Journal of Biomaterials

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Bond Strength Evaluation of a Self-etching Adhesive and Two Composite Resins to Human Dentin Irradiated with Cobalt-60

Received: 3 September 2021    Accepted: 21 March 2022    Published: 14 April 2022
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Abstract

The aim of this study was to evaluate the bond strength of a self-etching adhesive system on teeth subjected to Co-60 irradiation. Thus, 24 human third molars were selected. Of these, 12 were randomly selected and exposed to total radiation of 1935,588 cGy (corresponding to the effective biological dose of 35 daily cycles of 2000 cGy). The teeth were prepared by removing the occlusal enamel, exposing a flat dentin surface. The Single Bond Universal Adhesive System (3M/ESPE) was applied to each group according to the manufacturer's instructions. Then, two resin increments, of 2 mm each, of composite resins Filtek Z350 XT (3M/ESPE) or Aura (SDI) were added, which were light cured for 20s. There were, therefore, four analysis groups: Aura + irradiated Universal Single Bond (ASBI), Aura + non-irradiated Universal Single Bond (ASBNI), Filtek Z350 + irradiated Universal Single Bond (FZSBI) and Filtek Z350 + irradiated Universal Single Bond (FZSBNI). The samples were sectioned, yielding toothpick-shaped specimens. To evaluate the bond strength, a microtensile test was performed using the EMIC DL - 2000 machine (EMIC, Brazil) with a load cell of 500N and a microtensile speed of 0.5 mm/min. Although the radiation doses applied may cause some structural changes in the dentin, this did not interfere with the bond strength of teeth that were or were not exposed to radiation and that were restored using a self-etching adhesive system. No statistically significant difference was found in the bond strength between the groups, whether comparing the irradiated and non-irradiated groups, or between the different resins used: ASBI (35.76 Mpa), ASBNI (34.32 Mpa), FZSBI (32.20 Mpa) and FZSBNI (38.37 Mpa).

DOI 10.11648/j.jb.20220601.11
Published in Journal of Biomaterials (Volume 6, Issue 1, June 2022)
Page(s) 1-4
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), 2024. Published by Science Publishing Group

Keywords

Adhesiveness, Radiotherapy, Composite Resins

References
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    Juliana Dorini Amaral, Thiago Dorini Sanfins, Beatriz Garcia Coutinho, Luiz Flavio Kalil Telles, Andre Luis Dorini. (2022). Bond Strength Evaluation of a Self-etching Adhesive and Two Composite Resins to Human Dentin Irradiated with Cobalt-60. Journal of Biomaterials, 6(1), 1-4. https://doi.org/10.11648/j.jb.20220601.11

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    ACS Style

    Juliana Dorini Amaral; Thiago Dorini Sanfins; Beatriz Garcia Coutinho; Luiz Flavio Kalil Telles; Andre Luis Dorini. Bond Strength Evaluation of a Self-etching Adhesive and Two Composite Resins to Human Dentin Irradiated with Cobalt-60. J. Biomater. 2022, 6(1), 1-4. doi: 10.11648/j.jb.20220601.11

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    AMA Style

    Juliana Dorini Amaral, Thiago Dorini Sanfins, Beatriz Garcia Coutinho, Luiz Flavio Kalil Telles, Andre Luis Dorini. Bond Strength Evaluation of a Self-etching Adhesive and Two Composite Resins to Human Dentin Irradiated with Cobalt-60. J Biomater. 2022;6(1):1-4. doi: 10.11648/j.jb.20220601.11

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  • @article{10.11648/j.jb.20220601.11,
      author = {Juliana Dorini Amaral and Thiago Dorini Sanfins and Beatriz Garcia Coutinho and Luiz Flavio Kalil Telles and Andre Luis Dorini},
      title = {Bond Strength Evaluation of a Self-etching Adhesive and Two Composite Resins to Human Dentin Irradiated with Cobalt-60},
      journal = {Journal of Biomaterials},
      volume = {6},
      number = {1},
      pages = {1-4},
      doi = {10.11648/j.jb.20220601.11},
      url = {https://doi.org/10.11648/j.jb.20220601.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jb.20220601.11},
      abstract = {The aim of this study was to evaluate the bond strength of a self-etching adhesive system on teeth subjected to Co-60 irradiation. Thus, 24 human third molars were selected. Of these, 12 were randomly selected and exposed to total radiation of 1935,588 cGy (corresponding to the effective biological dose of 35 daily cycles of 2000 cGy). The teeth were prepared by removing the occlusal enamel, exposing a flat dentin surface. The Single Bond Universal Adhesive System (3M/ESPE) was applied to each group according to the manufacturer's instructions. Then, two resin increments, of 2 mm each, of composite resins Filtek Z350 XT (3M/ESPE) or Aura (SDI) were added, which were light cured for 20s. There were, therefore, four analysis groups: Aura + irradiated Universal Single Bond (ASBI), Aura + non-irradiated Universal Single Bond (ASBNI), Filtek Z350 + irradiated Universal Single Bond (FZSBI) and Filtek Z350 + irradiated Universal Single Bond (FZSBNI). The samples were sectioned, yielding toothpick-shaped specimens. To evaluate the bond strength, a microtensile test was performed using the EMIC DL - 2000 machine (EMIC, Brazil) with a load cell of 500N and a microtensile speed of 0.5 mm/min. Although the radiation doses applied may cause some structural changes in the dentin, this did not interfere with the bond strength of teeth that were or were not exposed to radiation and that were restored using a self-etching adhesive system. No statistically significant difference was found in the bond strength between the groups, whether comparing the irradiated and non-irradiated groups, or between the different resins used: ASBI (35.76 Mpa), ASBNI (34.32 Mpa), FZSBI (32.20 Mpa) and FZSBNI (38.37 Mpa).},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Bond Strength Evaluation of a Self-etching Adhesive and Two Composite Resins to Human Dentin Irradiated with Cobalt-60
    AU  - Juliana Dorini Amaral
    AU  - Thiago Dorini Sanfins
    AU  - Beatriz Garcia Coutinho
    AU  - Luiz Flavio Kalil Telles
    AU  - Andre Luis Dorini
    Y1  - 2022/04/14
    PY  - 2022
    N1  - https://doi.org/10.11648/j.jb.20220601.11
    DO  - 10.11648/j.jb.20220601.11
    T2  - Journal of Biomaterials
    JF  - Journal of Biomaterials
    JO  - Journal of Biomaterials
    SP  - 1
    EP  - 4
    PB  - Science Publishing Group
    SN  - 2640-2629
    UR  - https://doi.org/10.11648/j.jb.20220601.11
    AB  - The aim of this study was to evaluate the bond strength of a self-etching adhesive system on teeth subjected to Co-60 irradiation. Thus, 24 human third molars were selected. Of these, 12 were randomly selected and exposed to total radiation of 1935,588 cGy (corresponding to the effective biological dose of 35 daily cycles of 2000 cGy). The teeth were prepared by removing the occlusal enamel, exposing a flat dentin surface. The Single Bond Universal Adhesive System (3M/ESPE) was applied to each group according to the manufacturer's instructions. Then, two resin increments, of 2 mm each, of composite resins Filtek Z350 XT (3M/ESPE) or Aura (SDI) were added, which were light cured for 20s. There were, therefore, four analysis groups: Aura + irradiated Universal Single Bond (ASBI), Aura + non-irradiated Universal Single Bond (ASBNI), Filtek Z350 + irradiated Universal Single Bond (FZSBI) and Filtek Z350 + irradiated Universal Single Bond (FZSBNI). The samples were sectioned, yielding toothpick-shaped specimens. To evaluate the bond strength, a microtensile test was performed using the EMIC DL - 2000 machine (EMIC, Brazil) with a load cell of 500N and a microtensile speed of 0.5 mm/min. Although the radiation doses applied may cause some structural changes in the dentin, this did not interfere with the bond strength of teeth that were or were not exposed to radiation and that were restored using a self-etching adhesive system. No statistically significant difference was found in the bond strength between the groups, whether comparing the irradiated and non-irradiated groups, or between the different resins used: ASBI (35.76 Mpa), ASBNI (34.32 Mpa), FZSBI (32.20 Mpa) and FZSBNI (38.37 Mpa).
    VL  - 6
    IS  - 1
    ER  - 

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Author Information
  • Dorini Dentistry, Itatiba, Brazil

  • Graduate College, University San Francisco, Bragan?a Paulista, Brazil

  • Graduate College, University San Francisco, Bragan?a Paulista, Brazil

  • North Riograndense League Against Cancer, Natal, Brazil

  • Departament of Dentistry, Federal University of Rio Grande do Norte, Natal, Brazil

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