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A Comparison of Shear Bond Strength of Orthodontic Brackets Bonded with Four Flowable Composites Bonded under Contamination: An Ex-Vivo Study

Received: 19 December 2014     Accepted: 4 January 2015     Published: 10 February 2015
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Abstract

Objective: To evaluate the shear bond strength of the brackets bonded with adhesive and flowable composites under contamination by human blood and human saliva& to evaluate enamel damage post debonding using ARI index. Material and Methods: 100 human premolars extracted for orthodontic reasons were used & shear bond strengths of 4 flowable composites and one conventional composite were evaluated under 2 bonding conditions: (1) contamination with saliva (2) contamination with blood. Contamination was done after the application of primer in all the groups and before bonding the brackets, decontamination was done by using the air water spray for 5 seconds and air drying the surface. Shear bond strengths were measured with universal testing machine after placing the bonded specimen in deionized water and incubator at 37˚C for 72 hours to permit adequate water absorption and equilibration. After debonding, each specimen was examined under a stereoscopic zoom microscope (10X) to identify the location of the bond failure. The residual composite remaining on the premolar was assessed by using the remnant index (ARI), where each specimen was scored according to the amount of material remaining on the enamel surface. Results: conventional composite showed the highest bond strength in both blood and salivary contaminations. Among the flowable composites, each behaved differently. Blood contamination showed reduced bond strengths in all the groups. Decontamination with air water spray and air drying the surface before bonding the brackets seems to be satisfactory. Conclusion: with use of a primer, flowable composites can be used to bond the orthodontic brackets under contamination and decontamination with air water spray for 5 seconds and air drying the surface before bonding seems to be satisfactory if contamination occurs after the application of the primer.

Published in International Journal of Materials Science and Applications (Volume 4, Issue 1)
DOI 10.11648/j.ijmsa.20150401.19
Page(s) 47-51
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Shear Bond Strength, Flowable Composites, Contamination

References
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[9] Oztoprak MO, Isik F, Sayinshu K, Arun T, Aydemir B. Effect of blood and saliva contamination on shear bond strength of brackets bonded with 4 adhesives. Am J of OrthodDentofacial Orthop 2007’131:238-242
[10] TancanUysal, Zafer Sari, and Abdullah Demir.Are the Flowable Composites Suitable for Orthodontic Bracket Bonding?. The Angle Orthodontist: October 2004, Vol. 74, No. 5, pp. 697-702
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[17] Neelagiri K, Kundabala M, Shashi RA, Thomas MS, Parolia A.Effects of saliva contamination and decontamination procedures on shear bond strength of self-etch dentine bonding systems: An in vitro study. J Conserv Dentistry 2010; 13:71-5.
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Cite This Article
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    Sunil Kumar M., Mahantesh C., Umesh H. M., Ashita Talwar, Sufia Qaiser, et al. (2015). A Comparison of Shear Bond Strength of Orthodontic Brackets Bonded with Four Flowable Composites Bonded under Contamination: An Ex-Vivo Study. International Journal of Materials Science and Applications, 4(1), 47-51. https://doi.org/10.11648/j.ijmsa.20150401.19

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    ACS Style

    Sunil Kumar M.; Mahantesh C.; Umesh H. M.; Ashita Talwar; Sufia Qaiser, et al. A Comparison of Shear Bond Strength of Orthodontic Brackets Bonded with Four Flowable Composites Bonded under Contamination: An Ex-Vivo Study. Int. J. Mater. Sci. Appl. 2015, 4(1), 47-51. doi: 10.11648/j.ijmsa.20150401.19

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    AMA Style

    Sunil Kumar M., Mahantesh C., Umesh H. M., Ashita Talwar, Sufia Qaiser, et al. A Comparison of Shear Bond Strength of Orthodontic Brackets Bonded with Four Flowable Composites Bonded under Contamination: An Ex-Vivo Study. Int J Mater Sci Appl. 2015;4(1):47-51. doi: 10.11648/j.ijmsa.20150401.19

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  • @article{10.11648/j.ijmsa.20150401.19,
      author = {Sunil Kumar M. and Mahantesh C. and Umesh H. M. and Ashita Talwar and Sufia Qaiser and Sonal Sahasrabudhe},
      title = {A Comparison of Shear Bond Strength of Orthodontic Brackets Bonded with Four Flowable Composites Bonded under Contamination: An Ex-Vivo Study},
      journal = {International Journal of Materials Science and Applications},
      volume = {4},
      number = {1},
      pages = {47-51},
      doi = {10.11648/j.ijmsa.20150401.19},
      url = {https://doi.org/10.11648/j.ijmsa.20150401.19},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20150401.19},
      abstract = {Objective: To evaluate the shear bond strength of the brackets bonded with adhesive and flowable composites under contamination by human blood and human saliva& to evaluate enamel damage post debonding using ARI index. Material and Methods: 100 human premolars extracted for orthodontic reasons were used & shear bond strengths of 4 flowable composites and one conventional composite were evaluated under 2 bonding conditions: (1) contamination with saliva (2) contamination with blood. Contamination was done after the application of primer in all the groups and before bonding the brackets, decontamination was done by using the air water spray for 5 seconds and air drying the surface. Shear bond strengths were measured with universal testing machine after placing the bonded specimen in deionized water and incubator at 37˚C for 72 hours to permit adequate water absorption and equilibration. After debonding, each specimen was examined under a stereoscopic zoom microscope (10X) to identify the location of the bond failure. The residual composite remaining on the premolar was assessed by using the remnant index (ARI), where each specimen was scored according to the amount of material remaining on the enamel surface. Results: conventional composite showed the highest bond strength in both blood and salivary contaminations. Among the flowable composites, each behaved differently. Blood contamination showed reduced bond strengths in all the groups. Decontamination with air water spray and air drying the surface before bonding the brackets seems to be satisfactory. Conclusion: with use of a primer, flowable composites can be used to bond the orthodontic brackets under contamination and decontamination with air water spray for 5 seconds and air drying the surface before bonding seems to be satisfactory if contamination occurs after the application of the primer.},
     year = {2015}
    }
    

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  • TY  - JOUR
    T1  - A Comparison of Shear Bond Strength of Orthodontic Brackets Bonded with Four Flowable Composites Bonded under Contamination: An Ex-Vivo Study
    AU  - Sunil Kumar M.
    AU  - Mahantesh C.
    AU  - Umesh H. M.
    AU  - Ashita Talwar
    AU  - Sufia Qaiser
    AU  - Sonal Sahasrabudhe
    Y1  - 2015/02/10
    PY  - 2015
    N1  - https://doi.org/10.11648/j.ijmsa.20150401.19
    DO  - 10.11648/j.ijmsa.20150401.19
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 47
    EP  - 51
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20150401.19
    AB  - Objective: To evaluate the shear bond strength of the brackets bonded with adhesive and flowable composites under contamination by human blood and human saliva& to evaluate enamel damage post debonding using ARI index. Material and Methods: 100 human premolars extracted for orthodontic reasons were used & shear bond strengths of 4 flowable composites and one conventional composite were evaluated under 2 bonding conditions: (1) contamination with saliva (2) contamination with blood. Contamination was done after the application of primer in all the groups and before bonding the brackets, decontamination was done by using the air water spray for 5 seconds and air drying the surface. Shear bond strengths were measured with universal testing machine after placing the bonded specimen in deionized water and incubator at 37˚C for 72 hours to permit adequate water absorption and equilibration. After debonding, each specimen was examined under a stereoscopic zoom microscope (10X) to identify the location of the bond failure. The residual composite remaining on the premolar was assessed by using the remnant index (ARI), where each specimen was scored according to the amount of material remaining on the enamel surface. Results: conventional composite showed the highest bond strength in both blood and salivary contaminations. Among the flowable composites, each behaved differently. Blood contamination showed reduced bond strengths in all the groups. Decontamination with air water spray and air drying the surface before bonding the brackets seems to be satisfactory. Conclusion: with use of a primer, flowable composites can be used to bond the orthodontic brackets under contamination and decontamination with air water spray for 5 seconds and air drying the surface before bonding seems to be satisfactory if contamination occurs after the application of the primer.
    VL  - 4
    IS  - 1
    ER  - 

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Author Information
  • Department of Orthodontics & Dentofacial Orthopaedics, M. S. Ramaiah Dental College & Hospital, M. S. Ramaiah University of Applied Sciences, Faculty of Dental Sciences, Bangalore, India

  • Department of Orthodontics & Dentofacial Orthopaedics, M. S. Ramaiah Dental College & Hospital, M. S. Ramaiah University of Applied Sciences, Faculty of Dental Sciences, Bangalore, India

  • Department of Orthodontics & Dentofacial Orthopaedics, M. S. Ramaiah Dental College & Hospital, M. S. Ramaiah University of Applied Sciences, Faculty of Dental Sciences, Bangalore, India

  • Department of Orthodontics & Dentofacial Orthopaedics, M. S. Ramaiah Dental College & Hospital, M. S. Ramaiah University of Applied Sciences, Faculty of Dental Sciences, Bangalore, India

  • Department of Orthodontics & Dentofacial Orthopaedics, M. S. Ramaiah Dental College & Hospital, M. S. Ramaiah University of Applied Sciences, Faculty of Dental Sciences, Bangalore, India

  • Department of Orthodontics & Dentofacial Orthopaedics, M. S. Ramaiah Dental College & Hospital, M. S. Ramaiah University of Applied Sciences, Faculty of Dental Sciences, Bangalore, India

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