Shear Bond Strength of Three Auto-adhesive Resin Cements to Dentin

Asefzadeh, Farrokh and Merati, Mohsen (2009) Shear Bond Strength of Three Auto-adhesive Resin Cements to Dentin. Journal of Mashhad Dental School, 33 (3). pp. 183-190.

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Abstract

Introduction: Today, much of the researches and innovations in dental materials are focused on simplification of the bonding procedures. The aim of this study was to assess shear bond strength (SBS) of three auto-adhesive dual-cured resin cements to dentin. Materials &amp; Methods: In this in vitro experimental study, 40 intact human Third molars were selected and randomly divided into 4 groups of 10 teeth. Group I (Control group): After 15 seconds of etching and application of Excite DSC Bond (Ex), Varilink II (Var II) composite was injected into the plastic ring and light cured. Group II: RelyX Unicem (RX) was injected into the plastic ring and light cured after 30 seconds (according to manufacturer's instruction). Group III: Maxcem (Mc) was injected into the plastic ring and light cured after 30 seconds (according to manufacturer's instruction). Group IV: Multilink Sprint (MS) was injected into the plastic ring and light cured after 30 seconds (according to manufacturer's instruction). After thermal cycling (1000 cycle, 5-55˚C), SBS were measured for each groups with a Zwick/Roell Universal Testing Machine. The data were analyzed by ANOVA and Scheffe tests. Results: The mean SBS and Standard deviations for groups I, II, III and IV were 12.95±2.64, 6.73±0.79, 3.01±0.90 and 4.60±0.75 MPa respectively. Statistical analysis revealed that: 1. The mean SBS of Var II was significantly higher than the other groups (P<0.05). 2. The mean SBS of Mc and MS were significantly lower than RX (P<0.05).3. The mean SBS of Mc and MS were not significantly different (P>0.05). Conclusion: Bond strength of the auto-adhesive dual-cured resin cements (RX, Mc, MS) to dentin was lower than Var II composite combined with Ex bond. Bond strength of RX was higher than Mc and MS.

Item Type: Article
Subjects: WU Dentistry. Oral surgery
Divisions: Journals > Journal of Mashhad Dental School
Depositing User: jmds jmds
Date Deposited: 23 Sep 2017 15:45
Last Modified: 23 Sep 2017 15:45
URI: http://eprints.mums.ac.ir/id/eprint/2852

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