European Archives of Paediatric Dentistry

, Volume 18, Issue 2, pp 113–118 | Cite as

Degradation of resin–dentine bond of different adhesive systems to primary and permanent dentine

  • F. Z. M. Soares
  • T. L. Lenzi
  • R. de Oliveira RochaEmail author
Original Scientific Article



To evaluate the water storage degradation of resin–dentine bonds of different adhesive systems to primary and permanent human dentine.


Flat occlusal human dentine surfaces of 15 primary molars and 15 permanent molars were randomly assigned according to adhesive systems: Adper Single Bond 2; Clearfil SE Bond and One Up Bond F Plus. After bonding procedures, the adhesives were applied according to the manufacturers’ instructions and composite resin blocks were built. Restored teeth were sectioned rendering rectangular sticks (RS) (0.4 mm2). The RS were submitted to microtensile bond strength (µTBS) test according to the water storage time: 24 h, 1-year, and 2-years. Mean µTBS values were analysed by three-way analysis of variance (mixed design) and Tukey post hoc test (α = 0.05). The failure mode was analysed at 400× magnification.


All three factors isolated showed significant influences on µTBS, as did the cross-product interactions between material vs. storage time (p = 0.01) and substrate vs. storage time (p = 0.002). Bond strength means to primary dentine were lower than to permanent dentine (34.7 ± 10.1 and 45.8 ± 12.9 mPa, respectively) after 2-years of water storage. The one-step self-etch adhesive (One Up Bond F Plus) showed less stable bond strength after 2-years of water storage.


The resin–dentine bond of primary teeth was more prone to degradation over time compared to permanent dentine.


Bond strength Dentine Permanent teeth Primary teeth 


Compliance with ethical standards

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study protocol was previously approved by the Local Ethics Committee, Universidade Federal de Santa Maria, CAAE 367657 14.3.0000.5346

This study has no funding.

All authors declare that they have no conflict of interest.


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Copyright information

© European Academy of Paediatric Dentistry 2017

Authors and Affiliations

  • F. Z. M. Soares
    • 1
  • T. L. Lenzi
    • 2
  • R. de Oliveira Rocha
    • 3
    Email author
  1. 1.Department of Restorative DentistryFederal University of Santa MariaSanta MariaBrazil
  2. 2.Graduate Program in Dental ScienceFederal University of Santa MariaSanta MariaBrazil
  3. 3.Department of StomatologyFederal University of Santa MariaSanta MariaBrazil

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