Open Access, Peer-reviewed
eISSN 2234-7666
    J Korean Acad Conserv Dent. 2004 Jul;29(4):339-345. Korean.
    Published online Jul 31, 2004.
    https://doi.org/10.5395/JKACD.2004.29.4.339
    Copyright © 2004 Korean Academy of Conservative Dentistry
    Original Article

    Micro-shear bond strength to dentin under simulated pulpal pressure

    Yun-Jung Song and Sung-Ho Park
      • Department of Conservative Dentistry, College of Dentistry, Yonsei University, Korea.
    • Corresponding author: Sung-Ho Park. Department of Conservative Dentistry, College of Dentistry, Yonsei University, 134 Shinchon-Dong, Seodaemoon Gu, Seoul, Korea, 120-752. Tel: 82-2-361-8709, Fax: 82-2-313-7575, Email: sunghopark@yumc.yonsei.ac.kr

    This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

    Abstract

    The aim of this study was to measure and compare the micro shear bond strengths of the following dentin bonding systems to the dentin surfaces under simulated pulpal pressure; All Bond 2®, Second®, AdheSE®, Adper Prompt L-Pop®. The occlusal surfaces of 180 extracted human molars were prepared so the dentin bonding surfaces could be exposed. The teeth were randomly assigned to 3 equal groups of 60 each and subdivided. The dentin surfaces were treated with the above mentioned bonding system and resin composite cylinders were built up under a simulated pulpal pressure when saline (Group II) or diluted bovine serum (Group III) was used as the pulpal fluid. As a control, the same procedures were performed in the dried dentin surfaces (Group I). After one day of storage in water, the micro shear bond strengths were measured using an EZ tester. Group II and III showed significantly lower shear bond strength than Group I statistically (p < 0.05). SEbond® and AdheSE® showed no difference among the different dentin condition. In the Adper Prompt L-Pop®, a simulated pulpal pressure were applied to the specimens using diluted bovine serum, which showed a higher strength than the specimens in which saline was used (p < 0.05).

    Keywords
    Micro-shear bond strength; Pulpal pressure

    Figures

    Figure 1
    Simulation of pulpal pressure

    Figure 2
    Tooth slice and specimen hole

    Figure 4
    Micro-shear bond strength of dentin adhesive systems

    *statistically significant (p < 0.05)

    Tables

    Table 1
    Materials used in the present study

    Table 2
    Micro-shear bond strength (MPa)

    Table 3
    Two-way ANOVA between the surface conditions and dentin bonding systems

    References

      1. Causton BE. Improved bonding of composite restorative to dentin. Br Dent J 1984;156:93–95.
      1. Komatsu J, Finger W. Correlation of early bond strength with margin gaps. Dent Mater 1986;2:257–262.
      1. Retief DH. In vitro investigation and evaluation of dentin bonding agents. Am J Dent 1988;1:176–183.
      1. Suzuki T, Finger WJ. Dentin adhesives: Site of dentin versus bonding of composite resins. Dent Mater 1988;4:379–383.
      1. Tagami J, Tao L, Pasheley DH. Correlation among dentin depth, permeability, and bond strength of adhesive resins. Dent Mater 1990;6:45–50.
      1. Derkson GD, Pashley DH. Microleakage measurement of selected restorative materials: a new in vitro method. J Prosthet Dent 1986;56:435–440.
      1. Pashely DH, Nelson R, Willians EC. Use of dentine-fluid protein concentration to measure pulp capillary reflection coefficients in dogs. Arch Oral Biol 1981;26:703–710.
      1. Prati C, Pashley DH, Montanari G. Hydrostatic intrapulpal pressure and bond strength of bonding systems. Dent Mater 1991;7:54–58.
      1. Tao L, Tagami J, Pashley DH. Pulpal pressure and bond strength of SuperBond and Gluma. Am J Dent 1991;4:73–76.
      1. Davidson CL, Abdalla AI, De Gee AJ. An investigation into the quality of dentine bonding systems for accomplishing a durable bond. J Oral Rehabil 1993;20:291–300.
      1. Augustin SJ, Paul H, Schärer P. Perfusing dentine with horse serum or physiologic saline: its effect on adhesion of dentine bonding agents. J Oral Rehabil 1998;25:596–602.
      1. Pioch T, Staehle HJ, Schneider H. Effect of intrapulpal pressure simulation in vitro on shear bond strengths and hybrid layer formation. Am J Dent 2001;14:319–323.
      1. Nikaido T, Burrow MF, Tagami J, Takatsu T. Effect of pulpal pressure on adhesion or resin composite to dentine: bovine serum versus saline. Quintessence Int 1995;26:221–226.
      1. Van Hassel HJ. Physiology of the human dental pulp. Oral Surg Oral Med Oral Pathol 1971;32:126–134.
      1. Belli S, Unlü N, Ozer F. Bonding strength to two different surface of dentin under simulated pulpal pressure. J Adhes Dent 2001;3:145–152.
      1. Perdigao J, Swift EJ, Cloe BC. Effect of etchant,k surface moisture, and resin composite on dentin bond strength. Am J Dent 1993;6:61–64.
      1. Yamauchi J. Study of dental adhesive resin containing phosphoric acid methacrylate monomer. J Jpn Dent Mater 1986;5:144–154.
      1. Meerbeek V, Vargas M, Inoue S, Yoshida Y, Peumans M. Adhesives and cements to promote preservation dentistry. Oper Dent Suppl 2001;6:119–144.
      1. Tay FR, King NM, Suh BI, Pashley DH. Effect of delayed activation of light cured resin composite on bonding of all-in-one adhesives. J Adhes Dent 2001;3:207–225.
    MeSH Terms
    Dentin*
    Humans
    Molar
    Tooth
    Water
    Metrics
    Share
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