of enamel near the bond area using a polarized light microscope (PLM) following demineralization and remineralization cycling (Des Re).
Methods and Materials
Fifty bovine incisors were selected and divided into five groups according to the adhesive system used during the bonding process: G1, Transbond™ XT Adhesive; G2, Single Bond 2 Adhesive; G3, Optibond Solo Plus; G4, Clearfil SE Bond; and G5, Clearfil Protect Bond. Transbond™ XT was used to fix the brackets to the teeth in all groups. After bonding, the groups were separated into cycling and control subgroups. The specimens were submitted to SBS testing and evaluated under a PLM. The results were submitted to ANOVA and Tukey's post hoc tests (p<.05).
Results
There were no significant differences for SBS after Des-Re cycling. The Clearfil Protect Bond showed the SBS to be statistically lower than the other adhesives used for the control groups. After a cariogenic challenge, the Single Bond adhesive showed an SBS significantly lower than Transbond XT. The Des-Re cycling increased the enamel demineralization induced after the cariogenic challenge.
Conclusions
The cariogenic challenge did not reduce the SBS. Optibond Solo Plus and Transbond™ XT adhesives presented the highest SBS while Clearfil Protect Bond had the lowest. The PLM showed that the cariogenic challenge increased the enamel demineralization for all adhesives evaluated, independent of the presence of fluoride.
Clinical Significance
An alternative material with the ability to prevent enamel demineralization should be used in orthodontic patients due to the higher accumulation of plaque around orthodontic brackets.
Citation
Filho MV, Martins SHA, Valdrighi HC, Vedovello SAS, Kuramae M, Lucato AS, Boeck EM, Martins LRM. Evaluation of Bonded Orthodontics Brackets Using Different Adhesive Systems after a Cariogenic Challenge. J Contemp Dent Pract [Internet]. 2010 Jan; 11(1):041-048. Available from: http://www.thejcdp.com/journal/ view/volume11-issue1-filho.
Bonding to ground dentin by a phenyl-P selfetching primer. J Dent Res. 1994; 73(6): 1212-20.
Effect of self-etchant pH on the shear bond strength of orthodontic brackets. Am J Orthod Dentofacial Orthop. 2008; 134(2):203-8.
Shear bond strength of one etch-and-rinse and five self-etching dental adhesives when used by six operators. Acta Odontol Scand. 2008; 66(4):243-9.
In vitro studies on the effects of fluoride on de- and remineralization. J Dent Res. 1990;69 Spec No:614-9; discussion 634-6.
The application of in vitro models to research on demineralization and remineralization of the teeth. Adv Dent Res. 1995; 9(3):175-93; discussion 194-7.
Changes in the subgingival microbiota and periodontal parameters before and 3 months after bracket placement. Am J Orthod Dentofacial Orthop. 2006;130(3):275.e17-22.
Fluoride, remineralization and root caries. Am J Dent. 1994; 7(5):271-4.
Inhibition of artificial secondary caries by fluoride-releasing adhesives on root dentin. J Oral Rehabil. 2002; 29(6):523-7.
Ability of restorative and fluoride releasing materials to prevent marginal dentine demineralization. Biomaterials. 2004; 25(6):1011-7.
Adhesive systems and secondary caries formation: Assessment of dentin bond strength, caries lesions depth and fluoride release. Dent Mater. 2007; 23(3): 308-16.
A quarter century of changes in oral health in the United States. J Dent Educ. 1995; 59(1):19-57.
In vitro evaluation of secondary caries development in enamel and root dentin around luted metallic restoration. Oper Dent. 2001; 26(1):52-9.
Fluoride action on acid resistance of unaltered human surface enamel. J Oral Pathol. 1979; 8(4):207-12.
Application of quantitative light-induced fluorescence for assessing early caries lesions. Monogr Oral Sci. 2000; 17:144-62.
Prevention of demineralization around orthodontic brackets in vitro. Am J Orthod Dentofacial Orthop. 2007;131(6):705.e1-9.
An investigation to estimate the fluoride uptake adjacent to a fluoride-releasing bonding agent. Br J Orthod. 1995; 22(2):113-22.
Enamel microhardness after in vitro demineralization and role of different restorative materials. J Biomater Sci Polym Ed. 2002; 13(3):349-57.
Reduction of caries and of demineralization around orthodontic brackets: effect of a fluoride-releasing resin in the rat model. Am J Orthod Dentofacial Orthop. 1994; 106(6): 583-7.
Am J Orthod Dentofacial Orthop. 1995; 108(3):278-83.
Fluoride release capacities of four different orthodontic adhesives. J Clin Pediatr Dent. 1999; 23(4):315-9.
Six-month storage-time evaluation of onebottle adhesive systems to dentin. J Esthet Restor Dent. 2003; 15(1):43-8; discussion 49.
Effect of topical application of fluoride gel on artificial secondary caries inhibition. Int Chin J Dent. 2003; 3:53-61.
Mineralization in bovine dentin adjacent to glass-ionomer restorations. J Dent. 2001; 29(3):211-5.
A review of direct orthodontic bonding. Br J Orthod. 1975; 3:171-8.
Effects of one-year storage in water on bond strength of self-etching adhesives to enamel and dentin. Dent Mater J. 2008; 27(2):266-72.
